Chapter 4 Ground truth 4-1 Selection of survey zones For the ...

Chapter 4 Ground truth 4-1 Selection of survey zones

For the selection of survey zones in Phase I, among 44 zones those are dense with mineral deposits as shown in Table I-5-1-1, the following 20 zones that had little relationship with porphyry copper or copper/gold deposits, epithermal gold deposits, polymetallic vein deposits or SEDEX lead/zinc deposits, all of which had been selected as the targets for the reasons mentioned above, were excluded from the survey. ① Zones dense with the Ordovician sedimentary phosphate deposits: Zones 06 and 25 ② Zone dense with REE (rare earth element) deposits in carbonatite dikes: Zone 20 ③ Zones dense with borate / salts in evaporite : Zones 21, 29 and 30 ④ Zones dense with uranium / vanadium deposits existing in the Cretaceous Yacoraite Formation :

Zones 35, 36 and 37 ⑤ Zones dense with deposits of rare metals such as Nb, Ta and Be in pegmatite: Zones 32, 33 and 40 ⑥ Zones dense with placer deposits: Zones 04 and 19 ⑦ Zones dense with Sn or W deposits that were generated at relatively high temperature and are

expected to have little relationship with porphyry copper deposits: Zones 13, 14 and 44. ⑧ Zones dense with Pb/Zn/Ag vein deposits with Precambrian/Cambrian wall rock before the

forming of SEDEX lead/zinc deposits: Zones 16, 23 and 41 From the remaining 24 zones, 21 zones, or a total of 36 places (of mineral showings), were

selected as zones to be covered by the field survey of Phase I. In Phase II, the following 8 areas were selected. Because these area are thought to have high

potential for the existence of deposits but have been surveyed insufficiently, and future survey are expected to lead to the discovery of new deposits, among potential zones extracted in the evaluation of Phase I.

(1) SEDEX type lead/zinc deposits and volcanogenic massive sulfide deposits 1) El Aguilar area

It is necessary to clarify ore horizons by using lithogeochemistry in El Aguilar mine area including Rio Grande (Zone 13), and stratigraphical division with microfossils such as conodont.

2) Pumahuasi and 3)Santa Victoria area It is also necessary to identify, by the similar method, ore horizons in the east-to-west route

(Zones 2, 3 and 5) connecting from Pumahuasi to Santa Rosa and La Cienaga mineral showings.

4) La Colorada area In La Colorada mineral showing, volcanongenic massive sulfide deposits were discovered by

drilling of Pacific Rim Co., Ltd. It is desirable to identifier the feature of this deposit by analyzing drill hole core sample. Similarly to El Aguilar, lithogeochemical exploration is also required for extraction of ore horizons (Zone 18). Furthermore, Limeca mineral showing are considered as SEDEX type

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deposit and it also needs to clear the detail.

(2) Porphyry copper and epithermal type deposits 1) Pancho Arias area

It is hard to say that porphyry type copper and copper/gold deposits have been fully investigated in small-scale stock of the Neogene in the basement rocks located in the extension of volcanic rock arms away from the main body of volcanic rock. Concretely, areas to be investigated are Zone-28. 2) El Pago area

El Pago have been extracted as alteration zones by analysis of the satellite images. It is desirable to acquire the detailed characteristics and distribution of the alteration zone (Zone 47). 3) Rachaite area

It is known that large-scale argillitic alteration zones with base metal, such as Rachaite, Incachule and Pan de Azucar, exist on the wall of annular structure or resurgent calderas. Rachaite in Cornazuli caldera is one of the largest alteration zones in such area, therefore it necessary to identify the detail. 4) Galan area

From the analysis of satellite images, alterations were identified in the candela wall and on its southeast side around Zone-39 and Galan candela. However, this zone has not been sufficiently surveyed yet, so it is desirable to investigate the characteristics and the distribution of alteration and mineralization.

- 176 -

4-2 Survey result 4-2-1 SEDEX/VMS deposits

(1) Aguilar Mountains zone

1) Location and access

The Agular mountains (highest altitude: 5127m) is located from north to south between

smooth plateaus, called Puna and east part mountain range (Cordillera Oriental). The El Aguilar mine

is located almost at the center of this Aguilar Mountains, and about 60km south of Abra Pampa town,

at 23°12′46.3” S. Lat., and 65°40′42.4" W. Long. By driving 47km southward on the paved

National Road 9 from Abra Pampa, Tres Cruces where there is the gate of the El Aguilar mine is

reached in about 20 minutes. Going southward from this gate on a private road constructed over 50km

at the east foot of the Aguilar Mountains leads to the mine office.

2) Content of survey

In the Aguilar mine area, mineralization outcrops of El Aguilar, Oriental, Pirita, Esperanza,

and Rio Grande were surveyed, and in Aguilar mine area periphery, the lower part outcrop of Santa

Victoria Group was mainly surveyed and samples were collected (see Fig.II-4-2-1-1). In order to

clarify petrological, paleontological, geochemical characteristics of SEDEX horizon hosted deposits

and their stratum of hanging/foot walls, and to discover horizon similar to already-known SEDEX

horizon hosted deposits , these samples were subjected to the following various laboratory

examinations.

Observation of thin section of rock: 4

X rays diffraction analysis: 2

Observation of polished section of ore: 1

Ore assay: 1

Fossil identification: 18

Geochemical analysis: 46

To trace horizon hosted deposits, the characteristics of the stratum accompanying SEDEX

horizon hosted deposits were clarified by ASTER images.

3) Mining concessions

Mining concessions are hold in the El Aguilar mine and surrounded area.

4) Past exploration and mining activities

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- 178 -

In the Spanish colony age, a missionary who settled down in Yavi tried to recover the silver of

this ore deposits, and constructed a charcoal-fired blast furnace in the Fundicion valley of 7km south

from the Aguilar mine. The same as this registration of the Tapada mine, as the oldest report

concerning ore deposits of Aguilar mountain range; it is filed in the mining ledger of the Argentine

Republic that the mining right was granted to Mr. Manuel P. Pinto in June 1891.

Ore mining was carried out intermittently and on a small scale especially during World War I.

The mine property existed in the names of two men, Mr. Stone and Mr. Bongiovanni of San Salvador

of Jujuy in around 1918. This mine property was transferred to geologists of Saint Joseph Lead for the

name of the company by the end of 1923. Then, this mining right was deposed by the recommendation

of Compania Minera Aguilar S.A. (CMASA) and the Examination No. 23B in 1925. The measurement

records of the mine property and the approval are dated on November 6, 1928. The investment to the

ore deposits exploration including the adit development of 6,798m in length was made in around 1932.

Significant tonnage ore worthwhile to develop a large-scale ore deposits was exposed. The economic

crisis in 1930 delayed the initiation of development in Aguilar mine and operation of the dressing

plant for six years. From the beginning of 1936 up to the present time, the production of ore mining

and lead and zinc concentrate has been continued. In 1980's, the government-run lead company

transferred CMASA to a holding company FLUOR. Actually, this company is in possession of a joint

adventure of COMSUR (66.6%) and Rio Tinto Zinc Company (33.3%).

5) Geology and tectonics

In geology of Aguilar Mountains, the northern part of mountain range bordered by Portillo

Grande valley is shown in a geological map "La Quiaca" with a scale of 1 to 250,000, and the middle

southern part of the mountain range including Aguilar deposits is shown in a geological map “Ciudad

de Libertador General San Martin" with the same scale.

According to these geological maps, Acoite Formation in the upper part of Ordovician system

Santa Victoria Group is distributed in the northern part of the mountain range. The middle southern

part of the mountain range is mainly occupied by Santa Victoria Group (no division). Intrusive rock

bodies called Aguilar and Abra Laite granite that is estimated to have been formed during Cretaceous

and Jurassic Periods are distributed on both sides of east and west of Aguilar deposits. Santa Victoria

Group in the vicinity of Aguilar granite on east side is especially discriminated to Guayoc Chico

Formation (corresponding to the lower part of Santa Victoria Group). All lowlands are covered with

alluvial deposits.

Regarding the central part of Aguilar Mountains, a geological map (Scale: about 1 to 125,000

and made in Aguilar mine) which was inserted in Sureda J.R. (1999) is available.

According to Sureda R.J. (1999), Ordovician system geological stratigraphy consists of

Despensa layer, Padrioc formation, Lampazar formation and Cardonal formation corresponding to the

- 179 -

lower part of the Tremadocian, and Acoite Formation and Sepulturas layer corresponding to the

Arenig, from below. Aguilar quartzite layer or Aguilar Quartzite (Spencer 1950) is a metamorphic unit

in the Cretaceous, and it is assumed that the sedimentary rock of the relevant source rock is Padrioc

formation.

Based on some facts obtained from explorations conducted as part of the geological map-

drawing project of SEGEMAR, Seggiaro R. (in preparation) proposes re-composition of geological

stratigraphy in this zone and is making a new geological map.

Stratum that hosts SEDEX deposits has so far been assumed in between Cambrian uppermost

part and Lampazar formation of the lowest part of Tremadocian formation. However, in the

sedimentary rocks of the Rio Grande valley assumed to be this Lampazar formation, the existence of

the fossil from the lower part of Tremadocian series to their central part was identified. (Martin, 1989

and Rao and Flores, 1998) And the stratum from the lower part to the central part of Tremadocian

series in the east part mountain range is called Saladillo formation (Moya et al, 2000 and Malanca,

2002). For the above reasons, it has been so decided in this area that conventional Lampazar formation

is now called Saladillo formation based on this fossil stratigraphy. Furthermore, it is proposed to

include quartzite (Acenolasa 1968) that was so far included in Padrioc formation in the lower part of

Lampazar formation into Cardonal formation that is further upper position. In this connection, it is

proposed that the conventional Aguilar quartzite in the open-cut mining area in the Aguilar mine be

included in the Cardonal formation because it is positioned in the lower part of the Saladillo

conglomerate.

In addition, because olistostrome is recognized in the Saladillo formation, Seggiaro R. (in

preparation) points out that a tensile fault that acts key role as a pipe of ore-forming fluid of SEDEX

ore deposits exists in the Rio Grande valley and the Despensa valley, and describes as follows. In other

words, “Saladillo formation in the vicinity of boundary with Cardonal formation contains rounded

quartzite and is multi-source conglomerate layer consisting of the fragment etc. of squarish, black

shale. Meanwhile, in the Rio Grande valley and the Despensa valley, rubble of quartzite, olistostrome,

landslides and slumping structure are observed. Olistolith is massive rocks that slipped from the lower

plate side block of the normal fault in the Saladillo formation sedimentary basin. It was caused as an

immediate result of the tensile fault. Economical importance of the discovery tensile fault formed at

the same time as this Saladillo formation's development should be noteworthy. These faults became a

pipe for discharging the ore-forming fluid that turned out to be the SEDEX source of Aguilar deposits

(Pb, Ag, Zn).”

Thus, in spite of this complex geological structure, because a reasonable interpretation of the

field observation result is possible, it was decided in this report, to use this geological map under

preparation (see Fig.II-4-2-1-2) with the consent of Mr. Seggiaro R.

- 180 -

6) Mineralization and alteration

In Aguilar Mountains area, mineral showings such as Candelaria, Pozo Bravo, Rio Grande,

Zarzo, Hueco, Pirita, Oriental, Tapada, and Despensa exist from the north besides El Aguilar and

Esperanza deposits in operation now. Candelaria is a small-scale abandoned mining site and is

composed of galena and zincblende quartz vein with a maximum width of about 10cm hosted in

Acoite formation (confirmed in the first phase survey). Mineral showings other than this Candelaria

are located around the vicinity of both El Aguilar and Esperanza ore deposits (see Fig.II-4-2-1-3).

The El Aguilar deposits are hosted in the meta-quartzite and holnfels in the Cardonal

formation (so far called Aguilar quartzite) with a layer thickness of 200m and are composed of ten

stratiforms of Pb - Zn ore bodies with a scale of an average length of 150 to 1000m, 50 to 300m in

width, and 5 to 80m in thickness. The Aguilar quartzite (according to the result of microscopic

examination of sample A02CX021, metamorphic chart or quartzite which consists of a large amount

of quartz and an small amount of muscovite and a negligible amount of opaque minerals) is formed

from the Cardonal formation that was metamorphosed by the intrusion of Abra Laite granite and

Aguilar granite (according to the microscopic examination of the sample A02CX020, this is

amphibole-granodiorite or Complejo Eruptive Oire with sericite of negligible amount as altered

minerals).

Esperanza deposits in the Saladillo formation (conventional Lampazar formation) consists of

the main manto-type ore body of 350m in total length, 130m in width in the E-W direction, 27°W in

dip and 18m in the maximum, and two ore bodies accompanying the lower part of this stratigraphy.

In the first phase survey, the main ore bodies were observed at the adit 4,577m above sea level

and samples were collected. Microscopic examination of the ore (A01RT059) shows the state of

production of bedded sulfide ore, indicating that the ore consists mainly of zincblende and galena

containing a small amount of chalcopyrite and a very small amount of pyrite. It further presents a clear

lamination structure that almost harmonized with sedimentary structure as long- flaky sericite did.

At about 200m north extension part from the open-cut mining site of this main ore bodies, SEDEX-

type galena and zincblende stratiform ore bodies (about 1.0m thick layer), shale immediately above

that and phyllite quality Slate at the lower part were collected and analyzed (see Fig.II-4-2-1-4). The

geochemical analysis values of three samples are compared, and the elements with the maximum

values were enumerated respectively. The elements with values more than ten times of the minimum

value were shown in bold type.

Upper part shale (A02CX008) :As, Be, Ca, Cr, Cu, P, Sr, V

Stratiform ore bodies (A02CX007) :Au, Hg, Ag, Cd, Fe, Mn, Pb, S, Sb, W, Zn

Slate (A02SX016) :Al, Ba, Co, K, Mg, Na, Ni, Ti

- 181 -

- 182 -

Fig.II-4-2-1-4 Location and photos of the Esperanza outcrop in the Aguilar range area

- 183 -

Pozo Bravo is located about 7km north-northwest of Esperanza deposits, most upper-stream of

Quera river on the west side of Aguilar Mountains, and is vein-type lead and zinc deposits hosted in

Acoite Formation. (Sureda,1999)｡

Rio Grande, located about 3km northeast of Esperanza deposits and midstream of Rio Grande

valley, is massive pyrrhotite layers with a maximum width of about 20cm, confirmed in the Saladillo

formation (previously Lampazar formation). It is immediately above the stromatolite layer in a bedded

black shale, and with a strike of N30°W and a dip of 15°SW. In the first phase survey, these

mineralized horizons are confirmed at least 150m in length in the inclined direction. Although the

mineralization is similar to that of Mina Esperanza deposits and drilling was carried out, a final

conclusion was obtained that it is not profitable.

Zarzo is located in the most upper-stream of the north side branch of the Rio Grande on the

west side of Aguilar Mountains, about 1km west of Esperanza deposits, and is bedded deposits hosted

in the Saladillo formation. In general, it is considered to correspond to the extension of the west side of

Esperanza deposits with the synclinal structure of N - S direction in between.

Hueco is located about 2km south-southwest of Esperanza deposits and at the most upper-

stream of Rio Grande south branch of Westside of Aguilar Mountains. It is vein-type lead/zinc

deposits hosted in the Cardonal formation. (Sureda 1999)

Pirita, located about 2.5km south of Esperanza deposits, is a mineral showing zone (area of

about 1km2) that is hosted in the Saladillo formation. According to Figure 3 of Sureda (1999), El

Aguilar-Oriental-Pirita is assumed to be a series of bedded deposits. Rincon is one stratiform ore

bodies in this mineral showing zone, and is located about 4km south of Esperanza deposits. Strike and

dip of the ore bodies apparently shows the form of harmonized bedded deposits with the bedding plane

(N10E/50W). The hanging-wall side ore bodies (about 1.0m in layer thickness) are massive quartz's

(Zn grade of about 7%) accompanied by pyrrhotite and zincblende, and ore bodies (layer thickness of

about 1.5m) on the foot side is massive quartzes (Zn grade of about 7%) accompanied by pyrite

impregnation (see Fig.II-4-2-1-5).

As is the case with Esperanza deposits outcrop, geochemical analysis values were compared

with those of the shale of the upper part ore bodies, hanging wall side ore bodies and the lower part

shale, and each element with the highest value was enumerated. The elements with values of ten times

larger than the minimum value were shown in bold type.

Upper part shale (A02CX009) :Al, Ba, Be, K, Mg, Mn, Na, P, Sr, Ti, V

Hanging wall side ore bodies (A02CX011) :Au, Hg, Ag, As, Bi, Cd, Co, Cu, Fe, Mo, Ni,

Pb, S, Sb, W, Zn

Lower part shale (A02CX010) :Ca, Cr

- 184 -

Fig.II-4-2-1-5 Location and photos of the Rincon mineral showing in the Aguilar range area

- 185 -

Oriental is located about 1km south of Rincon and about 1.5km north- northeast of El Aguilar

open-cut mining pit, and is stratiform ore bodies (layer thickness of about 2m, with average Pb: 7%,

and Zn: 6%) in the Cardonal formation sandstone which received metamorphism, and is brecciated ore

bodies of average grade of Pb:7% and Zn:6% accompanied by macro crystals of galena and

zincblende (see Fig.II-4-2-1-6).

As is the case with Rincon, the geochemical analysis values are compared with those of

sandstone (according to microscopic examination, altered fine-grain sandstone～siltstone that consists

mainly of quartz, biotite, and feldspar grain) of the upper part of the ore bodies, metamorphic

sandstone of brecciated ore bodies and lower part. Thus, the elements each having a highest value was

enumerated. Further, the elements with values ten times or larger than the minimum value were shown

in bold type.

Upper part sandstone(A02SX006) :Al, Ba, Be, Cr, K, Na, Ni, Sr, Ti

Brecciated ore bodies(A02CX012) :Au, Hg, Ag, As, Bi, Ca, Cd, Co, Cu, Fe, Mg,

Mn, Mo, P, Pb, S,Sb, V, W, Zn

Lower part metamorphic sandstone (A02SX005) :None

Tapada is a small-scale abandoned mining site, located about 3km south of the El Aguilar

open-cut mining site. This is silver-galena brecciated ore bodies harmoniously hosted in the bedding

of the Saladillo formation sandstone of wall rock. There are hanging wall ore bodies with a layer of

0.3m+ thick (altitude 4,719m; see Fig.II-4-2-1-7.) and foot wall ore bodies (altitude of 4,646m)

prospected by drift at the interior of a cross cut of about 20m from the entrances of adits.

Despensa accompanies hammock-like stromatolite with a short diameter of about 20cm in

bedded black shale that admixes limonite breccia thin layer (about 5cm thick) (see Fig.II-4-2-1-8).

Automorphic pyrite(maximum diameter of 2cm)is accompanied scattered in this stromatolite. This

Despensa mineral showings, even of a small-scale, is similar to Rio Grande mineral showings in the

existence of bedded black shale, stromatolite, and iron sulphide etc.

7) Geochemical characteristics

Using samples in Saladillo formation (conventional Lampazar formation) that is horizon

hosted deposits, Discriminant analysis (DA) was carried out as a supervised classification method out

of the multivariate analysis technique, and principal component analysis (PCA) was carried out as an

unsupervised classification method.

The analytical data used are those of 72 samples in total of the cores taken from drilling #3070

hole that captured the SEDEX ore bodies (Refer to Table II-4-2-1-1).

- 186 -

Fig.II-4-2-1-6 Location and photos of the Oriental mineral showing in the Aguilar range area

- 187 -

Fig.II-4-2-1-7 Photos of the Tapada mineral showing in the Aguilar range area

- 188 -

Fig.II-4-2-1-8 Photos of the Despensa mineral showing in the Aguilar range area

- 189 -

Elements for analysis are Au, Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo,

Na, Ni, P, Pb, S, Sb, Sr, Ti, V, W, Zn and Hg, 29 elements in total.

Data pre-processing etc, prior to the statistical analysis are omitted because it will be fully

explained later in paragraph 4-3-1(1) "Integrated geochemical analysis".

Discriminant analysis (DA)

The results of grouping by the Discriminant analysis are shown in Table II-4-2-1-2, including

location of each samples collected, characteristics of the appearance and pre-determined grouping

based on the layer level relation with the ore horizon. At the same time, ten variables (logMn, V, logCa,

Cr, Ti, logSb, Na, Mg, logW, and logSr) that are carefully selected as useful for discrimination, and the

coefficient of each variable to three discriminant functions (Y1-2, Y1-3, and Y2-3) which discriminate

between ore horizon (G2) and hanging wall (G1), between hanging wall (G1) and foot wall (G3), and

between ore horizon (G2) and foot wall (G3), are shown. Therefore, the three discriminant functions

are expressed as follows.

Y1-2=-27.90398XlogMn-0.00244XV+16.82988XlogCa-0.23149XCr-55.95001XTi -

13.69739XlogSb-6.84131XNa+19.45493XMg+27.31680XlogW+10.55409XlogSr+ 64.16628

Y1-3=2.47213XlogMn-0.09387XV-8.14173XlogCa-0.18578XCr+49.30599XTi

+10.82742XlogSb-3.95804XNa-3.33270XMg-28.70279XlogW+8.98198XlogSr+ 0.58989

Y2-3=30.37611XlogMn-0.09144XV-24.97161XlogCa-0.41727XCr+105.25600XTi

+24.52481XlogSb+2.88327XNa-22.78763XMg-56.01958XlogW-1.57211XlogSr- 63.57639

Theoretical error rate is the highest in between hanging wall (G1) and foot wall (G3), while

the rate between deposits horizon (G2) and foot wall (G3) is lower than between ore horizon (G2) and

hanging wall (G1). That is, though the ore horizon and the footwall can be easily discriminated

comparatively, the hanging wall and the hanging wall are difficult to be discriminated.

Although the discriminant rate shows high value (95.83%), in Table II-4-2-1-3 (referred to

earlier), one shale sample (A01AG49) accompanying quartz minute pulse of ore horizon hanging wall

(G1) is misdiscriminated to be foot wall of ore horizon(G3), while two samples (A01AG66 and

A01AG72) of phyllitic shale in foot wall (G3) of ore horizon are both misdiscriminated to be ore

horizon hanging wall (G1).

Discriminant functions were applied to 46 samples collected on the ground surface, and

grouping to presume a layer level relation with the ore horizon was made. The results are shown in

Table II-4-2-1-3 and Fig.II-4-2-1-9.

- 190 -

Tabl

e II-

4-2-

1-1

Che

mic

al a

naly

sis &

DA

resu

lts o

f dril

l cor

e 72

sam

ples

g/t

ppm

%pp

mpp

mpp

mpp

m%

ppm

ppm

ppm

ppm

%%

%pp

mpp

m%

ppm

ppm

ppm

%pp

mpp

m%

ppm

ppm

ppm

ppb

Au

Ag

Al

As

Ba

Be

Bi

Ca

Cd

Co

Cr

Cu

FeK

Mg

Mn

Mo

Na

Ni

PPb

SSb

SrTi

VW

ZnH

g

1A

01A

G01

#307

057

.20m

f.s.s.

0.00

250.

55.

3420

290

2.0

10.

600.

2511

3229

2.57

1.35

0.58

420

0.5

2.1

2372

034

0.40

2.5

231

0.30

385

585

2A

01A

G02

#307

065

.00m

f.s.s.

0.00

250.

254.

7335

180

1.5

10.

570.

259

2721

2.42

0.65

0.67

515

0.5

2.05

2567

020

0.27

2.5

180

0.30

335

745

3A

01A

G03

#307

070

.10m

shal

e0.

0025

0.25

8.27

1440

1030

2.5

10.

400.

2510

775

354.

083.

941.

2356

50.

51.

1514

492

018

0.25

586

0.58

121

514

85

4A

01A

G04

#307

075

.00m

f.s.s.

0.00

250.

258.

9470

1210

2.5

10.

580.

259

738

2.77

4.35

0.88

600

11.

3527

680

180.

012.

513

60.

6112

95

785

5A

01A

G05

#307

081

.70m

f.s.s.

0.00

250.

257.

9835

1080

2.5

10.

430.

2510

7519

3.87

3.76

1.06

800

0.5

0.87

3370

024

0.10

2.5

151

0.56

118

510

45

6A

01A

G06

#307

087

.30m

f.s.s.

0.00

250.

256.

6415

340

2.0

10.

640.

255

4212

2.58

1.45

0.91

690

0.5

2.51

1567

028

0.00

52.

518

00.

3861

515

05

7A

01A

G07

#307

093

.90m

f.s.s.

0.06

50.

259.

5980

1200

3.5

10.

180.

2525

103

394.

544.

771.

1650

00.

50.

3842

500

180.

005

2.5

610.

5913

85

124

58

A01

AG

08#3

070

97.2

0mf.s

.s.0.

005

0.25

5.76

5521

02.

01

0.35

0.25

1340

794.

581.

550.

9030

51

1.27

4778

028

1.34

2.5

101

0.33

625

9622

309

A01

AG

09#3

070

103.

40m

f.s.s.

0.01

00.

258.

8235

1150

3.0

10.

430.

2518

8635

4.70

4.13

1.19

480

0.5

1.04

5352

024

0.42

2.5

112

0.59

135

511

241

010

A01

AG

10#3

070

109.

20m

f.s.s.

0.01

00.

258.

2615

1010

2.5

10.

320.

517

7136

4.11

3.82

1.10

460

0.5

1.08

4447

016

0.39

2.5

112

0.55

109

529

420

011

A01

AG

11#3

070

115.

00m

f.s.s.

0.00

250.

255.

1815

240

1.5

10.

950.

257

3017

2.18

0.79

0.53

465

0.5

2.24

1471

042

0.13

2.5

239

0.34

425

126

320

12A

01A

G12

#307

011

8.50

mf.s

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5

Roc

kSe

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No.

Dril

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calit

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epth

Sam

ple

No.

- 191 -

- 192 -

- 193 -

- 194 -

According to the table and figure, the following four samples are discriminated to ore horizon

(G2) in this zone.

A02CX007: Collected from galena and marmatite stratiform ore bodies of the north extension outcrop

of Esperanza ore bodies. Upper part shale (A02CX008) has been discriminated to ore horizon hanging

wall (G1), and lower Slate (A02SX016) to footwall of ore horizon (G3). An excellent result has been

obtained as shown in the observation results described in the paragraph of mineralization and

alteration.

A02CX017: Collected as a set with A02CX018 and A02CX019 from mineralization outcrop (Refer to

Fig.II-4-2-1-10) along the mining road about 1km northeast of Oriental. The sample of A02CX017 is

shale (apparently un-mineralized) immediately above the mineralization part. Chlorite and Sericite

alteration part (A02CX018) adjoining this shale are discriminated to footwall of ore horizon(G3).

Silicified rocks (A02CX019) accompanying pyrite dissemination of the lower part are discriminated to

footwall of ore horizon (G1). These are remarkably different from the observation results.

A02CX020: Aguilar granite collected about 1.5km northeast of the Aguilar open-cut mining site.

Since this discriminant function should be basically applied to Santa Victoria Group Saladillo

formation in horizon hosted deposits, it is not appropriate to evaluate granite.

A02SX015: Quartzite of the Cardonal formation collected in the Despensa valley in the southern part.

The function is not appropriate to evaluate for the same A02CX020.

When taking a general view of the discrimination results in the distribution zone of the

Saladillo formation shown in Fig.II-4-2-1-9 (Referred to earlier), footwall of ore horizon (G3) exists

over the area, from north to south, of Rio Grande, Esperanza, Pirita, Oriental, El Aguilar, Tapada and

Despensa. On the other hand, ore horizon hanging wall (G1) is widely distributed on the west side of

the above listed areas that are Esperanza, Pirita, Oriental, El Aguilar and Tapada. It is, however, not

found in the vicinity of Rio Grande in the north and Despensa in the south.

Principal component analysis (PCA)

The principal component analysis starts with the calculation of statistic and correlation

coefficient matrix. The calculated results and output of statistic and correlation coefficient matrix are

shown in Tables 4-2-1-4 and 5 respectively. The principal component load matrix obtained from this

correlation coefficient matrix is shown in Table II-4-2-1-6, the relation between each principal

component and the element in Fig.II-4-2-1-10. In this Table 4-2-1-4, absolute value of load larger than

- 195 -

Table II-4-2-1-4 Statistics of the drill core 72 samples,Aguilar range area

MeanUnbiased

estimate ofpopulation

Standarddeviation

logAu -2.477 0.139 0.372logAg -0.333 0.249 0.499Al 7.725 2.800 1.673logAs 1.364 0.296 0.544logBa 2.838 0.093 0.306logBe 0.387 0.025 0.158logBi 0.069 0.032 0.178logCa -0.219 0.085 0.292logCd -0.285 0.422 0.650logCo 1.132 0.040 0.200Cr 61.625 437.759 20.923logCu 1.478 0.075 0.274logFe 0.594 0.014 0.118K 2.971 1.419 1.191Mg 1.064 0.066 0.257logMn 2.908 0.168 0.410logMo -0.006 0.147 0.383Na 1.209 0.582 0.763logNi 1.524 0.031 0.177logP 2.796 0.018 0.133logPb 1.754 0.450 0.670logS -0.463 0.307 0.554logSb 0.500 0.094 0.306logSr 2.089 0.060 0.245Ti 0.461 0.013 0.114V 115.958 3486.435 59.046logW 0.707 0.005 0.071logZn 2.269 0.416 0.645logHg 1.336 0.599 0.774

Table II-4-2-1-5 Correlation coefficient matrix of 29 elements for the drill core 72 samples, Aguilar range area

logAu 1.000logAg 0.576 1.000

Al -0.116 -0.299 1.000logAs 0.446 0.277 0.066 1.000logBa -0.235 -0.354 0.541 -0.210logBe 0.050 -0.052 0.694 0.285 1.000logBi -0.113 -0.046 0.050 -0.094 -0.008 1.000logCa -0.036 0.189 -0.286 0.083 0.101 0.047 1.000logCd 0.669 0.770 -0.211 0.439 0.052 -0.061 0.175 1.000logCo 0.157 -0.039 0.420 0.420 0.289 0.079 -0.350 0.040 1.000

Cr -0.183 -0.311 0.776 -0.036 0.524 -0.073 -0.442 -0.323 0.458 1.000logCu 0.402 0.372 -0.042 0.388 0.164 0.011 0.026 0.524 0.424 0.065 1.000logFe 0.371 0.380 0.400 0.382 0.431 -0.029 -0.060 0.401 0.556 0.428 0.677 1.000

K 0.011 -0.171 0.794 0.140 0.448 0.017 -0.591 -0.165 0.517 0.818 0.001 0.438 1.000Mg -0.115 -0.066 0.711 0.151 0.529 0.067 -0.047 -0.039 0.466 0.623 0.269 0.731 0.563 1.000

logMn 0.462 0.589 -0.127 0.467 0.071 -0.077 0.422 0.655 -0.121 -0.268 0.367 0.417 -0.165 0.132 1.000logMo 0.204 0.414 -0.194 0.217 0.105 0.020 0.428 0.385 -0.061 -0.133 0.299 0.170 -0.155 -0.146 0.327 1.000

Na -0.304 -0.277 -0.043 -0.170 0.097 0.021 0.389 -0.236 -0.239 -0.281 -0.291 -0.326 -0.499 -0.044 -0.138 -0.212 1.000logNi -0.019 -0.179 0.642 0.331 0.500 0.076 -0.400 -0.067 0.798 0.639 0.402 0.523 0.657 0.522 -0.146 -0.061 -0.291 1.000logP -0.244 -0.213 -0.116 0.074 0.023 0.167 0.414 -0.185 0.024 -0.273 0.038 -0.154 -0.349 -0.046 -0.044 0.090 0.479 0.016 1.000

logPb 0.615 0.749 -0.282 0.473 0.073 -0.001 0.405 0.857 -0.071 -0.415 0.555 0.413 -0.299 -0.001 0.809 0.415 -0.126 -0.172 -0.041 1.000logS 0.208 0.367 0.025 0.268 0.236 0.006 0.077 0.442 0.357 0.014 0.693 0.569 0.056 0.201 0.263 0.315 -0.258 0.335 -0.034 0.424 1.000

logSb 0.654 0.762 -0.242 0.422 0.020 -0.062 0.150 0.784 0.081 -0.200 0.521 0.394 -0.133 -0.064 0.568 0.347 -0.272 -0.029 -0.277 0.797 0.435 1.000logSr -0.253 -0.109 -0.106 -0.165 0.105 0.037 0.597 -0.114 -0.356 -0.272 -0.192 -0.272 -0.522 -0.057 0.110 0.015 0.752 -0.369 0.311 0.052 -0.219 -0.127 1.000

Ti -0.177 -0.338 0.844 -0.001 0.478 -0.036 -0.345 -0.354 0.409 0.753 -0.140 0.338 0.756 0.616 -0.210 -0.219 -0.036 0.584 -0.101 -0.425 -0.080 -0.312 -0.105 1.000V 0.171 0.126 0.604 0.299 0.524 0.019 -0.067 0.314 0.285 0.440 0.311 0.489 0.511 0.511 0.210 0.070 -0.311 0.558 -0.126 0.192 0.288 0.177 -0.288 0.422 1.000

logW 0.645 0.418 -0.136 0.253 -0.065 -0.047 -0.045 0.525 0.126 -0.226 0.186 0.254 -0.017 -0.113 0.407 0.151 -0.150 -0.181 -0.164 0.452 0.267 0.407 -0.166 -0.148 -0.097 1.000logZn 0.707 0.734 -0.088 0.530 0.162 -0.051 0.217 0.923 0.087 -0.294 0.538 0.476 -0.101 0.061 0.739 0.344 -0.171 0.008 -0.121 0.878 0.421 0.754 -0.033 -0.236 0.339 0.534 1.000logHg 0.447 0.379 -0.329 0.004 -0.161 -0.027 0.047 0.401 -0.063 -0.329 0.287 0.096 -0.286 -0.311 0.086 0.095 -0.025 -0.166 -0.109 0.309 0.322 0.448 0.117 -0.311 -0.137 0.276 0.385 1.000

logAu logAg Al logAs logBe logBi logCa logCd logCo Cr logCu logFe K Mg logMn logMo Na logNi logP logPb logS logSb logSr Ti V logW logZn logHg

- 197～198 -

Table 4-2-1-6 PC (principal component) loading matrix after varimax rotation for the drill core 72 samples , Aguilar range area

PC1 PC2 PC3 PC4 PC5 PC6 PC7 Contributionratio

logAu -0.813 -0.056 -0.192 -0.096 -0.236 -0.083 -0.097 0.783logAg -0.772 -0.138 -0.101 -0.211 0.209 0.183 0.016 0.748

Al 0.131 0.928 -0.028 0.103 -0.134 -0.011 0.036 0.908logAs -0.510 0.162 -0.079 -0.080 0.090 -0.671 -0.160 0.783logBa 0.279 0.543 -0.205 0.471 -0.089 0.079 -0.023 0.651logBe -0.091 0.765 0.244 -0.089 0.106 -0.096 -0.084 0.688logBi 0.050 0.012 0.020 -0.024 0.004 -0.010 0.973 0.950logCa -0.195 -0.168 0.668 0.005 0.555 -0.042 0.047 0.824logCd -0.874 -0.076 -0.050 -0.264 0.142 0.014 -0.011 0.862logCo -0.006 0.469 -0.297 -0.386 -0.293 -0.528 0.077 0.828

Cr 0.302 0.804 -0.303 -0.040 -0.068 0.088 -0.119 0.858logCu -0.375 0.139 -0.115 -0.758 0.156 -0.218 0.020 0.820logFe -0.429 0.621 -0.139 -0.454 0.051 -0.085 0.018 0.805

K 0.087 0.761 -0.532 0.089 -0.165 -0.016 0.009 0.905Mg -0.012 0.845 0.073 -0.122 0.047 -0.050 0.112 0.751

logMn -0.787 0.052 0.146 0.062 0.356 -0.078 -0.023 0.780logMo -0.286 -0.101 -0.042 -0.199 0.655 -0.046 -0.004 0.565

Na 0.200 -0.092 0.874 0.116 -0.204 -0.087 -0.003 0.875logNi 0.156 0.674 -0.312 -0.366 -0.083 -0.395 0.037 0.874logP 0.245 -0.154 0.493 -0.077 0.157 -0.592 0.203 0.749

logPb -0.871 -0.103 0.127 -0.208 0.296 -0.046 0.043 0.921logS -0.283 0.150 -0.104 -0.758 0.162 -0.058 0.024 0.718

logSb -0.783 -0.082 -0.110 -0.331 0.108 0.094 -0.063 0.766logSr 0.061 -0.084 0.903 0.060 0.030 0.142 -0.012 0.850

Ti 0.234 0.828 -0.076 0.166 -0.218 -0.012 -0.049 0.823V -0.226 0.677 -0.182 -0.115 0.261 -0.033 0.029 0.626

logW -0.697 -0.120 -0.111 0.056 -0.352 -0.094 0.040 0.651logZn -0.914 0.043 0.056 -0.225 0.094 -0.072 -0.006 0.905logHg -0.348 -0.316 0.123 -0.551 -0.349 0.312 -0.050 0.762

Sum of loadingsquare 6.680 6.193 3.156 2.650 1.746 1.522 1.084

Contributionrat0io 23.035 21.354 10.883 9.138 6.021 5.249 3.736

Cumulativecontribution

ratio23.035 44.389 55.272 64.410 70.432 75.681 79.417

Integration criterion =0.00001

- 199 -

Fig.

II-4

-2-1

-10

Prin

cipa

l com

pone

nt lo

adin

gs fo

r the

dril

l cor

e 72

sam

ples

, Agu

ilar r

ange

are

a

PC1

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC2

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC3

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC4

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC5

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC6

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

PC7

-1.0

-0.5

0.0

0.5

1.0

logAu

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr Ti V

logW

logZn

logHg

- 200 -

0.5 is shown in bold type. Further the values with plus sign are indicated in red, and those with minus

sign in blue. (Note that the signs are relative to each other. No contradiction will incur in the

interpretation even if all signs are reversed for each principal component.) The discriminated

cumulative contribution rates of the seven principal components show such a high rate as about 80%.

Since the first four principal components (PC1, PC2, and PC3) make up 60% or higher of the

contribution rate, these four principal components can almost explain the characteristics of these

samples of 72 drilling cores.

Principal component scores of each sample calculated by using the principal component loads

are shown in Table II-4-2-1-7, together with their geological descriptions. The characteristics of the

principal components presumed from principal component load matrix and the relations between each

principal component scores and rock type are shown in Table II-4-2-1-8, and the change of each

principal component scores with depth for each drilling hole is shown in Fig.II-4-2-1-11.

In Table II-4-2-1-8, primary principal components (PC1) accounts for the contribution rate of

23%, and show high correlation with Zn, Cd, Pb, Au, Mn, Sb, Ag, W, and As (in descending order of

absolute load value). The majority of these are ordinary elements of the SEDEX-type ore bodies. As

obvious from Fig.II-4-2-1-11, a higher score at the encounter part with Esperanza ore bodies of

drilling cores (A01AG060～63) is obtained in comparison with hanging/foot walls. Therefore these

elements are considered to be for SEDEX mineralization.

Secondary principal components (PC2) accounts for the contribution rate of 21.4%, and show

a high correlation with Al, Mg, Ti, Cr, Be, K, V, Ni, Fe, and Ba (in descending order of load). This

principal components are presumed to be elements that show a certain kind of characteristics (for

instance, grain size) of clastic rocks because, as is clear in Table II-4-2-1-7, there is a tendency that

arenite indicates a high plus score and muddy rock a high minus score.

Tertiary principal components (PC3) show high correlations with Sr, Na, Ca and K and are

presumed to be elements that show a composition of rocks (especially, feldspar). Fourth principal

components (PC4) show high correlation with Cu, S, and Hg, and are presumed to be elements

associated with the hydrothermal deposit at a comparatively low temperature. Because the

contribution rates of these elements are low at about 10%, it is considered that the influence to the data

variation is low.

8) Characteristics of the satellite image

In ASTER image analysis, false color BGR=147 (hereinafter 147) image identified granite in

Aguilar range as weak red in color, and Ordovician sediments in dark color. The image also identified

sedimentary structure with N-S direction. For alteration mineral identification, ASTER detected Ser-

Geo zone in the boundary area of granite and sedimentary rocks, and Ser-Chl and Chl zone in

sedimentary rocks with N-S in direction.

- 201 -

Table II-4-2-1-7 PC scores and descriptions for the drill core 72 samples, Aguilar range areaSample No. Drill hole # and depth District Locality Rock PC1 PC2 PC3 PC4 PC5 PC6 PC7A01AG01 Drill hole #3070, 57.2m Aguilar Mina Esperanza f.s.s. 1.588 -4.095 1.102 -0.133 -0.438 -0.848 -0.559A01AG02 Drill hole #3070, 65.0m Aguilar Mina Esperanza f.s.s. 1.651 -4.989 0.731 0.253 -0.441 -1.212 -0.619A01AG03 Drill hole #3070, 70.1m Aguilar Mina Esperanza shale 1.090 1.392 -1.227 -0.552 -1.573 -5.433 -0.630A01AG04 Drill hole #3070, 75.0m Aguilar Mina Esperanza f.s.s. 0.004 0.754 -0.147 4.333 -0.046 -0.592 -0.617A01AG05 Drill hole #3070, 81.7m Aguilar Mina Esperanza f.s.s. 0.532 0.877 -0.232 1.835 -0.140 -0.298 -0.466A01AG06 Drill hole #3070, 87.3m Aguilar Mina Esperanza f.s.s. -0.098 -2.579 1.883 3.533 -0.495 0.171 -0.437A01AG07 Drill hole #3070, 93.9m Aguilar Mina Esperanza f.s.s. -1.517 2.367 -2.443 2.741 -2.205 -1.422 -0.790A01AG08 Drill hole #3070, 97.2m Aguilar Mina Esperanza f.s.s. 1.989 -3.270 0.046 -4.272 -1.490 -0.841 -0.696A01AG09 Drill hole #3070, 103.4m Aguilar Mina Esperanza f.s.s. 0.265 2.140 -0.141 -1.144 -1.999 0.376 -0.712A01AG10 Drill hole #3070, 109.2m Aguilar Mina Esperanza f.s.s. 0.057 0.933 -0.469 -0.898 -2.147 0.692 -0.565A01AG11 Drill hole #3070, 115.0m Aguilar Mina Esperanza f.s.s. 0.939 -4.918 2.143 0.172 -1.166 0.506 -0.618A01AG12 Drill hole #3070, 118.5m Aguilar Mina Esperanza f.s.s. with py. diss. 2.008 -5.301 1.550 -2.068 -1.296 0.424 -0.576A01AG13 Drill hole #3070, 124.6m Aguilar Mina Esperanza f.s.s. 0.878 1.151 -0.066 -0.434 -1.565 0.476 -0.774A01AG14 Drill hole #3070, 130.45mAguilar Mina Esperanza f.s.s. 0.836 -0.656 0.639 -2.494 -1.535 -1.278 -0.104A01AG15 Drill hole #3070, 133.7m Aguilar Mina Esperanza f.s.s. 0.363 -6.807 -0.999 2.749 -0.995 1.660 1.769A01AG16 Drill hole #3070, 140.6m Aguilar Mina Esperanza f.s.s. 1.078 -6.130 1.049 -0.409 -0.798 1.134 1.567A01AG17 Drill hole #3070, 146.7m Aguilar Mina Esperanza f.s.s. with py. diss. 0.971 -0.215 2.753 -1.743 -1.740 0.076 3.856A01AG18 Drill hole #3070, 152.7m Aguilar Mina Esperanza f.s.s. 1.653 1.517 0.824 -2.483 -1.581 0.218 -0.174A01AG19 Drill hole #3070, 155.7m Aguilar Mina Esperanza shale with py. diss. 1.145 0.845 -1.566 -0.373 -0.954 0.614 -0.577A01AG20 Drill hole #3070, 163.65mAguilar Mina Esperanza shale with py. diss. -0.241 2.012 3.983 -0.382 0.894 0.627 -0.152A01AG21 Drill hole #3070, 169.75mAguilar Mina Esperanza shale with py. diss. 1.092 2.930 -0.790 -1.056 -1.482 0.972 -0.390A01AG22 Drill hole #3070, 175.0m Aguilar Mina Esperanza shale with po. diss. 0.802 3.095 -0.886 -0.395 -1.073 0.752 -0.418A01AG23 Drill hole #3070, 178.9m Aguilar Mina Esperanza shale with py. diss. 2.213 1.282 -2.724 -0.685 -1.011 1.683 -0.389A01AG24 Drill hole #3070, 188.0m Aguilar Mina Esperanza shale with py. diss. 1.571 0.165 0.506 -0.359 -0.248 0.132 -0.555A01AG25 Drill hole #3070, 191.05mAguilar Mina Esperanza f.s.s. with py. diss. 1.070 -0.341 1.872 -0.130 -1.435 0.145 -0.466A01AG26 Drill hole #3070, 196.25mAguilar Mina Esperanza shale with py. diss. 0.698 2.751 -0.893 -0.758 -1.117 1.739 -0.144A01AG27 Drill hole #3070, 199.3m Aguilar Mina Esperanza shale with py. diss. 1.478 0.160 0.934 -0.546 -1.134 0.736 -0.318A01AG28 Drill hole #3070, 205.4m Aguilar Mina Esperanza f.s.s. with py. diss. 0.824 -1.387 -0.674 -0.137 -0.923 1.675 3.153A01AG29 Drill hole #3070, 211.5m Aguilar Mina Esperanza f.s.s. with py. diss. 1.748 -0.777 -0.268 -0.946 0.506 0.614 -0.403A01AG30 Drill hole #3070, 217.6m Aguilar Mina Esperanza f.s.s. 1.270 0.054 -2.121 -0.177 -0.262 1.933 -0.328A01AG31 Drill hole #3070, 220.7m Aguilar Mina Esperanza shale with py. diss. 0.813 2.651 0.010 -0.330 -0.252 1.498 -0.776A01AG32 Drill hole #3070, 224.5m Aguilar Mina Esperanza shale with py. diss. 1.364 0.926 -1.204 -0.967 -0.577 -0.201 -0.683A01AG33 Drill hole #3070, 233.0m Aguilar Mina Esperanza shale with py. diss. 1.284 0.045 -0.945 0.432 0.944 1.379 -0.133A01AG34 Drill hole #3070, 239.0m Aguilar Mina Esperanza shale with py. diss. 1.835 -3.193 -0.941 -0.478 1.023 1.751 -0.337A01AG35 Drill hole #3070, 242.6m Aguilar Mina Esperanza shale with veinlets 0.092 -0.813 -1.325 3.326 -0.238 1.298 -0.243A01AG36 Drill hole #3070, 248.4m Aguilar Mina Esperanza shale with veinlets/py. 1.344 -2.900 -1.485 1.294 0.472 -0.719 -0.467A01AG37 Drill hole #3070, 253.4m Aguilar Mina Esperanza f.s.s. 1.057 -4.257 0.004 0.325 2.460 -0.982 -0.498A01AG38 Drill hole #3070, 260.5m Aguilar Mina Esperanza phyllitic shale -2.367 1.280 1.382 2.188 1.481 1.398 -0.520A01AG39 Drill hole #3070, 265.1m Aguilar Mina Esperanza shale 0.574 -0.292 -0.323 -0.111 0.489 0.926 -0.221A01AG40 Drill hole #3070, 273.45mAguilar Mina Esperanza phyllitic shale 1.935 -0.344 -1.976 -0.515 1.827 -0.235 1.197A01AG41 Drill hole #3070, 276.5m Aguilar Mina Esperanza phyllitic shale with a few py. diss. 1.370 0.239 -2.215 -0.991 1.930 0.075 -0.896A01AG42 Drill hole #3070, 282.1m Aguilar Mina Esperanza phyllitic shale with a few py. diss. 0.259 -2.632 -1.722 -0.749 2.259 -1.457 -0.341A01AG43 Drill hole #3070, 288.7m Aguilar Mina Esperanza shale with veinlets/py. -2.490 1.475 1.002 -2.462 1.526 1.982 -0.197A01AG44 Drill hole #3070, 291.5m Aguilar Mina Esperanza f.s.s. -0.153 -3.880 -2.181 -0.889 2.286 -1.401 1.408A01AG45 Drill hole #3070, 297.3m Aguilar Mina Esperanza shale -0.245 0.200 3.141 1.793 1.774 2.288 -0.614A01AG46 Drill hole #3070, 303.0m Aguilar Mina Esperanza phyllitic shale with py. -0.134 2.631 -2.150 0.735 0.228 0.214 -0.828A01AG47 Drill hole #3070, 305.8m Aguilar Mina Esperanza f.s.s. 1.100 -2.521 -2.466 0.382 1.817 -0.531 -0.394A01AG48 Drill hole #3070, 312.15mAguilar Mina Esperanza shale 0.127 4.105 -1.462 0.613 0.644 -0.439 1.511A01AG49 Drill hole #3070, 318.0m Aguilar Mina Esperanza shale with veinlets -1.880 2.996 5.798 2.129 -0.330 0.189 0.965A01AG50 Drill hole #3070, 321.0m Aguilar Mina Esperanza shale with veinlets 0.312 3.924 -0.537 0.273 0.150 -0.424 1.656A01AG51 Drill hole #3070, 327.2m Aguilar Mina Esperanza shale with py. diss. -0.006 -2.033 -0.745 -0.366 1.447 -2.340 1.258A01AG52 Drill hole #3070, 331.95mAguilar Mina Esperanza shale with py. diss. 0.133 1.940 -0.662 -0.421 0.504 -1.123 -0.384A01AG53 Drill hole #3070, 337.45mAguilar Mina Esperanza phyllitic shale -0.106 3.282 -0.480 -0.277 0.622 -0.880 4.573A01AG54 Drill hole #3070, 343.55mAguilar Mina Esperanza f.s.s. 0.117 0.817 2.237 1.371 -0.104 -0.236 -0.426A01AG55 Drill hole #3070, 346.6m Aguilar Mina Esperanza phyllitic shale 0.337 1.682 -0.659 -0.772 0.117 -0.378 -0.063A01AG56 Drill hole #3070, 354.25mAguilar Mina Esperanza phyllitic shale -0.312 0.267 -0.238 2.503 0.237 -0.931 -0.189A01AG57 Drill hole #3070, 358.8m Aguilar Mina Esperanza shale 0.192 -0.291 2.217 2.095 -0.359 -0.670 -0.363A01AG58 Drill hole #3070, 361.85mAguilar Mina Esperanza shale 0.329 -1.442 1.624 2.056 -0.299 -0.086 -0.248A01AG59 Drill hole #3070, 366.9m Aguilar Mina Esperanza phyllitic shale with py. diss. -1.310 1.269 -0.467 1.785 0.075 -0.487 -0.351A01AG60 Drill hole #3070, 372.65mAguilar Mina Esperanza Pb-Zn ore zone with py. -2.753 -0.413 0.554 2.121 1.337 -0.664 0.054A01AG61 Drill hole #3070, 378.4m Aguilar Mina Esperanza Pb-Zn ore with shale -15.189 -2.509 -1.663 0.765 -3.921 -0.976 0.353A01AG62 Drill hole #3070, 384.8m Aguilar Mina Esperanza Pb-Zn ore zone with py. -9.670 -0.901 0.143 -2.558 3.613 1.691 -0.687A01AG63 Drill hole #3070, 390.0m Aguilar Mina Esperanza Pb-Zn ore zone with py. -7.689 -1.230 0.366 -4.601 0.178 0.001 -0.576A01AG64 Drill hole #3070, 393.05mAguilar Mina Esperanza shale with veinlets/py. -1.501 1.939 2.888 -0.892 1.320 -0.678 -0.467A01AG65 Drill hole #3070, 394.05mAguilar Mina Esperanza phyllitic shale -1.172 1.369 -1.720 0.814 0.412 -0.765 -0.215A01AG66 Drill hole #3070, 399.4m Aguilar Mina Esperanza phyllitic shale -0.303 0.830 -1.881 0.876 0.207 -0.389 -0.145A01AG67 Drill hole #3070, 403.3m Aguilar Mina Esperanza phyllitic shale 1.185 1.785 5.201 -1.322 1.595 -3.083 -0.188A01AG68 Drill hole #3070, 408.8m Aguilar Mina Esperanza phyllitic shale -0.119 2.873 -1.760 0.360 0.474 0.437 1.524A01AG69 Drill hole #3070, 415.6m Aguilar Mina Esperanza phyllitic shale -0.285 1.925 -2.204 -0.770 1.731 0.213 -0.175A01AG70 Drill hole #3070, 421.55mAguilar Mina Esperanza phyllitic shale 1.399 2.515 1.072 -0.892 0.652 0.091 -0.019A01AG71 Drill hole #3070, 428.1m Aguilar Mina Esperanza phyllitic shale 1.108 2.860 2.396 -0.487 0.655 -0.462 -0.533A01AG72 Drill hole #3070, 434.2m Aguilar Mina Esperanza phyllitic shale 1.467 0.871 -0.999 -0.428 -0.519 -0.321 -0.193

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AG

54

A01

AG

55

A01

AG

56

A01

AG

57

A01

AG

58

A01

AG

59

A01

AG

60

A01

AG

61

A01

AG

62

A01

AG

63

A01

AG

64

A01

AG

65

A01

AG

66

A01

AG

67

A01

AG

68

A01

AG

69

A01

AG

70

A01

AG

71

A01

AG

72

-2.0

0-1

.00

0.00

1.00

2.00

3.00

4.00

5.00

- 204 -

9) Survey results and comments

(Characteristics of mineralization in Aguilar mine zone)

In Table II-4-2-1-8, primary principal components (PC1) account for the contribution rate of

23%, and they are highly correlated with Zn, Cd, Pb, Au, Mn, Sb, Ag, W, and As (in descending order

of load absolute value). The greater part of these elements is ordinary ones in the SEDEX-type ore

bodies. As obvious from Fig.II-4-2-1-11, it is presumed that these are elements of SEDEX

mineralization, because the high score is clearly shown at an encounter parts (A01AG060-63) of

drilling cores of Esperanza ore bodies when compared with those of hanging/foot walls

In Aguilar Mountain range area, not only in Esperanza deposits which is assumed to be a

typical model of SEDEX deposits, but also in Aguilar deposits, Oriental mineral showings, and Pirita

mineral showings, a high score distribution of these secondary principal components show

geochemically the existence of this SEDEX-type mineralization. However, in Rio Grande mineral

showings located about 3km northeast of Esperanza deposits that are thought to be a similar SEDEX

mineralization, no high score of these secondary principal components has been obtained contrary to

our expectations.

In Aguilar deposits and mineral showings in the periphery, mineralization represented by La

Colorada deposits exists while overlapping with that of SEDEX. However, from the result of this

principal component analysis of 197 samples, no such mineralization is observed in Esperanza ore

bodies. No high score of secondary principal components that indicate SEDEX mineralization are not

identified neither in Rio Grande mineral showings at northeast of Esperanza deposits which were

thought to be SEDEX mineralization in the past, nor in Despensa mineral showings which are similar

to Rio Grande, though of very small-scale, located about 4km southeast of Tapada. Nonetheless, a high

score of this principal component exist in these mineral showings.

·In Aguilar Mountain range zone, it was clarified that SEDEX mineralization contributed not only to

Esperanza deposits which is assumed to be a typical model of SEDEX deposits, but also to Aguilar

deposits, Oriental mineral showings, and Pirita mineral showings.

·In Aguilar deposits and mineral showings in the periphery other than Esperanza deposits, it turned

out that mineralization represented by La Colorada deposits exist while overlapping with SEDEX

mineralization.

·On the other hand, it was found that Rio Grande mineral showings in the neighborhood of northwest

of Esperanza deposits, previously thought to be similar to SEDEX mineralization, had relationship

with mineralization represented by La Colorada deposits rather than with SEDEX mineralization,

contrary to our expectations.

- 205 -

(2) Pumahuasi district


This district, called PMD (Pumahuasi Mining District), is near the Bolivian border, ranging

from La Quiaca town to Cangrejillo village, which is about 40km south of that town. In this district,

there are many adits of small-scale abandoned mines such as Pumahuasi, La Belgica, Sol de Mayo,

etc., where they once mined the vein deposits of lead, zinc, and barite. These mines are not far from

highways and access is easy.

2) Contents of Survey

According to the existing data, this district is located in the Acoite Formation, the upper layer

of Santa Victoria Group, and therefore, it is highly unlikely that the SEDEX deposit horizon is

exposed. Seven samples were extracted just for reference use (see Fig.II-4-2-1-12).


Mining concessions are widely covered in this area.


At the beginning of the 20th century: Mining activities were started at Pumahuasi.

1920: Mining was started at Sol de Mayo.

Around 1937: Production at Pumahuasi.

1940 - 1941: Production of 6,000 t lead concentrates At Sol de Mayo.

1978 - 1979: The DGFM (Direccion General de Fabricaciones Militares) carried out the

geological survey, geophysical exploration (electromagnetics, IP, and specific resistivity) and

drilling in PMD. Based on the geophysical exploration, four holes were drilled in Belgica. At

three of them, zincblende impregnation was captured (DGFM, 1980b).

1993 - 1994: Based on a hypothesis that Pb-Zn-Ag mineralization in the PMD could represent

the northern extension of SEDEX-type zinc and lead deposits in El Aguilar, Argentina Mineral

Development S.A carried out detailed geological, geochemical and IP electrical exploration.

The drilling was proposed as the only method to confirm the presence of massive sulfide

deposits (Argentina Mineral Development S.A., 1994).


According to the geological map " La Quiaca " with a scale of 1 to 250,000, the greater part of

this district is covered with the alluvial and lake-bottom sediments of Tertiary Pliocene - Quaternary

Alluvial epoch. The Paleozoic Ordovician system, which is exposed mainly at the southeast part,

consists of the Acoite formation of upper layer of Santa Victoria Group. Ordovician system is exposed

- 206 -

- 207 -

scatteredly, and its weathered alteration is remarkable, and therefore, the detailed structure is not clear

(see Fig.II-4-2-1-12 referred to earlier).


In the Pumahuasi district, they once mined the deposits on a small scale, such as Pumahuasi,

Sol de Mayo, La Belgica-Alejandro etc. These deposits were surveyed in the 1st year of the project.

The Pumahuasi deposit consists of two main veins that are called Pumahuasi Viejo and Pumahuasi

Nueva. The ores collected from the place near the ground surface are cerussite, anglesite and limonite.

In the lower part, galena is dominant (Pb:14%, Zn:1%). Pb starts to decrease at a depth of about 250m,

and accompanies Zn of 35% at maximum at a depth of around 350m. The deposit is located along the

river flowing in flat Pampas, and its only remaining structures are a vein trench, two vertical shafts, a

building foundation, and a large-scale debris-piling site.

At the Sol de Mayo deposit, two almost parallel veins about 250m apart are observed;

"Matadero" in the northern part and "Sol de Mayo" in the southern part. As underground mining was

carried out at these veins and they are submerged in water now, it is impossible to investigate.

Matadero vein has a total length of 120m, and the main vertical shaft reaches the depth of 150m. The

most dominant mineralization is shown in zincblende and galena followed by chalcopyrite.

La Belgica deposit and Alejandro deposit adjoin mutually, and both veins run almost in the E-

W direction, which is perpendicular to stratum strike (the N-S direction). Main minerals are galena,

zincblende, iron pyrite, chalcopyrite, limonite, cerussite and anglesite. Barite, ankerite, quartz, and

limonite exist as gangue mineral.


The discriminant functions were built on the basis of the analytical data of 72 drilling core

samples of the Aguilar district, and they were applied to seven samples collected and analyzed in this

district. The discrimination result is shown in Table II-4-2-1-9 and Fig.II-4-2-1-13. According to the

table and figure, all the seven samples come from the bedded shale belonging to the Acoite Formation

of upper layer of Santa Victoria Group, or bedded shale accompanied by a thin layer of sandstone. In

the discriminant analysis result, they are classified into the category of the hanging-wall layer of

mineralized horizons.

Two samples from the bedded shale in the waste of Pumahuasi mining site and the bedded

shale/sandstone from the northwest of southern part of Morado Mountain are discriminated to the

deposit horizon foot wall (G3). Five other samples are discriminated to the semi-foot wall (G1).


ASTER 147 outlined upper Ordovician sediments with N-S direction and Quaternary, which

- 208 -

- 209 -

- 210 -

covers Ordovician. Mineral identification detected Chl zone of elongated shape in the southern part of

survey area.

(3) Santa Victoria Mountain area


This area is located in the Agua Chilca village at the western foot of the Santa Victoria

Mountains. The route starts from La Quiaca town and goes on State Road No. 5, on unpaved road

along the Casti valley, and on State Road No.69. It takes about one hour by car to reach there.

The Santa Rosa abandoned mine is located at S. Lat. 22°37' 54 " and W. Long. 66°2' 55". It is

located about 50km southeast of La Quiaca and about 40km east of the Pumahuasi mineral showings.

The route starts from La Quiaca town and goes on State Road No. 5 , the unpaved road along the

Quobrada de Casti, then to Agua Chilca, a colony at the western foot of Santa Victoria Mountains. The

place of mineral showings is then reached by going on State Road No. 69 by way of Abra del Condor.

It is about one hour and 45 minutes’ drive.

La Cienaga abandoned mine is located about 20km south-southwest of Santa Victoria town,

about 25km east of the Santa Rosa mineral showings and about 70km southeast of La Quiaca. It takes

about 2 hours to reach the Cienaga from the Santa Rosa by going on a bad mountain path over the

altitude of 4,000m. The access is very bad.

2) Contents of survey

The area that crosses the Santa Victoria Mountains with remarkable structure of N-S direction

was surveyed. This area stretches along State Roads Nos. 5-7, and No. 69. Samples were collected

mainly from Santa Rosita layer, i.e., the outcrop of the lower part of Santa Victoria Group. (see Fig.II-

4-2-1-14.). In order to discover some deposit horizons similar to the SEDEX horizon hosting deposit

whose characteristics on petrology, paleontology and geochemistry are already known, these samples

were subjected to laboratory examinations as follows.


Diffraction X ray analysis: 3


Ore assay: 3


Geochemical analysis 104

Moreover, in order to track the horizon hosted deposits, the characteristics of strata with

SEDEX horizon hosted deposits were clarified by ASTER images.

- 211 -


Mining concessions are covered in old abandon mine area only.


None


According to the geological map " La Quiaca " with a scale of 1/250,000, the geological

stratigraphy of this district is as follows in the ascending order of depth. The Proterozoic Puncoviscana

formation, the Lizoite formation (which is the lower layer of Meson Group of the Middle and Upper

Cambrian), the Campanario formation (which is the middle layer of this Group), the Chalhualmayoc

formation (which is the upper layer of Lizoite), the Santa Rosita formation (which is the lower layer of

the Santa Victoria Group of the late Cambrian to the Middle Ordovician), the Acoite Formation (which

is the upper layer of this Group), the Mecoyita of the late Ordovician, the Lipeon formation of late

Ordovician to the Lower Devonian, Pirgua sublayer group from the Lower Cretaceous to the Upper,

the Santa Balbuena sublayer of the Palaeogene, furthermore, the conglomerate layer of the Pliocene to

the Pleistocene. As intrusive rocks, the granites of the Lower and the Middle Cambrian and the syenite

of the Paleocene etc. are observed.

Among these rocks, the rocks before the Palaeogene are controlled by the fault and fold

configuration in the direction of NNE-SSW～NE-SW. Especially the Santa Rosita layer of Santa

Victoria Group, which is considered to be important as the SEDEX horizon hosting deposit, is

developed and distributed in the extension of this direction, and it is often repeatedly exposed by the

thrust fault (see Fig.II-4-2-1-14 referred to earlier).

In this survey, Rossodus tenuis (Miller and 1980) and Drepanoistodus sp. were identified.

They were found to be mixed with gastropods and brachiopods in the Santa Rosita layer limestone of

the lower layer of Santa Victoria Group near Santa Victoria town. It proved to be Tremadocian Deposit

(absolute age, about 487 - 489 m.y.) of the lower layer of widespread Ordovician system (see Fig.II-4-

2-1-15).


In the Santa Victoria Mountains, there are Pb-Zn-Cu ore deposits such as Santa Rosa, La

Cienaga etc. that were explored on a small scale. These deposits were surveyed in the first year of the

project. The survey results in the first year are extracted as follows.

Santa Rosa

The abandoned mining site shows an inverted-L shape where a 60-m trench in the N50°E

- 212 -

- 213 -

direction crosses a 50-m trench in the N30°W direction. As weathered erosion is significant, the

conditions of the existence of veins in the abandoned mining site are unknown. According to

SEGEMAR (1999), results of mineralization are galena, a small amount of zincblende, chalcopyrite,

and their oxidation mineral. Gangue minerals are only barite and quartz. Silicification and

kaolinization are observed at the edge of wall. The reserve is calculated to be 27,000t (Pb:4%,

Zn:3.5%).

La Cienaga

Three entrances of adits were confirmed at two on the south side and one on the north side of

the valley. With consideration given to the fact that all adits show similar direction of almost N-S and

all veins show similar inclination of westward, it is assumed that these adits were used for mining one

plate of the vein. In an adit on the south side along the valley, stringers (about 20 cm wide) of barite

accompanied by a small amount of malachite are exposed in a small range.


The discriminant functions were built on the basis of the analytical data of drilling core

samples of the Aguilar district, and they were applied to 104 samples that were collected and analyzed

in this district. The discrimination results are shown in Tables 4-2-1-10 and Fig.II-4-2-1-16. According

to the table and figure, the following four samples are discriminated to the deposit horizon (G2) in this

district.

A02CX070: Bedded black shale found in alternation of mica-sandstone and black shale at the west

foot of anticlinal structure at the western part of La Cienaga deposit (see Fig.II-4-2-1-17). Incidentally

the sandstone of mica (A02CX069) is discriminated to the deposit horizon foot wall (G3).

A02CX086: Bedded black shale found along the road about 5km west southeast of La Cienaga deposit

(see Fig.II-4-2-1-17 referred to earlier). The black shale (A02CX085) of the eastern outcrop is

discriminated to the deposit horizon-hanging wall (G1). The fine-grain sandstone of mica of the

western outcrop (A02CX087) is discriminated to the deposit horizon foot wall (G3).

A02CX092: Bedded shale found in alternation of mica-sandstone and bedded black shale, which are

exposed about 2km further west of the above-mentioned A02CX086 (see Fig.II-4-2-1-17 referred to

earlier). Incidentally the sandstone of mica (A02CX091) is discriminated to the deposit horizon foot

wall (G3). The bedded shale (A02CX090) found further eastward of the alternation outcrop is

discriminated to the deposit horizon-hanging wall (G1).

- 214 -

Fig.II-4-2-1-15 Conodont fossil collected in the Santa Victoria mountains area.(see Appendix

DocA1)

- 215 -

- 216 -

- 217 -

- 218 -

A02CX070 (La Cienaga) A02CX069 (La Cienaga)

Micaceous s.s. and black shale Micaceous s.s.

A02CX086 (WSW of La Cienaga) A02CX087 (WSW of La Cienaga) Black shale Micaceous fine s.s.

A02CX092 (2km West of A02CX086) A02CX091 (2km West of A02CX086)

Alternation of micaceous s.s. and shale Micaceous s.s.

A02CX090 (Eest of A02CX092) A02CX090 (Eest of A02CX092) Bedded shale Bedded shale

Fig.II-4-2-1-17 Photos of bedded sandstone and shale outcrops, Santa Victoria mountains area

- 219 -


ASTER 147 indicates the distribution of sedimentary rocks with N-S direction of brown to

light brown in color. Mineral identification detected many of Ser-Goe zone and Kao-Ser zone in

western part of survey area, these alterations are distributed concordance with sedimentary structures.

(4) La Colorada mine area


La Colorada abandoned mine is located at S. Lat. 23°38' 52.6'' and W. Long. 66°17' 26.9'', at

an altitude of 3,577m (abandoned site for open-cut mining at the east side). It is about 65km north of

the San Antonio de los Cobres town. It takes about 1.5 hours by car from the town to the site. The

routes from the town are National Road No. 40 and State Road No. 38. The distance is 68km to be

covered in about 1.5 hours. The roads allow high-speed driving, though not yet paved.

According to Mendez y Mendez (2001), the Limeca mining site is located at S. Lat. 23°41' 09"

and W. Long. 66°20' 35'', and at an altitude of 3,711m. It is located 6km from Cobres colony, and is

reached by driving south for several kilometers on State Road No. 38, branching westward, then on

foot.

2) Contents of Survey

The deposit horizon and hanging/foot walls of La Colorada deposit are considered to volcanic

massive sulfide deposit (VMS). In order to clarify petrological, mineralogical and geochemical

characteristics of the deposit, drilling cores kept at Mines Bureau of Salt State were examined in detail

and some samples were collected (see Fig.II-4-2-1-18). The collected samples were subjected to

laboratory examinations as follows.




Ore assay: 15


Further, in order to track a north-south extension of La Colorada deposit, La Colorada

abandoned its neighborhood and mine were surveyed and samples were collected. Mendez y Mendez

(2001) indicated presence of SEDEX-type mineralization in the Limeca mining site, where detailed

examination of the outcrop along the river was made and samples were collected (Fig.II-4-2-1-19).

The collected samples were subjected to laboratory examinations as follows.

- 220 -

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Elevation: 3,504.4m Elevation: 3,493.3m Elevation: 3,498.7m Elevation: 3,498.3m Elevation: 3,501.1mNorth: 7385389 North: 7385246 North: 7385380 North: 7385228 North: 7385427East: 3470499 East: 3470385 East: 3470595 East: 3470213 East: 3470584

Azimth: 306° Azimth: 323° Azimth: 300° Azimth: 334° Azimth: 335°Dip: -60° Dip: -60° Dip: -60° Dip: -60° Dip: -50°

0 Pozo1 Pozo2 Pozo3 Pozo4 Pozo5

Fig.II-4-2-1-18 Sample locations on the columns of the five holes, La Colorada area

*A02PZ508

*A02PZ507

*A02PZ506

*A02PZ505

150

50

*A02PZ101*A02PZ102

100

90

80

70

140

130

190

180

170

160

230

220

210

200

120

110

60

300

290

280

270

260

250

240

10

20

30

40 *A02PZ503

*A02PZ501*A02PZ502

*A02PZ504

*A02PZ301

*A02PZ302

*A02PZ303

160.0m

*A02PZ405*A02PZ404

*A02PZ403

*A02PZ402

*A02PZ401

*A02PZ304

*A02PZ104

*A02PZ105

*A02PZ103

270.05m

215.35m

*A02PZ106

*A02PZ206

*A02PZ205

*A02PZ204

*A02PZ203

*A02PZ202*A02PZ201

248.5m

*A02PZ305

*A02PZ406

*A02PZ509

192.75m

*A02PZ510

*A02PZ511

*A02PZ512

- 221 -

- 222 -




Ore assay: 1




See 4) past survey


1955-56: In La Colorada deposit district, Compana Minera Aguilar carried out the geological

surveys, physical exploration and drilling (nine holes, a total of 800m)

1988-1990: The Army Arsenal (FM) carried out the geological surveys, geochemical

exploration and drilling (two holes, a total of 300m).

1992: Pacific Rim Co., Ltd. obtained a mining right.

1993-1999: Pacific Rim Co., Ltd. carried out the satellite image analysis, airborne magnetic

surveys, EM, CSAMT, TEM, TFM, and drilling (five holes, a total of 1,086m)

As a result, massive sulfide deposits of three horizons were captured. It was estimated that

reserves (demonstrated + inferred) were 12.5 million t. They judged that there was not sufficient

economic feasibility, and withdrew.

Mendez y Mendez (2001) introduced the Limeca exploration site and indicated the possibility

of a SEDEX deposit.


According to the Salta geological map with a scale of 1/500,000, the geological stratigraphy of

this district is in the ascending order of depth as follows: the Puncoviscana formation of the

Precambrian, the Meson Group of the Cambrian, Las Vicunas layer and Falda Cienaga formation of

the Lower and Middle Ordovician, the Payogastilla Group of the Neogene, and talus cone sediment of

the Recent. As intrusive rocks, Oire eruption compound rocks of the Middle Ordovician or the

Hornillos syenite or Rangel granite of the Lower Cretaceous are distributed (see Fig.II-4-2-1-19

referred to earlier).

La Colorada deposit, which is called volcanic massive sulfide deposit (VMS), is located in the

Ordovician system. Generally the Ordovician system of this neighborhood constitutes the fold of

various order, and its schistosity is remarkable. Moreover, thermal metamorphism causes hornfels

- 223 -

under the effect of the Cobres granodiorite belonging to the Oire eruption compound rocks of the

Middle Ordovician which adjoins the west side.

On the other hand, the Limeca exploration site by Mendez y Mendez (2001) is located in the

above-mentioned Ordovician system range. The findings are described by Mendez y Mendez (2001)

as follows.

" In the Limeca exploration site, Sierra de Cobre mountain area is formed by Santa Victoria

Group of the Ordovician period. The Group consists of slate, uartzite, quartz-biotite schist, etc. Except

stocks or vein of Neogene quartz porphyry andesite, there are no volcanic rocks in Ordovician

sediment known. "

6) Mineralization and alterations

According to the results of exploration made by Pacific Rim Co., Ltd, it seems that three

sulfide deposit horizons were captured from detailed geological surveys of the ground surface and

drillings. The ground surface consists of gossans. It shows a vein-like shape at a glance. Sulfide

minerals appear 3m under the ground surface and downward. Observations of drilling cores taken by

Pacific Rim Co., Ltd., show massive sulfides of pyrrhotite slightly accompanied by iron pyrite and

chalcopyrite, part of which fills the brecciated parts of the wall rock. According to Mayon et al. (1999),

primary sulfides confirmed with samples at drilling are pyrrhotite, zincblende, chalcopyrite, galena,

magnetite, loellingite, natural bismuth, cassiterite, tetrahedrite and electrum.

According to the 1st year survey, microscopic examination of two samples of volcanic rocks

revealed the following. One sample was metamorphic rocks originating in muddy rock and is

composed of biotite, muscovite, and anthophyllite. It is assumed that another sample is holocrystalline

equigranular texture, consisting of alteration minerals such as clinopyroxenes, brown amphibole,

sericite, smectite, and chlorite.

In the 2nd year survey, 15 samples of drilling cores were collected, and microscopic

observations of ore grinding slices were made. According the results, the ore body mainly consists of

pyrrhotite, and accompanies chalcopyrite, zincblende, arsenopyrite, galena, and ilmenite. It also

accompanies a trace of bismuthinite, natural bismuth, and electrum. The presence of these minerals

was confirmed by the results of chemical analysis of these samples, showing that the values were all

high for S, Fe, Cu, Zn, As, Pb, Ti, Bi, Au and Ag.

Rocks of the hanging wall (including the gangue rock in an ore horizon) and the footwall of

deposit horizon are mostly biotite-muscovite schist. The footwall is partially spotty biotite granodiorite

(spotty lay rock or spotty, fine lay rock under microscopic examination). The diffraction X-ray

analysis (see Table II-4-2-1-11) of these rock samples revealed commonly quartz, chlorite, and sericite.

There is no significant difference between the hanging wall (including the middle stones in an deposit

zone) and the footwall of deposit horizon. Using samples of hornfelsized shale, sandstone, and

- 224 -

hornfelsized phyllite sandstone at the Rio de Cobres valley in the southern edge of in La Colorada

deposit, the diffraction X-ray-analysis revealed commonly quartz, chlorite, and sericitein the same

manner as the drilling cores.

On the other hand, Mendez y Mendez (2001) described the mineralization of the Limeca

exploration site as follows.

"Mineralization occurred in the sedimentary rock of the Ordovician and the deposit is

composed of pyrite, pyrrhotite, zincblende, leaf-like graphite, chalcopyrite, zircon, apatite, titanite,

rutile, and tourmaline. Moreover, the substrate is recrystalized, consisting of the quartz, sericite, calcite,

epidote, and barite. "


Drilling cores of five holes that captured VMS deposit (see Fig.II-4-2-1-18 referred to earlier)

were used in order to examine geochemical characteristics of deposit horizon and the hanging/foot

walls. Principal component analysis and discriminant analysis were conducted in the same manner for

samples from Aguilar Mountain area.

Analytical data obtained from 35 samples of drilling cores of five holes were used. The

geological description etc. of 35 samples is shown in Table II-4-2-1-12, and the analysis results are

shown in Table II-4-2-1-13. Analyzed elements are Au, Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe,

K, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sr, Ti, V, W, Zn and Hg, 29 in total. The pre-processing of the

data before the statistical analysis will be described in detail in 4-3-1 (1) " General geochemical

analysis" and is omitted here.

Discriminant analysis (DA)

Results of grouping obtained by the discriminant analysis are shown in Table II-4-2-1-14,

together with the pre-determined grouping base on drilling hole number, sample collection depth, and

layer level relationship with horizon. The following variables and coefficients were carefully selected

as useful for discrimination and are shown in the table. They are four variables (logFe, logNi, logCu,

and logCo), and the coefficient of each variable for three discriminant functions (Y1-2, Y1-3, and Y2-3).

These functions discriminate between deposit horizon (G2) and hanging wall (G1), between hanging

wall (G1) and foot wall (G3), as well as between deposit horizon (G2) and foot wall (G3). Therefore,

three discriminant functions are expressed as follows.

Y1-2=-53.33277XlogFe+25.16985XlogNi+3.29869XlogCu-10.03044XlogCo-64.16628

Y1-3=15.89377XlogFe-4.14167XlogNi+4.97457XlogCu-4.80755XlogCo-12.50252

- 225 -

- 226 -

Y2-3=73.22653XlogFe-29.31151XlogNi+1.67588XlogCu+5.22289XlogCo-59.80429

The theoretical error rate is highest among the hanging wall (G1) and the foot wall (G3), while

the rate between the deposit horizon (G2) and the footwall (G3) is lower than the rate between the

deposit horizon (G2) and the hanging wall (G1). The results are similar to that of the discriminant

analysis of 72 drilling core samples collected from Aguilar Mountains zone. In other words,

discrimination between the deposit horizon and the foot wall is relatively easy, while discrimination

between the hanging wall and the foot wall is difficult.

Although the discriminant rate is high (94.29%), errors occur sometimes as shown in Table II-

4-2-1-14 (above). One sample (A02PZ205) of chlorite - biotite - muscovite schist of deposit horizon

foot wall (G3) is misjudged as the deposit horizon hanging wall (G1). Another sample (A02PZ507) of

biotite - muscovite schist of the deposit horizon hanging wall (G1) is misjudged as the deposit horizon

hanging wall (G3).

Principal component analysis (PCA)

The principal component loading matrix obtained from principal component analysis is shown

in Table II-4-2-1-15. In this table, the load of absolute value larger than 0.5 is bold-faced. The positive

and negative values are shown in red and blue, respectively. The cumulative contribution rate of four

principal components extracted is as high as about 84%. It seems, therefore, the 35 samples that

captured La Colorada deposit can be characterized by these four principal components.

Table II-4-2-1-16 shows the principal component score of each sample calculated using the

principal component load, as well as the layer level relationship with the deposit horizon. Table II-4-2-

1-17 shows the characteristics of principal components that are estimated as to how the rock qualities

etc. are related to the principal component loading matrix and score of each principal component.

The discriminant functions based on analytical data of drilling cores taken from Aguilar area

were applied to 46 samples collected in this district and analyzed. The discrimination results are

shown in Table II-4-2-1-18 and Fig.II-4-2-1-20.


Because of widely covered clouds, ASTER image quality is not enough for interpretation, but

BGR 147 identified N-S direction sedimentary rocks. Mineral identification image detected Kao-Ser

zone and Jar-Goe zone in the middle to southern part of survey area.

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Table II-4-2-1-12 Geology of the drill core samples, La Colorada Ser.No. Sample No. Depth Relative

situation Geology

1 A02PZ101 134.50m - 134.60m ore zone Massive sulphide body (po>>>asp>sp>cpy>ga)2 A02PZ102 139.00m - 139.10m ore zone Massive sulphide body (po>>>sp>cpy>asp)3 A02PZ103 145.00m - 145.15m foot wall Phlogopite-chlorite-muscovite schist4 A02PZ104 180.00m - 180.15m foot wall Biotite-muscovite schist5 A02PZ105 221.00m - 221.10m foot wall Biotite-muscovite schist6 A02PZ106 260.00m - 260.15m foot wall Garnet-biotite-muscovite-chlorite schist7 A02PZ201 167.85m - 168.00m hanging wall Biotite-feldspar-muscovite schist8 A02PZ202 171.15m - 171.30m hanging wall Biotite-feldspar-muscovite schist9 A02PZ203 192.50m - 192.65m ore zone Zone of semi-massive sulfide (po>>>asp>sp>cpy) w/in

metarhyolite10 A02PZ204 222.65m - 222.80m ore zone Massive sulfide body (po>>sp>asp>cpy)11 A02PZ205 232.30m - 232.45m foot wall Chlorite-biotite-muscovite schist12 A02PZ206 237.80m - 237.95m foot wall Chlorite-biotite-muscovite schist13 A02PZ301 56.00m - 56.15m ore zone Thin massive sulfide zone (po>>>asp>sp>cpy) in

garnet-biotite-muscovite schist14 A02PZ302 93.00m - 93.15m ore zone Zone of semi-massive sulfide with massive agregates

of poand trace amount of cpy and sp in garnet-biotite-chlorite schist

15 A02PZ303 106.00m - 106.10m ore zone Garnet-biotite-chlorite schist with qtz veinlets16 A02PZ304 137.00m - 137.20m ore zone Massive sulfide horizon (po>>>>sp>cpy=asp)17 A02PZ305 158.00m - 158.15m ore zone Massive sulfide zone (po>>>>sp>asp) in andalusite-

muscovite schist18 A02PZ401 109.55m - 109.70m hanging wall Biotite-muscovite schist19 A02PZ402 115.65m - 115.80m hanging wall Chlorite-phlogopite-muscovite schist20 A02PZ403 119.90m - 120.05m ore Massive sulfide horizon (po>>>sp>asp>cpy)21 A02PZ404 133.20m - 133.35m ore Massive sulfide horizon (po>>>sp>asp>cpy)22 A02PZ405 136.85m - 137.00m foot wall Porphyritic biotite granodiorite with calcite veinlets23 A02PZ406 144.75m - 144.90m foot wall Porphyritic biotite granodiorite with calcite veinlets24 A02PZ501 30.00m - 30.15m hanging wall Sulfide veined meta-rhyolite (qtz-sericite schist)25 A02PZ502 33.00m - 33.10m hanging wall Chlorite-altered, garnet-muscovite schist26 A02PZ503 36.50m - 36.65m ore zone Massive sulphide horizon consisting of massive, very

fine-grained po replacements, plus cpy fracture fillings,ga-aspy disseminations and sp fracture-fillings/disseminations

27 A02PZ504 65.00m - 65.20m ore zone Massive sulphide horizon (po>>>ga>sp>asp>cpy)28 A02PZ505 66.00m - 66.15m ore zone Phlogopite-muscovite-chlorite schist29 A02PZ506 83.00m - 83.20m ore zone Biotite-muscovite schist30 A02PZ507 94.00m - 94.15m ore zone Biotite-muscovite schist, fine-grained, well developed

schistosity31 A02PZ508 101.00m - 101.15m ore zone Biotite-muscovite schist32 A02PZ509 107.00m - 107.10m ore zone Massive sulfide horizon (po>>>sp>asp)33 A02PZ510 125.00m - 125.15m ore zone Massive sulfide horizon (po>>>sp>asp)34 A02PZ511 129.00m - 129.10m ore zone Biotite-muscovite schist35 A02PZ512 141.00m - 141.15m foot wall Biotite-muscovite schist with abundant metamorphic

ptz vns

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4-2-2 Porphyry copper and epithermal type deposits (1) Pancho Arias area 1) Location and access

The Mina Pancho Arias is located at lat. 24º16’ S, long. 65º51’ W, about 3,500 m above sea level. It lies 75 km direct northwest of Salta. This area is administratively under Departamento de Rosario de Lerma in Salta Province. The area is reached by going up to north on a rough road along Río Rosario diverging from Puerta Tastil where is located 35 km from Salta, via National Road 51, which runs from Salta to San Antonio de los Cobres. It is possible to travel all the way by a 4-wheel-drive vehicle. (Fig. II-4-2-2-1-1 Location map of the Pancho Arias area)

2) Mining concessions The following concessions are established in and around the Mina Pancho Arias:

• Mining license No. 4799 (holder: Lapacha Minera SRL) • Exploration licenses Nos. 15602-1996, 15603-1996 and 15757-1996 (held by Minera Argentina Gold SA) The mining license is located around the old workings in the Mina Pancho Arias (also called the Mina Vizcacheral). In a place west of this area, three exploration licenses are located in a line from south to north. No other concessions are established in this area (in the Las Burras and the Incahuasi prospects, there is no concession at present). Fig. II-4-2-2-1-2 shows the situation of concessions in the Pancho Arias area.

3) Past exploration and mining activities • Around 1700, some prospectors who visited with the Jesuit missionary discovered the mineral showings. (There are some old workings, which seem to date from that time.) • In 1950’s and 1960’s, a series of exploration was carried out by the Delegacio’n General de Fabricaciones Militares (DGFM). • From 1972 to 1975, the exploration was carried out according to the United Nations NOA I program (DGFM set up a Reserva and called it as the Vizcacheral). The works included topographic survey (Scale: 1 to 2,500), geochemical survey (stream sediments), geophysical survey using the IP method (total line length: 19.2 km), electromagnetic survey (line length: 5 km) and drilling (10 holes totaling 1,716 m). As the result, porphyry copper-molybdenum deposits with ore reserves of 230 million tons at 0.035 % Mo were caught (regarding Cu mineralization, a copper dissemination body was caught in a drill hole at a depth from 50 m. The average copper grade at 32 m length was 0.30 % Cu. The highest copper grade reached to 1.45 % Cu). Based on the results of the IP and electromagnetic survey, the anomaly probably due to a sulfide body was detected at a depth of about 300 m. • From 1995 to 1997, an exploration program (mainly comprising geological survey, geochemical survey, geophysical survey using the IP method) was made by Aranlee Resources. Aranlee Resources said that the mineralization seemed to be of the typical porphyry Cu and Mo type. According to a report

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of Aranlee Resources, mineralization occurs in the quartz stockwork zone hosted by dacite porphyry. The central part of the deposits lies in the potassic alteration zone, and it is surrounded by phyllic/argillic alteration zone (consisting of quartz-sericite-clay minerals, and sulfide minerals). The propylite zone occurs at the outermost of them. • In 1998, Mansfield Minerals carried out an exploration program (geological survey, geochemical survey, geophysical survey using the IP method, six trenches of 870 m in length and four drill holes) in the Las Burras prospect (8 km south of the Mina Pancho Arias). • From 1997 to 1999, Mansfield Minerals carried out an exploration program (geological survey, geochemical survey, geophysical survey using the IP method and 6 trenches of 860 m in length) in the Incahuasi prospect (13 km south of the Mina Pancho Arias).

4) Geology and geologic structure Based on the Mapa Geológico de la Provincia del Salta at a scale of 1 to 500,000, the

geology around the mineral showings, is composed of the upper Precambrian Puncoviscana group sedimentary rocks (greywacke, shale and sandstone; partly presenting the green schist facies due to the weak metamorphism), the lower Cambrian, Meson group (shale, sandstone and conglomerate), the Santa Victria group (sandstone), and the Cambrian granitic rocks (Tastil granite). The Tertiary acidic intrusives occur in these sedimentary rocks and granites. The acidic intrusives are generally small (about 5 km in length along the major axis), made up of dacitic, audesitic, monzonitic, and dioritic composition. About ten acidic bodies are exposed on the surface in this area, occurring for 50 km from south to north. The acidic intrusives are of Miocene age (15 to 13 Ma). (Fig. II-4-2-2-1-3 Geologic map of the Pancho Arias area)

5) Mineralization and alteration The Mineralization and alteration of the Mina Pancho Arias occur in monzonite or dacite

porphyry of the upper Miocene (age determination was made by the survey last year; a result of 15.4 ± 0.3 Ma was obtained), and in the Precambrian sedimentary rocks near the porphyry. The known ore deposits have of porphyry copper-molybdenum type mineralization. Sulfide minerals such as chalcopyrite, chalcocite, covellite, galena and molybdenite were reported. The ore deposits accompany several hydrothermal alteration zones. The most important of them is the potassic alteration zone (biotite-potash feldspar) within the area whose major axis from the central part is several hundred meters, which is in turn surrounded by a propylite alteration zone (accompanied by chlorite - epidote - calcite and pyrite). Inside and around the propylite zone, a phyllic - argillic alteration zone (quartz - sericite - clay mineral) is distributed. There is mineralization of mainly molybdenite and a small amount of chalcopyrite and pyrite partly in the potash alteration zone, while mainly pyrite is mineralized in the phyllic - argillic alteration zone. Mineralization of these sulfide minerals present dissemination and form stringers.

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In the south of the Mina Pancho Arias, porphyry copper/gold mineralization is observed in Mozonitic porphyry in Las Burras. Dissemination - stockwork of quartz - tourmaline - magnetite containing Cu and Au (±Mo) is distributed with silicification and sericitizatio. As sulfide mineral, pyrite, chalcopyrite and chalcocite are observed. ineralized alteration is not found remarkably on the ground surface, and only weak propylitization is observed generally.

In two places, which are about 3 km away from each other (Incahuasi Norte and Incahuasi Sur) in Incahuasi, porphyry copper/gold mineralization is observed in monzonitic porphyry of Tertiary Miocene. Mineralization of quartz - tourmaline - magnetite of the stockwork type is accompanied by silicification, sericitization and chloritization here. In stockwork, sulfide minerals, such as pyrite, chalcopyrite and chalcocite, and rarely native gold are observed. According to the results of the investigation of Mansfield Minerals Co., Ltd., quartz and tourmaline stringers located in the peripheral zone accompany places with the largest amount of gold.

6) Characteristics of the satellite image In the Mina Pancho Arias, three main alteration zones can be identified from ASTER image

analysis. As a result of identification of altered mineral with the Isograin Model used, it was found that an alteration zone composed of chlorite - epidote spreads in the area of 2.0 km x 1.5 km near an old mine (Socabón). Inside it, an alteration zone mainly made up of sericite and kaolin and accompanied by a small to trace quantity of goethite and jarosite is observed, and forms alteration zoning. Northwest of this old mine, there is distribution of an alteration zone mainly consisting of a combination of chlorite and epidote. Inside or around these alteration zones, it is observed that alteration zones mainly composed of small-sized sericite are output sporadically.

South of Mina Panch Arias, alteration zones have been mapped out in several places from ASTER image analysis. Although no large alteration zone is found in Las Burras, in and around Incahuasi, located south of it, alteration zones with the long axis of 1 to 3 km and made up of sericite and chlorite are distributed in several places. (Fig.II-4-2-2-1-4 ASTER image analysis of hydrothermal alteration zones in the Pancho Arias area)

7) Survey results Following the investigation of Phase I (number of collected samples: 12), geological surveys

were carried out in three zones: (i) Mina Pancho Arias, (ii) Las Burras and (iii) Incahuasi zones. In addition, a drilling core, which was made by DGFM and is kept by the Mine Department of Salta State, was surveyed. The number of collected samples is 89 in total. (The breakdown of analyses and tests is as follows: 40 geochemical analyses, 6 ore analyses, 2 whole rock analyses, 50 X-ray analyses, 18 rock thin-section assessments and 4 ore polished thin-section assessments.)

In the Mina Pancho Arias, with an old mine and pits in three places aligned in the N-S direction as the primary object, outcrops of a potash alteration zone in monzonitic porphyry, drilling holes and trenches were also investigated. Objects of the exploration of the old mine and pits were monzonitic

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porphyry which was subjected to silicification, argilliization, or potash alteration with biotite as the main body; and quartz stringers and network vein zones around it which exist in sandstone/shale belonging to Puncoviscana complex. In and around the quartz veins, silicified sulfide minerals (partly changed to limonite due to weathering) with pyrite as the main are observed. It is seen that strongly silicified parts contain tourmaline. Parts with dissemination of copper mineral were found, although partially. The following results of analysis were obtained from samples collected in a trench northwest of the old pit: Au 2.00 g/t, Ag 407 g/t, Cu 0.01%, Pb 1.91%, As 0.83% (A02RF018).

According to results of X-ray analysis of samples collected in this zone, a potash alteration zone mainly made up of quartz, biotite and potassium feldspar is observed within the area with the long axis of about 1 km (short axis of several hundreds meters) whose center is the place located about 800 m northeast of the old pit where monzonitic porphyry is exposed. Other potash alteration zones are partly observed on a small scale. In this zone, there is output of phyllic - argillic alteration zones characterized by a combination of quartz - sericite - kaolin and containing a small to trace quantity of goethite and jarosite. Two phyllic - argillic alteration zones presenting a long and narrow form principally extending in the NE-SW direction are output in parallel near the old mine. In several places, there is distribution of small phyllic - argillic alteration zones with the long axis of several hundred meters northwest of the old pit in the Mina Pancho Arias. Surrounding these alteration zones, propylite alteration zones made up of chlorite and epidote are distributed.

Based on results of ASTER image analysis and site surveys, characteristics of hydrothermal alteration zones can be summarized as follows: (1) Alteration zones can be divided into three kinds according to the combination of minerals: potash alteration zones, phyllic - argillic alteration zones and propylite alteration zones. (2) Potash alteration zones occupy a small part of the inside of propylite zones. Phyllic - argillic alteration zones are spreading mainly in the NE - SW direction, and appear to be controlled by cracks. (3) Porphyry copper/molybdenum (gold) mineralization is output in the area where potash alteration zones and phyllic - argillic alteration zones are distributed. (4) These alteration zones are located in Precambrian sedimentary rocks around monzonitic porphyry of Miocene as the center.

For the drilling core made by DGFM, parts where copper mineral and molybdenum mineral were observed were mainly investigated, and a small quantity of samples was collected. Mineralization is found in monzonitic porphyry, and sandstone and shale in Puncoviscana complex. In Drilling Hole P4, stringers of quartz and carbonate mineral develop in parts with strong silicification, and sulfide minerals with pyrite and a trace of chalcopyrite as the main were observed in those stringers. Results of analysis of this part were Au 0.02 g/t, Ag<1 g/t and Cu 0.42% (Sample A02RF002). In Drilling Hole P7, parts containing stringers of pyrite and molybdenite in monzonitic porphyry were observed. Results of analysis of this part were Au and Ag below the limit of detection, Cu 0.01% and Mo 0.22% (Sample A02RF005). As a result of X-ray analysis of these drilling samples, small to trace quantities of sericite and potassium feldspar were detected with quartz and biotite as the main. (Fig. II-4-2-2-1-5 Survey results in the Mina Pancho Arias)

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In Las Burras zone, trenches excavated in N-S and E-W directions in four places and alteration zone outcrops are distributed in valleys between mountains rising about 3,700 m above sea level. Parts where quartz stringers or network veins accompanying copper mineral in monzonitic porphyry developed were observed here. As a result of analysis of this part, Au 0.03 g/t, Ag <0.5 g/t and Cu 0.38% (Sample A02RF040) were obtained. The scale of zones with copper mineralization is as small as about 10 m in the long axis on the ground surface. (Fig. II-4-2-2-1-6 Survey results in the Prospecto Lass Burras)

In Incahuasi zone, trenches have been cut in two areas about 3 km apart, southwest (Incahuasi Sur) and northeast (Incahuasi Norte). Both of them were used for geochemical exploration of silicified/argillized alteration zones of monzonitic porphyry. From observation with the trenches used, weak silicified/argillized alteration is found but mineralization of sulfide mineral is slight. As a result of analysis of rock samples in trenches, values such as Au 0.10 g/t, Ag<0.5 g/t and Cu 0.01% (A02RF022) were derived. (Fig. II-4-2-2-1-7 Survey results in the Prospecto Incahuasi)

In addition to the above-mentioned areas, site verification was carried out for those, which were considered from ASTER image analysis to be probable alteration zones.

8) Comments • Mina Pancho Arias, Las Burras, Incahuasi (Norte, Sur) and main porphyry copper/molybdenum (gold) mineralized zones are located almost in the NNE-SSW direction because of restriction due to intrusion of monzonitic porphyry of Neogene Miocene. • Hydrothermal alteration zones are distributed in monzonitic porphyry, and Precambrian sedimentary rocks are located around the former in several places. Among alteration zones, those in the Mina Pancho Arias show zonal structure of potash alteration zones, phyllic - argillic alteration zones and propylite alteration zones. Porphyry mineralization is recognized in potash alteration zones and phyllic - argillic alteration zones. • These mineralized zones are small-scale, and it is judged that the ore grades of copper, molybdenum and gold are also low.

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(2) El Pago area 1) Location and access

These mineral showings are located at lat. 27º05’ S, long. 65º55’ W, 3,000 m - 4,300 m above sea level. This place is administratively under Departamento de Monteros in Tucumán State. They are located in the mountains of Sierra del Aconquija on the upstream of Río de la Horqueta, and there is no road in the vicinity. Entering from Andalhuala by riding on a horse (two-day trip each way) or using a helicopter is the only way to reach there. (Fig. II-4-2-2-2-1 Location map of the El Pago area)

2) Mining concessions There is an old mine (Mina Rica) in this place of mineral showings. It is said that mining

area are established in the periphery. (Details unknown)

3) Past exploration and mining activities The outline of past investigations is as follows (mainly according to Carlos H. Morello, a

geological engineer). • Geological survey was carried out by the U.N. and Servicio Nacional de Geología y Mineria (SM) several times during the 1970s. (Several-hundred rock samples were collected, and geochemical analysis, analysis of altered mineral, etc. were carried out.) • Utah Co., Ltd., an American company, carried out investigation in 1987 (Eighteen rock geochemical samples were collected.) • Paramount Ventures & Finance Co., Ltd., carried out investigation in 1996. (Twenty-nine rock geochemical samples were collected.) • Pegasus Gold International Co., Ltd., carried out investigation in 1997. (Sixteen rock geochemical samples were collected.) • Rio Tinto Co., Ltd., may have carried out investigation thereafter. (Details unknown.)

4) Geology and geologic structure According to the geological map of Tucumán State on a scale of 1 to 500,000, the place of

mineral showings, El Pago, is within the area where Upper Precambrian bedrock (Piscoyacú gneiss) is distributed. Ordovician granite rocks are distributed in the northeast, and Portezuelo las Ánimas volcanic composite rocks of Tertiary Miocene (mainly andesitic volcanic rocks) are distributed in the north and northeast.

According to geological data obtained from SEGEMAR Tucumán branch office, there are three kinds of rock distributed in this place of mineral showings: Precambrian bedrocks (granulite, metasedimentary rock, gneiss etc.), dacitic - andesitic porphyry, and lamprophyre. (Fig. II-4-2-2-2-2 Geologic map of the El Pago area)

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5) Mineralization and alteration In this place of mineral showings, an old mine called Mina Rica is known. It is said that this

mine was used for quartz prospecting by drift carried out in 1988 by the then mining-right holder. It is also said that quartz veins contained pyrite, and results of analysis such as Au grade 1.4 g/t, 6.8 g/t, and 12.6 g/t were obtained (according to Carlos H. Morello).

In this place of mineral showings, silicified - argillized alteration zones are distributed on the ground surface in the area of about 4 km x 2 km (generally extending from east to west). According to investigations carried out by SM and others, alterations here include potash alteration, sericitization, argillization, propylitization and silicification. In the investigation by the U.N. and SM in 1976, geochemical analysis was made for several-hundred rock samples. The results are as follows: Au～2.4 ppm (Highest value - same hereinafter: Sample 26426), Ag～8 ppm (Sample 67594), Cu～125 ppm (Sample 67501)*, Pb～400 ppm (Sample 25190), Zn～275 ppm (Samples 25151 and 26418) and Mo～80 ppm (Sample 25183). As known from these values, higher grades are found locally but,

generally, only low values have been obtained. (* This year, part of samples stored by SEGEMAR was analyzed again, as mentioned later; Cu 1,675 ppm was the highest value was obtained; Sample 23264.)

Last year, X-ray analysis was carried out for ten rock samples supplied by SEGEMAR Tucumán branch office (3 porphyry samples, 4 metamorphic bedrocks samples, 3 lamprophyre samples). From the result of X-ray analysis, the presence of the above-mentioned alteration has been confirmed. It was found that chalcopyrite and pyrite were contained in some samples.

6) Characteristics of the satellite image This place of mineral showings is located in the peripheral part of a vegetation zone, and is

an area where image analysis is difficult due to the influence of vegetation. In the ASTER false color (VNIR) image, the area of 4 km x 2 km presents a color tone which is remarkably different from the circumference and can be recognized as a large-scale alteration zone. When this part is seen in a 3D image, the situation like depressed topography (Bajo) surrounded by branch streams is recognized. According to the result of altered mineral identification with the Isograin Model used, sericite, chlorite, goethite, and a small quantity of epidote are distributed over the area of alteration zones. Outcrop of kaolin and jarosite is partly observed in alteration zone.

This place of mineral showings is located 30 to 40 km northwest of Agua Rica, Filo Colorado, and a prospecting area of porphyry copper deposits. In satellite image analysis, it is recognized that there is distribution of a group of alteration zones which extend in the NE-SW direction sporadically between Filo Colorado and El Pago and which mainly consist of sericite and goethite. Furthermore, although probable indication of alteration zones is recognized in the place 4 to 6 km northeast of El Pago, it is difficult to identify alteration zones with the satellite image used because this is a vegetation zone. (Fig. II-4-2-2-2-3 ASTER image analysis of hydrothermal alteration zones in the El Pago area)

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7) Survey results X-ray analysis was made for 10 rock samples provided by SEGEMAR Tucumán branch

office, our counterpart in the last year. This year, site survey was carried out mainly for an old mine (Mina Rica) situated in the northern part of this zone and alteration zones in the northwestern part, and samples were collected. The number of collected samples is 17 in total. (The breakdown of analyses and tests is as follows: 15 geochemical analyses, one ore analysis, 13 X-ray analyses, 18 rock thin-section assessments and 4 ore polished thin-section assessments). In addition to geochemical analysis of 15 rock samples provided by SEGEMAR Tucumán branch office last year, data on analysis of rock geochemical samples and on alteration of rock samples, obtained by SM during the 1970s, was input in GIS and analyzed together with results of geochemical analysis and X-ray analysis in this investigation.

The old mine in Mina Rica was cut on the steep slope of the mountain (at about 3,770 m above sea level) and used for prospecting by drift of quartz stringers/networks in gneiss belonging to the Precambrian Piscoyacú complex The drift was excavated about 10 m along veins. Veins have strike and dip of N72°W, 78°S, and width of 50 to 70 cm. Sulfide mineral (mainly pyrite) is observed in quartz veins. As a result of analysis of vein samples, Au 0.01 g/t, Ag<1 g/t and Cu 0.01% were obtained (width of collection: 65 cm; Sample: A02RF104). In the results of analysis of ore samples, which had fallen near the pit mouth, Au 0.149 g/t, Ag 1.8 g/t (Sample A02KK048), Au 0.065 g/t, Ag 10.8 g/t (Sample A02TK048) etc. were obtained. As a result of microscopic observation of ore polished thin-sections, pyrite, goethite and small quantities of pyrrhotite and sphalerite were recognized in quartz veins (Samples A02RF104, A02RF105 and A02RF106). Wall rock around veins suffers strong silicification and argillization. In the results of X-ray analysis of alteration zones on upper bedrock of a vein, quartz, sericite, and trace quantity of chlorite and jarosite were detected (Samples A02RF105 and A02RF106). In the results of geochemical analysis of altered rock samples at the point about 300 m north of this old mine, values of Au 1.115 g/t, Ag<0.5 g/t and Cu 79 ppm were derived (Sample A02RF102). From the X-ray analysis test of altered rock (gneiss) around the said point, quartz sericite and small to trace quantities of chlorite, limonite and others were detected.

In this zone, alteration zones have been widely extracted in ASTER image analysis, as mentioned above. These alteration zones are distributed on the steep slopes of mountains, and, as far as we observed in the actual place, there were many parts that were difficult to access. Site investigation of the north end part of the western alteration zone is carried out. This alteration zone is mainly located in gneiss. The following results of geochemical analysis were obtained from a collected rock sample (Sample A02YH049): Au 0.191 g/t, Ag 11 g/t, Cu 104 ppm and Mo 1,005 ppm as the highest values. In the results of X-ray analysis of this part, quartz and sericite were the main compornents while small to trace quantities of chlorite and goethite were recognized, and alteration corresponded to phyllic-argillic alteration.

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From the combination of results of X-ray analysis this year and the results of alteration analysis carried out by SM during the 1970s, the following state of output of alteration zones was recognized: (1) Alteration zone (phyllic - argillic type alteration and propylite type alteration) mainly consisting of quartz, sericite, chlorite and clay mineral on the ground surface in the area of 4 km x 2 km. Distribution of both types of alterations overlaps. (2)Around the center of these, potassic alteration zones are distributed where potassium feldspar (±biotite) is recognized（according to

materials of the 1970s). (3) In alteration zones in this zone, there are places where quartz stringers/networks are contained, and silicified zones are distributed around them. Quartz veins are considered to be mainly E - W oriented. Gold is partly contained in quartz veins. (Fig. II-4-2-2-2-4 Survey results in the El Pago area)

8) Comments • In The El Pago area, propylite alteration zones and phyllic - argillic alteration zones overlapping them are distributed in a wide area, and potassic alteration zones are distributed in the central part of hydrothermal alteration zones. Quartz stringers/networks exist partly in them, and it is considered that gold is contained there. • Around this zone, porphyry deposits such as Agua Rica and Filo Colorado are known. It is assumed that these were formed in relation to dacite/andesite intrusive rock of the Neogene. These deposits or mineralized zones run linearly in the NE -SW direction, and in the middle part of and on the extension line of them, alteration zones have been detected from ASTER image analysis, which is considered to indicate the existence of a tectonic line that controlled mineralization and alteration. • The El Pago area is located in the Sierra del Aconquija Mountains and has been scarcely investigated systematically so far due to limited accessibility. Therefore, this zone is still left as a virgin area, and according to the results of investigations and analysis of this year, it seems to have the possibility of being a predominant prospecting area of porphyry deposits depending on the procedure of future systematic investigation.

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(3) Rachaite area 1) Location and access

The Rachaite area is located at lat. 22º52’ S, long. 66º08’ W, 3,600 m - 4,000 m above sea level. This place is located about 60 km directly west from Abra Pampa, and about 45 km south of Rinconada. Administratively, it is under Departamento de Rinconada in Jujuy State. The Rachaite area is reached by going from Abra Pampa on unpaved State Road 74 by a 4-wheel-drive car, and going south 4 km along Quebrada Liviala, on the east side of Rachaite village. The mileage is 58 km, and it takes about one- and -a-half hours to get there. (Fig. II-4-2-2-3-1 Location map of the Rachaite area)

2) Mining concessions The following mining areas are established in and around the place of the Rachaite area:

• Mining Area No. 546-S-1979 (Chocaya, Mining-right holder: Carlos Silva) • Mining Area Nos. 109 - O - 1997 and 110 - O - 1997 (Opawica Min. Ar. SA), 276 - W - 1997 and 277 - W - 1997 (Mario C. Rojo) • Prospecting Area Nos. 096 - O - 1997 (Opawica Min. Ar. SA), 113 - R - 1997 (RTZ Min. Exp. Ltd.) (Fig. II-4-2-2-3-2 Situation of concessions in the Rachaite area)

3) Past exploration and mining activities There is a record that lead and zinc were produced during the 1950s, but details are unknown.

4) Geology and geologic structure According to "Mina Pirquitas," a geological map on a scale of 1 to 250,000, the geology of

this zone consists of Coranzuli volcanic complex of the Tertiary Miocene. A place of mineral showings is located about 25 km northeast of Coranzuli caldera. Coranzuli volcano is a caldera of about 5 km in diameter, which is characterized by eruption of dacitic ignimbrite; it was formed by the eruption of ignimbrite, which occurred three times (5 Ma). On the other hand, Cerro Rachaite was formed in the early stage of a series of volcanic activities. The Rachaite place of mineral showings is located in the southern part of Cerro Rachaite and is made up of dacite lava formed in the early stage of volcanic activities (8 - 9 Ma). The whole southwestern part from the Rachaite place of mineral showings to Cerro Coranzuli is widely covered by ignimbrite. (Fig. II-4-2-2-3-3 Geologic map of the Rachaite area)

5) Mineralization and alteration In this region, alteration zones extending from south to north parallel to Quebrada Liviala

exist in two places, east and west. The eastern alteration zone has a length of about 3 km from south to north and the greatest width of 700 m from east to west. It forms a small, steep mountain with relative height of about 200 m, sandwiched by southern and northern streams. This zone is subjected to white argillized alternation and limonitic alteration. White argillized rock can be relatively clearly

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distinguished from surrounding dacite and andesite. Andesite with no or weak alteration is dark black in color and has clear phenocryst (plagioclase, quartz and amphibole). White dacite is brecciated, and the matrix is filled up with limonite. By the naked eye, dark mineral does not remain, and argillized plagioclase phenocryst is observed. According to results of X-ray analysis, both dacite with plagioclase completely replaced by clay mineral (sericite, sericite/montmorillonite mixed-layer mineral, chlorite, kaolin, etc.) and dacite with part of plagioclase still remaining are recognized. Altered andesite is intruded by andesite veins presenting dark color to green. In dacite, N-S oriented fine fractures develop, which are filled up by limonite stringers. Near the mountaintop, a limonite layer considered to be recent is formed and iron is leached by acidic epithermal water sediments. There is an old mine (formerly a prospecting one) at the north end of the alteration zone in the east side. The direction of the gallery is N10°W, and it appears that lead/zinc stringers were prospected by drift. In waste, there is mixture of quartz veins containing galena/sphalerite. In the results of microscopy in the first year, disseminated - networked pyrite, coarse-grained sphalerite, small quantity of galena, arsenopyrite, and, as gangue, calcite and quartz were observed. In the results of ore analysis, the following values were obtained: Au 0.04 g/t, Ag 142 g/t, Pb 1.71%, Zn 2.5%（A01KN088), Au

0.025 g/t, Ag 2.5 g/t, Pb 0.18% and Zn 1.22% (A01YH050). On the other hand, the western alteration zone is exposed on the cliff part along small

streams. It has a length of about 1.3 km from south to north and a width of 400 to 500 m, and is subjected to strong white argillized alteration. In the results of analysis of this opaline quartz vein sample in the first year, both Au and Ag values were below the detection limit.

6) Characteristics of the satellite image Alteration zones detected in this place of mineral showings present white color and can be

identified very clearly in the false color image. In the color-ratio composite, strongly abnormal areas consistent with the white part in the false color image were detected. In the results of altered mineral identification with the Iso-grain Model used, the color tone indicating alunite - kaolin acid alteration zones and sericite alteration zones were detected in the same places. The color tone representing goethite and quartz is observed there. (Fig. II-4-2-2-3-4 ASTER image analysis of hydrothermal alteration zones in the Rachaite area)

7) Survey results The phase I survey was carried out mainly regarding the north part of alteration zones

(Number of collected samples: 25). This year, site investigation was conducted mainly regarding the south part of east and west alteration zones. The number of collected samples is 30 in total: (10 geochemical analyses, 26 X-ray analyses and 3 rock thin-section identifications).

In the east alteration zone, which is of the largest scale, old mines were cut in several places in the north part, as described in last year’s report, and were used for prospecting by drift of quartz - calcite stringer zones with an almost N - S strike, which contain sulfide mineral. Veins have dacite as

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host rock and contain mainly pyrite, galena and sphalerite. Silver is contained in sulfide mineral, although quantity is small. The edge of veins is subjected to weak silicification and alteration with sericite as the main. In this year’s survey, many places receiving strong silicification - pyritic alteration were found in clay alteration zones of dacite along streams and on ridges. In these places, strong alteration zones made up of quartz, pyrite, gypsum and clay mineral are distributed in the form of an irregular vein with a width of several meters. Parts where quartz veins containing pyrite exist were recognized, although only partly. In the results of analysis of these alteration samples or quartz veins, the values of Au, Ag, Pb and Zn were low; the highest Au value was 0.02 g/t (Sample A02RF062) and the highest Ag value was 0.8 g/t (Sample A02RF067). Namely, though alteration zones in this zone are disseminated by sulfide mineral with pyrite as the main, mineralization of Au, Ag or base metal is weak. According to the results of X-ray analysis of samples collected in this zone, altered mineral has mineral combination of quartz - opaline quartz, sericite, and sericite/montmorillonite mixed-layer mineral, and is accompanied by small to trace quantities of kaolin, jarosite, chlorite, calcite, alunite, pyrophyllite, gypsum and pyrite.

The alteration zone in the west part is basically similar to the alteration zone in the east part, mainly a mineral combination of quartz-opalic quartz, sericite, and sericite/montmorillonite mixed-layer mineral. It is accompanied by small to trace quantities of kaolin, jarosite, chlorite, alunite, pyrophyllite, gypsum and pyrite. (Fig. II-4-2-2-3-5 Survey results in the Rachaite area)

8) Comments • Ag-Pb-Zn mineralization in the Rachaite area is reserved in Miocene dacite lava, and is considered to be related to a hydrothermal system formed in the relatively early stage of dacitic Coranzuli caldera complex activities, which occurred in the middle to later Miocene. • In the survey carried out successively from last year’s investigation, silicified zones and mineralization/alteration zones where quartz veins were accompanied by mineralization of sulfide mineral with pyrite as the main were newly found in several places in the southern part of the zone. However, no noteworthy grades were derived from the results of analysis of collected samples. • Considering the results of both last year’s and this year’s investigations in a comprehensive manner, although strongly acid alteration zones are distributed in this zone, as main sulfide mineral is pyrite, it is judged that mineralization of Ag, Pb and Zn is limited to a very small part of veins only.

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(4) Cerro Galán area 1) Location and access

This alteration zone is located at lat. 25º52’ S, long. 67º02’ W, about 5,000 m above sea level. This place is administratively under Departamento de San Carlos in Salta State and is located about 40 km directly northeast from Antofagasta de la Sierra, and about 18 km north of Laguna Diamante. The distance is 80 km from El Penón along State Road 43 by driving a 4-wheel-drive car, but depending on the season, travel by car can be difficult. (Fig. II-4-2-2-4-1 Location map of the Cerro Galán area)

2) Mining concessions Around the Cerro Galán caldera outer-wall, companies such as BHP and RTZ established

mining areas during the 1980s and the 1990s. These mining areas are now under the jurisdiction of the state. In the central part of the caldera, Reserva D-216-1996 is established, and no mining area can be made. (Fig. II-4-2-2-4-2 Situation of concessions in the Cerro Galán area)

3) Past exploration and mining activities In this zone, volcanololgic studies mainly covering ignimbrite were conducted by American

and English geologists during the 1980s. Although geological survey and geochemical exploration were carried out by BHP at the end of the 1980s, it is recognized that the results were negative (information of SEGEMAR Tucumán branch office). After that, although it seems that several prospecting companies conducted small-scale investigations, no official records are kept.

4) Geology and geologic structure Mineral showings is located on the northwestern wall of the Cerro Galán caldera. This

caldera is a volcanic caldera complex of about 40 km from south to north and about 25 km from east to west, and develops on Precambrian to Paleozoic basements, which has changed to horst/graven. This horst/graven is controlled by faults, running in the direction of south to north, which are about 20 km distant from each other.

According to "Cachi," a geological map on a scale of 1 to 250,000, and other existing geological materials, the geology around these alteration zones consists of upper Proterozoic schist, phyllite, hybrid rocks (called Pachamama layer and Río Blanco metamorphic rocks), granite - diorite rocks (Silurian, called Ore composite rocks), sandstone/conglomerate rocks (Lower Silurian to Devonian system, referred to as Falda Ciénaga layer), monzonite granodiorite (Devonian?), and dacitic to andesitic lava rocks and ignimbrite of the Neogene Miocene to Pleistocene, which cover them. Basements border Neogene volcanic rocks on a fault with inclination to the east, "Falla del Medio." For Neogene volcanic rocks, age determination and classification are made as follows: dacitic porphyry (Inca Viejo layer, 15 Ma), dacitic - andesitic stratovolcano (Beltrán layer or Tebenquicho layer, 14.5 Ma), Toconquis stratovolcano, Colorado stratovolcano, Pabellon stratovolcano (age of all

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of which is 7 to 4 Ma), old ignimbrite (such as Real Grande ignimbrite, 6 to 4.2 Ma), and new ignimbrite (Cerro Galán ignimbrite, 2.2 Ma).

Alteration zones in this zone are located on the wall part of the Cerro Galán caldera, as mentioned above. In the central part of the alteration zones, crossing of E-W oriented and NE-SW oriented lineaments is recognized (Is it a fault?). (Fig. II-4-2-2-4-3 Geologic map of the Cerro Galán area)

5) Mineralization and alteration This alteration zone was found as a result of analysis of alteration zones by the use of

ASTER data, but details are unknown because past investigation materials have not been obtained. As mentioned in the section on tectonic structure, however, it is considered, from the fact that a caldera fault and a lineament estimated to be a radial fault crossing it are distributed, that there is the possibility of a hydrothermal alteration zone formed by rise, along the part crossing the fault, of epithermal water accompanying volcanic activity when the caldera structure was formed. Therefore, it was expected that this alteration zone has reserve of epithermal deposits formed by such hydrothermal activity.

6) Characteristics of the satellite image Several alteration zones have been detected from the Cerro Galán caldera by LANDSAT TM

and ASTER image analyses. Most of these alteration zones run along the caldera wall. The largest of them is in the northwest part of the caldera. This alteration zone is about 4 km in diameter and presents the color tone mainly representing the presence of kaolin in the results of altered mineral identification. (Other than this, alteration representing small amounts of alunite, sericite and goethite is recognized.) About 500 m south of this large-scale alteration, a small-scale alteration zone group that shows the color tone representing distribution of alunite and kaolin has been detected. In the western part of Laguna Diamante, indications of alunite, kaolin and sericite are recognized. (Fig. II-4-2-2-4-4 ASTER image analysis of hydrothermal alteration zones in the Cerro Galán area)

7) Survey results The number of samples collected in the field survey is 37 in total (21 geochemical analyses,

33 X-ray analyses and 4 rock thin-section identifications). In the result of geochemical analysis of altered rock, almost all of samples had Au<0.005

ppm, Ag<0.5 ppm and Cu 2 - 18 ppm. In the X-ray analysis test of altered rock, altered mineral made up of a combination of

sericite, chlorite and calcite was recognized in many samples. A large quantity of kaolin was recognized in some samples (Samples A02KK041, A02KK045). Only in a very limited number of samples, trace quantities of jarosite (A02KK036, A02KK040) and pyrite (A02YH036) were detected. (Fig. II-4-2-2-4-5 Survey results in the Cerro Galán area)

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8) Comments • In this area, several lineaments were recognized on the ASTER images. They were interpreted as faults. Some of them show a characteristic feature of normal faults formed by caldron subsidence, and others exhibit a nature of radial faults, which crosscut the former. On the basis of such evidence, the alteration zones in this area are assumed to be formed by the hydrothermal solution, which ascended along the intersections of faults during the volcanic activity. • The hydrothermal alteration zones, which were detected by the ASTER image analysis, were surveyed in the field. The geochemical analysis on the samples obtained during the survey this phase, however, showed no significant value. • Such results present no positive indication for the economical point of view, at least on the surface. We cannot see the potential of the depth because there is no information at the moment. In addition to it, there is another difficult condition for the survey of this area; the altitude is very high, more than 5,000 m. The necessity for the further work on this area is thought to be very little.

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4-3 Discussion of survey results

4-3-1 SEDEX/VMS deposits

(1) General geochemical analysis

1) Introduction

By using the results of the geo-chemical analysis of 197 samples in total collected from

four areas of Aguilar range area, Pumahuasi area, Santa Victoria Mountains area, and La Colorada

area that are selected to explore SEDEX/VMS deposits, a principal component analysis that is one of

the unsupervised classification methods among multivariate analyses was carried out.

Principal component analysis attempts to explain variations included in one set of

multivariate data by a set of a smaller number of variations (principal components) that are not

correlated to each other. New variables (principal components) are called 1st principal component,

2nd principal component, ･････ and Nth principal component. It is said that the majority of the

variations of the data can be explained by the first several principal components. Here, this principal

component analysis was carried out for the purpose of discriminating expected mineralization such

as SEDEX or VMS, etc. as principal components from the variations of the analytical values of 29

elements out of 197 samples in total. The analysis was also carried out for the purpose of

discriminating potential zones of this mineralization from the geographic distribution of the principal

component score.

2) Used data

The data used are chemical analytical data (Table II-4-3-1-1) of rock (and, ore) samples

collected from four areas of Aguilar range area, Pumahuasi area, Santa Victoria Mountains area, and

La Colorada area. The total number of the samples is 197, and the breakdown is shown as follows.

Aguilar Range area: 46

Pumahuasi area: 7

Santa Victoria Mountains area: 104

La Colorada area: 40

The 29 elements analyzed are Au, Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Mg,

Mn, Mo, Na, Ni, P, Pb, S, Sb, Sr, Ti, V, W, Zn, and Hg.

3) Pre-processing of data

Prior to the processing of statistical analysis, the 1/2 times value of the detection limit

value was conveniently adopted for the value below the minor detection limit. The two times value

of the detection limit value was adopted for the values higher than the upper detection limit. In

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addition, as a result of normality test by histogram, the analysis values were logarithmically

conversed for 22 elements (Au, Ag, As, Ba, Be, Bi, Ca, Cd, Co, Cu, Fe, Mn, Mo, Ni, P, Pb, S, Sb, Sr,

W, Zn, and, Hg) that showed the tendency of logarithmic normal distribution (positive asymmetric

distribution).

4) Calculation processing

Following WWW data analysis “Black Box", one of the web software for principal

component analysis, was employed for the calculation.

http://aoki2.si.gunma-u.ac.jp/BlackBox/BlackBox.html (in Japanese)

According to the arrangement for using this “Black Box", all data was converted into text

files (ASCII files). The principal component analysis starts with the calculation of a correlation

coefficient matrix. The statistic output obtained by WWW data analysis and the correlation

coefficient matrix are shown in Table II-4-3-1-2 and 3, respectively. In this table, correlation

coefficients 0.5 or larger that are assumed high in correlation are shown in a bold-faced type. For

instance, it is seen that the elements showing high correlation with the main, metallic element Zn of

SEDEX deposits are Cd, Ag, Pb, Sb, Hg, Cu, S and Au.

5) Calculation result

The matrix of the principal component loadings obtained is shown in Table II-4-3-1-4. The

relation of each principal component to the elements is shown in Fig.II-4-3-1-1. The principal

component scores of the 197 samples calculated based on the principal component loadings are

shown in Table II-4-3-1-5 together with the geological description etc. In Table II-4-3-1-4 (afore

mentioned), figures whose absolute values of loadings are 0.5 or larger are shown in a bold-faced

type. (The plus and minus signs are relative to each other, and there is no problem in the

interpretation even if all signs are reversed per principal components.) The cumulative contribution

rates of the six principal components extracted are 74%. Since the contribution rates of the first three

principal components (PC1, PC2 and PC3) accounts for more than 50%, a geochemical feature of

197 samples in these four areas can be almost explained by these three principal components. The

features of the three main principal components presumed from these diagrams are shown as follows.

1st principal component (PC1)

Al, Ti, V, Be, Mg, K, Ni, Fe, Co, and Ba show highly negative correlation (principal

component loadings below-0.5) with the 1st principal component. They are presumed to be principal

components that represent a composition of a certain kind of rock. Because pelitic rocks (shale and

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Table II-4-3-1-2 Statistics of the 197 samples for the SEDEX/VMS exploration

MeanUnbiased

estimate ofpopulation

Standarddeviation

logAu -2.503 0.123 0.350

logHg -2.043 0.225 0.475

logAg -0.493 0.229 0.479

Al 7.582 9.952 3.155

logAs 1.164 0.178 0.422

logBa 2.719 0.117 0.342

logBe 0.289 0.137 0.370

logBi 0.111 0.130 0.361

logCa -0.707 0.232 0.481

logCd -0.262 0.329 0.573

logCo 0.903 0.125 0.354

Cr 62.203 1231.867 35.098

logCu 1.253 0.465 0.682

logFe 0.508 0.079 0.280

K 2.637 1.474 1.214

Mg 0.812 0.183 0.428

logMn 2.593 0.175 0.419

logMo -0.096 0.171 0.413

Na 0.911 0.352 0.593

logNi 1.343 0.087 0.294

logP 2.761 0.114 0.338

logPb 1.254 0.807 0.898

logS -1.777 0.601 0.775

logSb 0.458 0.072 0.269

logSr 1.838 0.113 0.336

Ti 0.309 0.019 0.137

V 78.091 1886.073 43.429

logW 0.837 0.062 0.249

logZn 2.032 0.398 0.631

Table II-4-3-1-3 Correlation coefficient matrix of 29 elements for the 197 geochemical samples

logAu 1.000logHg 0.453 1.000logAg 0.697 0.728 1.000

Al -0.299 -0.089 -0.244 1.000logAs 0.225 0.143 0.186 0.170 1.000logBa -0.429 -0.019 -0.180 0.563 0.070 1.000logBe -0.145 -0.007 -0.031 0.787 0.227 0.524 1.000logBi 0.656 0.117 0.496 -0.110 0.109 -0.185 0.061 1.000logCa 0.098 -0.007 0.069 0.089 -0.030 0.060 0.143 0.095 1.000logCd 0.595 0.648 0.756 -0.148 0.238 -0.116 0.016 0.332 0.171 1.000logCo 0.171 0.075 0.092 0.486 0.065 0.104 0.546 0.263 0.298 0.182 1.000

Cr -0.072 -0.103 -0.070 -0.342 -0.277 -0.140 -0.426 -0.088 -0.200 -0.133 -0.232 1.000logCu 0.523 0.304 0.451 0.072 0.279 0.015 0.155 0.384 0.165 0.467 0.248 -0.014 1.000logFe 0.344 0.110 0.187 0.583 0.370 0.106 0.517 0.361 0.143 0.239 0.612 -0.341 0.507 1.000

K -0.333 -0.107 -0.226 0.858 0.188 0.671 0.717 -0.167 0.021 -0.168 0.301 -0.259 -0.053 0.337 1.000Mg 0.005 -0.143 -0.150 0.772 0.152 0.224 0.626 0.157 0.170 -0.086 0.585 -0.303 0.188 0.713 0.531 1.000

logMn 0.282 0.288 0.406 0.026 0.108 0.091 0.206 0.184 0.396 0.488 0.346 -0.094 0.445 0.267 -0.022 0.161 1.000logMo 0.411 0.100 0.331 -0.519 0.168 -0.290 -0.343 0.292 0.024 0.314 -0.097 0.273 0.311 -0.144 -0.432 -0.338 0.214 1.000

Na -0.245 -0.239 -0.185 0.189 -0.179 -0.065 0.121 -0.050 0.315 -0.170 0.239 -0.115 -0.140 0.091 -0.037 0.194 0.001 -0.233 1.000logNi -0.123 -0.038 -0.117 0.643 0.050 0.303 0.551 0.048 0.282 -0.002 0.813 -0.135 0.229 0.566 0.428 0.636 0.241 -0.237 0.219 1.000logP -0.116 -0.075 -0.101 0.193 0.052 0.218 0.243 -0.020 0.613 -0.058 0.214 -0.250 0.063 0.106 0.167 0.136 0.133 -0.064 0.263 0.209 1.000

logPb 0.508 0.522 0.731 -0.257 0.266 -0.052 -0.077 0.310 0.064 0.647 -0.147 -0.072 0.521 0.058 -0.189 -0.222 0.393 0.369 -0.231 -0.244 -0.063 1.000logS 0.588 0.450 0.610 -0.215 0.272 -0.114 -0.062 0.401 0.225 0.595 0.038 -0.158 0.474 0.215 -0.170 -0.067 0.296 0.437 -0.208 -0.130 -0.004 0.612 1.000

logSb 0.615 0.683 0.915 -0.234 0.182 -0.164 -0.053 0.428 0.061 0.692 0.031 -0.058 0.372 0.168 -0.222 -0.161 0.343 0.235 -0.195 -0.154 -0.094 0.652 0.495 1.000logSr -0.272 -0.038 -0.113 0.300 -0.133 0.366 0.259 -0.114 0.681 -0.053 0.198 -0.235 -0.082 0.056 0.217 0.137 0.109 -0.329 0.434 0.288 0.569 -0.106 0.020 -0.126 1.000

Ti -0.231 -0.062 -0.225 0.867 0.129 0.449 0.664 -0.082 0.127 -0.125 0.474 -0.245 0.101 0.580 0.695 0.718 0.092 -0.504 0.220 0.592 0.185 -0.211 -0.233 -0.192 0.258 1.000V -0.071 0.140 0.054 0.837 0.274 0.437 0.709 0.020 0.073 0.047 0.417 -0.302 0.220 0.567 0.705 0.718 0.151 -0.283 0.001 0.551 0.172 -0.013 0.070 -0.008 0.211 0.726 1.000

logW 0.565 0.169 0.353 -0.054 0.172 -0.135 0.043 0.485 0.029 0.442 0.288 0.035 0.515 0.389 -0.130 0.220 0.350 0.247 -0.190 0.127 -0.123 0.301 0.334 0.301 -0.207 0.012 0.035 1.000logZn 0.548 0.649 0.761 0.068 0.346 0.024 0.222 0.295 0.113 0.794 0.277 -0.221 0.586 0.440 -0.004 0.085 0.536 0.235 -0.143 0.140 0.007 0.694 0.555 0.687 -0.102 0.089 0.261 0.399 1.000

logAu logHg logAg Al logAs logBa logBe logBi logCa logCd logCo Cr logCu logFe K Mg logMn logMo Na logNi logP logPb logS logSb logSr Ti V logW logZn- 293～294 -

Table II-4-3-1-4 Principal component loading matrix after varimax rotation for the 197 geocheminal samples

PC1 PC2 PC3 PC4 PC5 PC6 Contributionratio

logAu 0.147 -0.567 0.669 -0.084 0.163 -0.052 0.827logHg -0.014 -0.857 -0.090 -0.099 -0.076 0.076 0.764logAg 0.104 -0.916 0.225 -0.042 0.031 0.000 0.903

Al -0.946 0.125 -0.139 0.071 0.034 0.110 0.949logAs -0.225 -0.170 0.161 -0.044 0.706 0.067 0.610logBa -0.532 0.013 -0.591 0.149 0.198 -0.185 0.728logBe -0.833 -0.051 -0.066 0.153 0.122 0.061 0.742logBi -0.012 -0.285 0.691 0.021 0.127 -0.035 0.576logCa -0.060 -0.106 0.109 0.884 -0.047 -0.119 0.824logCd 0.017 -0.839 0.199 0.048 0.052 -0.133 0.767logCo -0.640 -0.088 0.418 0.237 -0.296 -0.161 0.762

Cr 0.336 0.154 -0.122 -0.298 -0.310 -0.586 0.679logCu -0.208 -0.445 0.373 0.065 0.252 -0.465 0.664logFe -0.707 -0.178 0.518 0.047 0.117 0.007 0.817

K -0.795 0.117 -0.361 0.000 0.212 0.051 0.823Mg -0.826 0.147 0.326 0.067 -0.015 0.032 0.815

logMn -0.179 -0.486 0.113 0.305 -0.069 -0.477 0.606logMo 0.462 -0.183 0.284 -0.010 0.325 -0.509 0.693

Na -0.101 0.200 0.144 0.488 -0.437 0.275 0.577logNi -0.744 0.069 0.170 0.219 -0.286 -0.247 0.778logP -0.128 0.076 -0.064 0.792 0.156 0.008 0.678

logPb 0.174 -0.768 0.036 0.013 0.316 -0.145 0.742logS 0.134 -0.599 0.276 0.166 0.403 -0.100 0.653

logSb 0.114 -0.871 0.170 -0.069 -0.005 0.070 0.811logSr -0.195 0.013 -0.247 0.814 -0.141 0.123 0.796

Ti -0.873 0.099 -0.064 0.071 -0.071 0.063 0.789V -0.851 -0.124 -0.078 0.026 0.173 0.039 0.777

logW -0.121 -0.281 0.577 -0.130 0.082 -0.398 0.608logZn -0.219 -0.847 0.170 0.009 0.134 -0.131 0.830

Sum of loadingsquare

6.810 5.887 2.954 2.734 1.663 1.540

Contributionratio

23.483 20.298 10.186 9.428 5.733 5.310

Cumulativecontribution

ratio23.483 43.781 53.967 63.395 69.129 74.439

- 295 -

Table II-4-3-1-5 Principal component scores and sample descriptions for the 197 geochemical samples

Serial SampleNo. No.

1 A02CX020 Aguilar Mina Aguilar Aguilar Granite 0.434 -0.496 0.066 4.417 -0.725 1.8652 A02CX021 Aguilar Mina Aguilar quartzite 4.352 1.154 -0.602 -2.980 2.546 -2.0183 A02SX001 Aguilar Mina Aguilar silicified shale with po -0.911 -0.727 0.238 2.003 1.496 -2.0534 A02SX002 Aguilar Mina Aguilar galena ore 0.499 -14.517 3.901 1.342 -2.680 0.4495 A02SX003 Aguilar Mina Aguilar sandstone 1.240 -0.912 0.744 1.955 -1.433 0.9216 A02SX004 Aguilar Mina Aguilar quartzite -2.599 -0.809 -0.908 0.903 0.185 -0.2487 A02CX007 Aguilar Mina Esperanza ga-zb ore 3.459 -19.688 -1.260 -4.324 -4.424 2.9178 A02CX008 Aguilar Mina Esperanza shale -0.332 -14.407 -3.332 1.181 -0.891 0.6309 A02SX016 Aguilar Mina Esperanza phillitic slate -2.992 -5.554 -1.965 0.534 2.136 -0.040

10 A02SX017 Aguilar Mina Esperanza shale -2.513 0.403 0.135 0.469 -0.188 0.18611 A02SX018 Aguilar Mina Esperanza shale -0.702 0.376 -1.175 -0.473 1.295 1.00412 A02SX019 Aguilar Mina Esperanza shale -1.929 0.088 0.248 0.358 1.060 -0.58713 A02SX020 Aguilar Mina Esperanza phillitic state -3.276 0.078 -1.522 0.188 0.546 -0.68714 A02CX012 Aguilar Mina Oriental breccia ore 0.559 -10.148 6.038 2.144 2.456 -2.95815 A02SX005 Aguilar Mina Oriental sed. and metamorphic -0.331 0.466 0.196 0.747 0.484 0.25916 A02SX006 Aguilar Mina Oriental sandstone -2.579 0.171 -1.267 1.167 0.338 -0.12117 A02CX013 Aguilar Mina Pirita massive quartzite 4.121 -1.209 -2.183 -3.640 0.870 -1.48418 A02CX014 Aguilar Mina Pirita py-mv-qtz-vein 0.161 -3.647 -0.874 -0.403 -0.474 -7.54319 A02CX015 Aguilar Mina Pirita quartzite breccia 3.916 1.776 5.491 -3.595 0.977 -3.08920 A02CX016 Aguilar Mina Pirita bedded quartzite -2.815 -0.137 -0.919 0.052 1.368 -1.19321 A02CX017 Aguilar Mina Pirita shale -1.995 -1.553 -1.888 -0.318 2.244 -2.00222 A02CX018 Aguilar Mina Pirita altered zone -0.611 -2.546 -1.974 -0.647 4.385 -0.83723 A02CX019 Aguilar Mina Pirita pyrite-quartz 3.902 -4.043 4.587 -1.754 3.784 1.12324 A02SX007 Aguilar Mina Pirita shale -2.033 0.863 0.694 0.878 0.378 0.10525 A02SX008 Aguilar Mina Pirita shale -2.624 0.475 -0.832 0.080 0.396 -0.16026 A02CX009 Aguilar Mina Rincon shale? -0.110 -3.161 -2.943 -1.051 2.776 0.85527 A02CX010 Aguilar Mina Rincon po+zb quartz ore 6.300 -1.053 -0.894 -1.494 2.804 0.87428 A02CX011 Aguilar Mina Rincon shale? 4.426 -5.023 6.040 -4.037 4.812 0.00329 A02SX021 Aguilar Mina Tapada sandstones 3.181 -0.224 0.296 1.946 -2.359 1.13730 A02SX022 Aguilar Mina Tapada conglomerate 4.066 -0.792 0.859 6.906 0.570 -0.20231 A02CX001 Aguilar Qda.Despensa lim.conglomerate 2.032 0.413 0.402 0.180 1.130 1.63932 A02CX002 Aguilar Qda.Despensa pyritized zone 3.671 -0.371 1.538 4.884 1.670 -0.40733 A02SX010 Aguilar Qda. Despensa sandstones -0.996 1.037 0.382 0.254 1.053 0.50734 A02SX011 Aguilar Qda. Despensa stromatolite 2.622 -0.510 -0.439 4.551 0.122 -0.31835 A02SX012 Aguilar Qda. Despensa phillitic slate -1.509 -0.745 -0.847 -0.139 0.991 0.56336 A02SX013 Aguilar Qda. Despensa phillitic shale -2.060 0.708 -0.040 -0.041 1.108 -0.16037 A02SX014 Aguilar Qda. Despensa phillitic slate -1.295 0.775 0.207 0.129 0.451 0.11038 A02SX015 Aguilar Qda. Despensa quarzite -2.492 0.184 -2.024 -1.003 1.844 -0.73939 A02SX023 Aguilar Qda. Polvorines shale and s.s. -2.657 0.084 -1.552 -0.604 0.317 -0.23340 A02KK018 Aguilar Qda. Quebralena shale -2.527 0.937 1.024 -0.008 0.410 -0.22841 A02KK023 Aguilar Qda. Quera shale -2.343 0.543 0.038 -0.374 -0.934 -0.28942 A02CX003 Aguilar Qda. Rio Grande pyritized zone -2.182 0.754 1.191 1.434 0.847 -1.77943 A02CX004 Aguilar Qda. Rio Grande lim. pyrite-rich 0.364 1.125 12.424 1.087 1.169 -1.49744 A02CX005 Aguilar Qda. Rio Grande black shale 0.212 1.194 0.076 3.704 1.477 -1.13645 A02CX006 Aguilar Qda. Rio Grande siliceous s.s. -1.143 1.054 -0.153 -0.209 0.976 0.78846 A02SX009 Aguilar Qda. Vacas shale -2.403 -0.020 -1.722 0.940 -1.149 -0.216

47 A02CX028 Pumahuasi Chaussette north bedded f.s.s.&shale 3.340 1.231 1.171 1.134 0.121 0.65748 A02CX024 Pumahuasi Mina Alejandro bedded shale -0.411 0.131 -1.469 -0.278 0.769 0.97549 A02CX025 Pumahuasi Mina Belgica bedded shale -0.658 0.414 -0.379 -0.224 0.454 0.56850 A02CX027 Pumahuasi Mina Chaussette hard shale 0.624 -2.572 -2.394 0.992 0.967 0.55851 A02CX022 Pumahuasi Mina Pumahuasi bedded shale -1.757 -1.173 -0.502 0.181 0.853 -0.72252 A02CX026 Pumahuasi Mina Sol de Mayo bedded shale -1.443 -0.324 -0.540 -0.448 1.079 0.97253 A02CX023 Pumahuasi NW Cerro Morado bedded shale&s.s 1.059 0.788 1.030 0.222 1.002 0.591

PC6PC2 PC3 PC4 PC5District Locality Rock PC1

- 296 -

Fig.

II-4

-3-1

-1 D

iagr

ams o

f pri

ncip

al c

ompo

nent

load

ings

for

the

197

geoc

hem

inal

sam

ples

PC1

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

PC2

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

PC3

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

PC4

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

PC5

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

PC6

-1.0

-0.5

0.0

0.5

1.0

logAu

logHg

logAg Al

logAs

logBa

logBe

logBi

logCa

logCd

logCo

Cr

logCu

logFe K

Mg

logMn

logMo

Na

logNi

logP

logPb

logS

logSb

logSr

Ti V

logW

logZn

Load

ingG

raph

s

- 297 -

slate, etc.) generally show a negative high score, and sandstones (sandstone and quartzite, etc.) a

positive high score, these are presumed to be a principal component, which is related to the amount

of the muddy material. The 1st principal component is similar to the 1st principal component for the

35 drill core samples from La Colorada area, and the 2nd principal component for the 72 drill core

samples from the Aguilar range area.

2nd principal component (PC2)

Ag, Sb, Hg, Zn, Cd, Pb, S, and Au show highly negative correlation (principal component

loadings below-0.5) with the 2nd principal component. Because these elements are common in the

Esperanza ore body being thought to be a typical model of SEDEX deposits, the 2nd principal

component is presumed to be the principal components showing the SEDEX mineralization. The 2nd

principal component is discriminated as the 1st principal component for the 72 drill core samples

from the Aguilar range area, and the 3rd principal component for the 35 drill core samples from La

Colorada area.

3rd principal component (PC3)

Bi, Au, W, Fe, and Ba show highly positive correlation (principal component loadings :0.5

or larger) with the 3rd principal component. For the 35 drill core samples of La Colorada area, these

elements plus Co and Cu are extracted as the 2nd principal component with high correlation.

Because these are common in La Colorada ore bodies consisting mainly of pyrrotite, accompanied

by chalcopyrite, marmatite, arsenopyrite, galena and ilmenite, and also a small amount of

bismuthinite, natural bismuth, and electrum, they are presumed to be the principal components

showing the mineralization (VMS?) represented by La Colorada deposits.

6) Score distribution of principal components

Classification of each principal component scores is made based on frequency distribution

(Fig.II-4-3-1-2) of each principal component score.

1st principal component (PC1)

Scores of the 1st principal component are distributed within the range of -4.895 to +7.012.

These are presumed to be principal components that relate to a kind of composition (perhaps grain

size) of the rock, and have significant meanings both on the positive side and negative side. So, the

symmetrical classification centering on the zero value was adopted.

Score distributions in the Aguilar Range, Pumahuasi, Santa Victoria Mountains and La

Colorada areas are shown in Fig.II-4-3-1-3 (1) - (4). The blue circles and yellow circles nearly

correspond to shale and sandstone (including phyllite) of the sample descriptions, respectively.

- 298 -

Fig.II-4-3-1-2 Histograms of PC scores for 197 geochemical samples

PC1

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

PC2

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-20 -17.5 -15 -12.5 -10 -7.5 -5 -2.5 0

PC3

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-4 -2 0 2 4 6 8 10 12

PC4

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

PC5

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-5 -4 -3 -2 -1 0 1 2 3 4

PC6

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

-8 -7 -6 -5 -4 -3 -2 -1 0 1 2

- 299 -

- 300 -

- 301 -

- 302 -

- 303 -

2nd principal component (PC2)

Scores of the 2nd principal component, ranging from -19.688 to +2.295, show a

distribution extremely biased to the minus side. Because the loadings of the elements highly

correlated with the 2nd principal component shows minus (Table II-4-3-1-4 referred to earlier), it

indicates that the higher scoring is on the minus side, the stronger the elements of these principal

components are. Because the 2nd principal component predict the possibility of being SEDEX

deposits, the higher the scoring on the minus side, means the stronger the possibility of SEDEX

deposits. In Fig.II-4-3-1-4 (1) - (4), the values of -1.000 or less of 18 samples corresponding to about

9% of the whole are displayed in red circles, furthermore, the values of -5.000 or less of six samples

corresponding to about 3% of the whole displayed in a large red circle. 13 samples out of 18 samples

with values of -1.000 or less and six samples with values of-5.000 or less as well are collected from

ore bodies and their surroundings of Esperanza, Aguilar, Oriental and Pirita (Rincon) in the Aguilar

Ranges area. Two samples of the other five samples with values of -1.000 or less are all shale in the

vicinity of Chaussette ore deposits of the Pumahuasi area and in the vicinity of Pumahuasi ore

deposits. The other three samples are all shale samples collected respectively in the upstream of

Vicunayo valley of North route, in the west of Santa Victoria town and in La Cienaga ore deposits of

South route in Santa Victoria Mountains area. No high score sample has been recognized in La

Colorada area.

In Aguilar Range area, the existence of the SEDEX mineralization was geochemically

presented because of a high score distribution of the 2nd principal component not only in Esperanza

deposits, which is assumed to be a typical model of SEDEX deposits, but also in Aguilar deposits,

Oriental and Pirita mineral showings. However, in Rio Grande mineral showings thought to be

similar SEDEX mineralization located about 3km northeast of Esperanza deposits, high score of the

2nd principal component has not been obtained against our forecast.

It has been thought that the Pumahuasi area is covered by the sediments of Acoite

Formation which is the upper part of the Santa Victoria Group, and the existence of SEDEX

mineralization hosted in the lower part has been regarded as negative. However, Because of a high

score of the 2nd principal component obtained, further examination is required on the shale in the

vicinity of Chaussette deposits and Pumahuasi deposits of this area.

In Santa Victoria Mountains area, a lot of samples (104 samples) were examined;

nevertheless, only three samples show high scores of the 2nd principal component. Furthermore, the

score values are not remarkably high, ranging from +1.2 to +1.4, even though they are classified in

high score group. Among these samples, however, two samples from upstream of Vicunayo valley

and from the west of Santa Victoria town indicated the possibility of the existence of the SEDEX

mineralization, according to the discriminant analysis that both exist in the vicinity of the ore zone of

- 304 -

- 305 -

- 306 -

- 307 -

- 308 -

the hanging and foot walls boundary. Other high score sample of A02CX070 is collected in La

Cienaga mineral showings, and, it is suggested that they are ore zone itself in the foot walls of ore

zone according to the discriminant analysis.

In La Colorada area, high score of the 2nd principal component is not recognized according

to the result of the principal component analysis of these 197 samples. However, as the result of the

principal component analysis, intended only for 35 core samples of the La Colorada area, the

possibility of the existence of SEDEX mineralization in this area still exists, because principal

components showing SEDEX mineralization corresponding to the 2nd principal components is

discriminated as the 3rd principal component.

3rd principal component (PC3)

Scores of the 3rd principal component are distributed within the range from -3.332 to

+12.424. Because the loadings of the elements highly correlated with the 3rd principal component

indicate plus (Table II-4-3-1-4, referred to earlier), it is shown that the elements of the principal

component are stronger as score becomes higher. The possibility of the principal component that

shows mineralization represented by La Colorada deposits can be forecast from the 3rd principal

component, it is indicated that the possibility of this mineralization becomes stronger as the score

becomes higher. In Fig.II-4-3-1-5 (1) - (4), 27 samples with scores of +1.000 or larger that account

for about 14% of the whole are displayed in red circle, 11 samples with scores of +2.000 or larger

that account for about 6% of the whole in medium red circles, furthermore, five samples with scores

of +5.000 or larger that account for about 2.5% of the whole in a large red circle.

Out of 27 samples with the scores of +1.000 or larger, 13 samples are collected in La

Colorada area, nine samples in the Aguilar Range area, three samples in the Santa Victoria

Mountains area, and two samples in the Pumahuasi area. Further, out of 11 samples with the scores

of +2.000 or larger, six samples are collected from ore bodies of Rio Grande, Pirita (Rincon),

Oriental, and Aguilar and the surrounding of their ore bodies excluding Esperanza deposit in the

Aguilar Range area, and five samples are collected around the surrounding of La Colorada deposits

in La Colorada area, in its northern part, and in Limeca in its southern part. Out of five samples with

the scores of +5.000 or larger, four samples are collected in Rio Grande, Pirita (Rincon), and

Oriental excluding Esperanza deposits in the Aguilar Range area and one sample is collected from

chlorite alteration zones around La Colorada deposits in La Colorada area.

In Aguilar deposits and its peripheral mineral showings, mineralization of La Colorada

deposits type overlaps on SEDEX mineralization area. As the result of the principal component

analysis on 197 samples, however, the above-mentioned phenomenon cannot be recognized with

regard to Esperanza deposits. Rio Grande mineral showings so far thought to be SEDEX

mineralization located in the northeast of Esperanza deposits, and Despensa mineral showings

- 309 -

- 310 -

- 311 -

- 312 -

- 313 -

located in about 4km in the southeast direction of Tapada and resembled Despensa mineral showings

to Rio Grande though it is very small-scale. A high score of the 3rd principal component exists while

a high score of 2nd principal component, which shows SEDEX mineralization is not recognized.

In the Pumahuasi area, in the alternation of fine-grain sandstone and shale beds in the

northern part of Chaussette deposits and in the alternation of micaceous shale and fine-grain

sandstone beds in the northwest foot of Cerro Morado on the area south edge (small-scale alteration

zone by ASTER image), a high score of the 3rd principal component has been obtained. It is forecast

that the former has some relation to Chaussette deposits of Pb-Zn vein deposits type located in the

south, while the latter, a relation with the small-scale alteration zone discriminated by ASTER image

is expected.

In Santa Victoria Mountains area, in the same manner as the case of the 2nd principal

component, the number of the samples with the high score of the 3rd principal component is only

three; moreover, the scores only range from +1.10 to +1.65, not being remarkably high in score even

though they are supposed to be of a high score.

In La Colorada area, out of 40 samples provided for the study, 13 samples show high score

(+1.000 or larger). Nine samples are distributed to the south up to Limeca along the NE-SW

extension trend of Cobres Eruptive Oire (Middle Ordovician) distributed to the north around La

Colorada deposits and the four samples are distributed along the valley in the south of Chuschuyo

mountain.

7) Conclusion

In four areas of Aguilar Ranges area, Pumahuasi area, Santa Victoria Mountain area and La

Colorada area selected to explore SEDEX/VMS deposits, principal component analysis, one of the

unsupervised classification methods was carried out by using the collected analytical data of 197

samples. As a result, it was clarified that the wide viewed geochemical variation in this region can be

explained by three principal components (One primary principal components which relate to

composition of rock and the secondary and ternary principal components that relate to

mineralization). One of the principal components that relate to mineralization is the secondary

principal components, which shows highly negative correlation with Ag, Sb, Hg, Zn, Cd, Pb, S, and

Au (principal components loading of below -0.5), is presumed to be principal components that show

SEDEX mineralization. Another principal components, which relate to mineralization, are the

ternary principal components, showing highly positive correlation with Bi, Au, W, Fe, and Ba,

(principal component loading: 0.5 or larger). These are presumed to be principal components, which

show mineralization represented by La Colorada deposits. The following is clarified from the score

distribution of the secondary and the ternary principal components that relate to ore deposits.

- 314 -

In Aguilar Range area, it was clarified that SEDEX mineralization related, not only with

Esperanza deposits which is assumed to be a typical model of SEDEX deposits, but also with

Aguilar deposits, Oriental mineral showings, and Pirita mineral showings.

In Aguilar deposits and mineral showings around its periphery except Esperanza deposits,

it turned out that the existence of mineralization represented by La Colorada deposits overlapped

with that of SEDEX mineralization.

On the other hand, with regard to Rio Grande mineral showings that existed in the

neighborhood of the northeast of Esperanza deposits and were thought to show similar SEDEX

mineralization, in contradiction to the forecast, it turned out that mineralization represented by La

Colorada deposits was related rather than SEDEX mineralization.

No one can say otherwise that Santa Victoria Mountain area is a region where

mineralization is scarce so long as judging it only from the designated ground chemical data of 104

samples. However, because a geochemical symptom of SEDEX mineralization is observed, though it

is weak, the possibility of the SEDEX mineralization existence is not denied.

In La Colorada area, naturally, mineralization represented by La Colorada deposits

remarkably develops. This mineralization is distributed indistinctly harmonizing with (NE-SW) the

extension of LaCobres Complejo Eruptive Oire (Middle Ordovician). In the La Colorada area

including Limeca in question, the result suggesting the association of SEDEX mineralization has not

been obtained. However, from the result of a partial principal component analysis, intended for only

35 samples of the cores of the La Colorada area, the possibility of the SEDEX mineralization in this

region including Limeca still exists, because principal components suggesting this SEDEX

mineralization have been discriminated

(2) SEDEX/VMS deposits

Targeting the exploration of SEDEX/VMS deposits in 4 areas, field surveys and sample

collections were made and various laboratory examinations including fossil identification and

chemical analysis were carried out in order to clarify petrological, paleontological and geochemical

features of the SEDEX/VMS ore horizon and their hanging and foot walls and to discover horizon

similar to those of known SEDEX ore deposits. To understand paleontological stratigraphy, which is

the essential factor for SEDEX deposits, five samples in total for Conodont identification and 19

samples in total for the pollen identification were collected. Only among the limestone of the Santa

Rosita Formation of the lower part of the Santa Victoria Group in the vicinity of Santa Victoria town,

Rossodus tenuis (Miller, 1980), and Drepanoistodus sp. were identified, mixed with gastropod and

brachiopod, and it was clarified that this was Tremadocian Deposits (absolute age of almost 487-

489m.y) of the lower part of the regional Ordovician.

- 315 -

The principal component analysis was made by using the analytical data of 197 rock

samples in total collected from the four areas. In addition, the discriminant analysis and the principal

component analysis were made by using the obtained analytical data of drilling cores in Aguilar

Range area and the La Colorada area, where respectively Esperanza ore bodies of SEDEX-type and

La Colorada ore bodies assumed to be VMS-type were intersected by drillings. As a result of the

principal component analysis, the following facts relating to mineralization were clarified.

In Aguilar Range area, SEDEX mineralization highly correlated with Ag, Sb, Hg, Zn, Cd,

Pb, S and Au contributes not only to Esperanza deposits, which is assumed to be typical model of

SEDEX deposits, but also to Aguilar deposits, Oriental and Pirita mineral showings. In Aguilar

deposits and its peripheral mineral showings except for Esperanza deposits, mineralization

represented by the La Colorada deposit and highly correlated with Bi, Au, W, Fe and Ba exists while

overlapping with SEDEX mineralization. To the Rio Grande mineral showings located in about 3km

northeast of Esperanza deposits, mineralization represented by La Colorada deposits contributes

rather than to the SEDEX mineralization.

In Santa Victoria Mountains area, since a geochemical indication of SEDEX mineralization

is recognized, though not remarkable, the possibility of the existence of the SEDEX mineralization is

not to be denied.

In the La Colorada area, the mineralization represented by La Colorada deposits

remarkably develops naturally. This mineralization is distributed indistinctly harmonizing with in the

NE-SW extension trend of the La Cobres Faja Eruptive del Puna (Middle Ordovician). As a result of

local principal component analysis for only drilling cores of La Colorada deposits, the principal

component, which suggests SEDEX mineralization, is extracted. For this reason, the possibility of

the existence of SEDEX mineralization in this area including Limeca area still exists.

- 316 -

4-3-2 Porphyry copper and epithermal type deposits (1) Hydrothermal alteration [Porphyry copper deposits]

Before examination of hydrothermal alteration accompanying porphyry deposits in NOA region, let's consider Bajo de la Alumbrera deposits and Agua Rica deposits in Catamarca State, representatives whose data has been made public so far.

Baja de la Alumbrera deposits are porphyry copper/gold deposits whose host rock are Farallón Negro volcanic complex of the Miocene and dacitic porphyry (about 7 Ma), which intrudes into them. A primary alteration zone in Bajo de la Alumbrera is composed of the following four facies running from the center towards the fringe as a concentric circle: (1) Quartz-magnetite ±k feldspar alteration, (2) Potassic alteration, (3) Chlorite - epidote (propylitic) alteration and (4) Feldspar destructive alteration. Mineralization of gold/copper mainly appears in (2) potassic alteration zones. (Pyrite is also seen in (3) propylitic zones, which is accompanied by small quantity of molybdenite, sphalerite and galena.) (Ulrich and Heinrich, 2001)

Agua Rica deposits are porphyry copper/gold deposits whose main host rock is feldspathic porphyry and breccia veins (8 - 5 Ma) intruding into basements and granite rocks of the Precambrian to Paleozoic, and are accompanied by small quantity of molibdenum. Hydrothermal alteration zones in Agua Rica deposits are a little more complicated than those in Bajo de la Alumbrera deposits. It is known from the period of generation that there are the following three facies: (1) Potassic alteration (accompanied by weak Cu - Mo mineralization), (2) Potassic alteration in the central part and prophylitic alteration around it (accompanying the main stage of Cu - Au - Mo mineralization with primary chalcopyrite as the main body) and (3) Phyllic - advanced argillic alteration (which is epithermal alteration, overprints (1) and (2), and accompanies mineralization of Cu - Au - Ag - As - Pb - Zn with covellite as the main). (Landtwing, et al., 2002)

In the Pancho Arias area where field survey was carried out this year, several hydrothermal alteration zones are observed. Among them, there is output of potassium alteration zones with quartz - biotite - potassium feldspar as the main body within the area of 1 km x several-hundred meters centering on monzonitic porphyry. In this zone, there is also outcrop of phyllic - argillic alteration zones characterized by mineral combination of quartz, sericite and kaolin and containing small to trace quantities of geothite and jarosite. As for the phyllic - argillic alteration zones, there is distribution of two long and narrow zones extending in parallel in the NE - SW direction around the old mine, and of small-scale zones in several places northwest of them. Propylite alteration zones made up of chlorite and epidote are distributed surrounding these alteration zones. Mainly molybdenite and small quantities of chalcopyrite and pyrite are mineralized in part of the potassium alteration zones, and mainly pyrite is mineralized in the phyllic - argillic alteration zones. Mineralization of these sulfide minerals forms dissemination and stringers. In addition, mainly silicification, sericitization, and partly chloritization, all of which accompany dissemination of sulfide mineral, are found in Las Burras and Incahuasi in the south part.

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In The El Pago area, alteration zones (phyllic - argillic alteration zones and propylite alteration zones) mainly made up of quartz, sericite, chlorite and clay mineral are distributed on the ground surface in the area of 4 km x 2 km extending from east to west. Around the center of them, potassium alteration zones where potassium feldspar (±biotite) is recognized are output. Distribution of quartz, sericite, chlorite and clay mineral spreads over the alteration zones, and ranges of propylite zones and phyllic-argillic alteration zones overlap each other. There are places where quartz stringers/networks exist in these alteration zones, and silicified zones are distributed around them. Gold is contained in some quartz veins.

In the case of El Alisar ore deposits, which were investigated last year (porphyry copper/gold deposits located about 40 km northeast of the El Pago area), alteration zones are distributed asymmetrically in a semi-circle/concentric-circle form. From its center to the outside, there is distribution of potassium alteration zones (characterized by biotite, quartz and potassium feldspar (microcline)), sericite - clay alteration zones and propylite alteration zones (Phase I’s report).

Characteristics of hydrothermal alteration zones accompanying porphyry mineralization in this zone are summarized from the above, as follows: alteration zones can be roughly divided into potassium alteration zones in the central part and propylite alteration zones in the periphery; porphpyric copper/gold ore deposits accompany potassium alteration zones, mainly. There is output of phyllic - argillic alteration zones made up of quartz, sericite and clay mineral, and two cases are recognized: where a phyllic - argillic alteration zone forms zonal structure with propylite zone or overlaps a propylite zone (El Pago, El Alisar), and where the state of output in such a form to cut a propylite zone is shown (Pancho Arias). In Agua Rica ore deposits, phyllic - highly argillic alteration is deemed to be of the epithermal period after the period of potassium alteration/propylite alteration, and the possibility that the stage of alteration is also different in the case of the Pancho Arias area can be considered.

[Epithermal gold deposits] Hydrothermal alteration in the Rachaite and Cerro Galán areas, field survey of both of which

was carried out this year, is accompanied by acid alteration of the high sulfur type. In the Rachaite area, there is distribution of two white alteration zones extending from south

to north in Miocene dacite lava. Both the eastern alteration zone (3 km x 0.7 km) and the western alteration zone (1.3 km x 0.4 - 0.5 km) are subjected to strong white argillization (composed of quartz/opal, sericite, sericite/montmorillionite mixed-layer mineral, chlorite, kaolin, alunite, jarosite, etc.) and limonitic alteration. In some alteration zones, quartz veins containing pyrite and Ag, Pb, Zn etc. exist, and the vein fringe is accompanied by a silicified/ seriticized alteration zone.

In the Cerro Galán area, several alteration zones have been detected from dacite in Galán caldera of the Miocene to Pleistocene. Almost all of these alteration zones are aligned along the caldera wall. The largest one of them is located in the northwest wall part of the caldera. This alteration zone is about 4 km in diameter and is an acid alteration zone mainly composed of kaolin.

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Besides it, small quantities of jarosite, sericite, chlorite and pyrite are recognized. About 500 m south of this place, there is output of a small-scale alteration zone group made up of alunite and kaolin. Indication of alteration of alunite, kaolin, sericite, etc. is recognized in the western part of Laguna Diamante.

Characteristics of hydrothermal alteration zones accompanying epithermal mineralization in this zone are summarized as follows: Alteration zones have properties of acid alteration with kaolin, sericite, montmorilonite, alunite, quartz, chlorite and jarosite as the main, and accompany dacitic caldera volcanic activities of the Miocene. Activities of hot water are controlled by tectonic movement in formation of a caldera, and are generated on the caldera wall or along faults, which occurred there. The main body of mineralization is pyrite, and, in the Rachaite area, mineralization of Pb/Zn, which is accompanied by Ag partly in veins, is recognized but is of very small scale. No noteworthy mineralization was recognized in the Cerro Galán area.

(2) Comparison of the results of the alteration analysis using the ASTER images with the results of the survey [Porphyry copper deposits]

In the Pancho Arias area, main alteration zones in three places were detected from alteration analysis with ASTER images used. As a result of alteration mineral identification by the use of the Iso-grain Model, those near the old mine in the Mina Pancho Arias show zonal structure of alteration zones (two zones were identified) presenting characteristics of sericite - kaolin - geothite (- jarosite) and alteration zones made up of chlorite and epidote around them. In the northwestern side of the old mine, several small-scale alteration zones mainly composed of sericite and kaolin were found inside and around alteration zones made up mainly of chlorite and epidote. Alteration zones were also detected in several places south of the Mina Pancho Arias. In Las Burras, although a large group of alteration zones is not recognized, in Incahuasi (south of Las Burras) and around it, alteration zones with long axis of 1 - 3 km which are composed of sericite and chlorite were grasped in several places.

Alteration zones detected near the Mina Pancho Arias almost agree with the following distribution areas of hydrothermal alteration zones presenting zonal structure mentioned in the previous section. (They consist of Potassic alteration zones (biotite - potassium feldspar) in the central part, phyllic - argillic alteration zones (quartz - sericite - clay mineral) surrounding them, and propylite alteration zones (accompanied by chlorite - epidote - calcite and pyrite) in the outside periphery.) Areas where sericite, kaolin and goethite (and jarosite) were detected in the satellite image correspond to phyllic - argillic alteration zones, and parts mainly made up of chlorite and epidote around them corresponds to propylite alteration zones. Though image analysis data has not been examined closely yet, calcite in addition to chlorite and epidote has been detected in the area corresponding to propylite zones. Detection of potassium alteration zones in the central part by means of satellite image analysis could not be tested because calculation of corresponding constituents has not been performed.

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A sericite - kaolin alteration zone in an alteration zone made up of chlorite and epidote, which was detected in satellite image analysis of the northwest part of the old mine in the Mina Pancho Arias this year, corresponds to a phyllic - argillic alteration zone in a propylite zone, and a part of it corresponds to the place where mineralization containing Au was recognized in this year’s field survey.

Regarding mineralization/alteration zones in the southern part of the Pancho Arias area, alteration zones composed of sericite and chlorite were detected in Incahuasi zone, and they almost correspond to mineralization/alteration zones (where silicification and sericitization - chloritization are recognized).

It was judged that an alteration zone made up of kaolin - sericite (and jarosite), detected from the satellite image around Abra Chaní in the northeastern part of the Mina Pancho Arias, might be that of Precambrian quartz sandstone (quartzite). As a result of the field survey, an alteration zone made up of chlorite or of chlorite - sericite, detected in the southwestern part of Incahuasi, proved to correspond to granite outcrops.

In The El Pago area, the area of 4 km x 2 km (extending from east to west) in the ASTER false color (VNIR) image presents a color tone which is remarkably different from the circumference and can be recognized as a large-scale alteration zone. In the results of alteration mineral identification, sericite, chlorite, geothite and a small quantity of epidote are found in the whole area of alteration zones. Kaolin and jarosite are detected partly in the alteration zones.

In El Pago place of mineral showings, alteration zones (phyllic - argillic alteration zones and propylite zones) mainly made up of quartz - sericite - chlorite and clay mineral are distributed as mentioned in the previous section. Around the center, potassium alteration zones where potassium feldspar (±biotite) is recognized are output, and silicified zones are distributed locally. When this alteration is interpreted as overlapping of potassium alteration zones in the central part, phyllic - argillic alteration zones and propylite alteration zones in the peripheral part, among these alteration zones, phyllic - argillic alteration zones and propylite zones almost correspond to the area where sericite, chlorite, geothite, epidote, kaolin and jarosite were detected in the image.

This place of mineral showings is located about 40 km northwest of Filo Colorado, a prospecting area of porphyry copper deposits. According to satellite image analysis, it is recognized that there is distribution of a group of alteration zones, which are located sporadically in the NE - SW, direction between Filo Colorado and El Pago, and which are composed of sericite/geothite (±kaolin). Furthermore, indication of a probable alteration zone is found 4 - 6 km northeast of El Pago. However, it is difficult to identify an alteration zone by the use of the satellite image because this area is a vegetation zone. Nevertheless, that the state of outcrop where indications of hydrothermal alteration such as the above are distributed sporadically in the NNE - SSW direction could be identified will be an important guide when mineralization in this zone is considered.

[Epithermal gold deposits]

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In the Rachaite area, alteration zones in two places, east and west, presenting a remarkable white color tone are clearly observed in the false color image. In the color-ratio composite, strongly anomaly areas, which agree with the white parts in the false color image, are detected. In the result of alteration mineral identification by the use of the Iso-grain Model, the color tone indicating an acid alteration zone of alunite - kaolin and a sericite alteration zone is detected from the same place. The color tone representing goethite and quartz is recognized there.

Both of these two white alteration zones extending from south to north agree with areas subjected to strong white argillization (mainly composed of quartz/opal - sericite - sericite/montmorilonite mixed-layer mineral and accompanied by kaolin, jarosite, chlorite, alunite, etc.) and limonitic alteration in dacite.

In the Cerro Galán area, several alteration zones have been detected from Galán caldera by LANDSAT TM and ASTER image analyses; the main alterations run along the caldera wall. From the result of alteration mineral identification, an alteration zone of 4 km in diameter on the northwest wall part of the caldera is judged to be an alteration zone composed of alunite, sericite and goethite with kaolin as the main. Five-hundred meters south of this alteration zone, a small-scale alteration zone group representing distribution of alunite and kaolin is detected, and indication of alteration of alunite - kaolin - sericite is recognized in the western part of Laguna Diamante.

In the results of X-ray analysis of alteration samples collected in the field survey of the Cerro Galán area, alteration mineral made up of a combination of sericite, chlorite and calcite was identified in many samples. A large quantity of kaolin was detected in some of them. In addition, trace quantities of jarosite and pyrite were recognized.

Following last year, detection of alteration zones by the use of false color images, color-ratio composites and the Iso-grain Model was carried out this year. Particularly, in alteration mineral identification by the use of the Iso-grain Model, analysis of alteration mineral was made for some scenes with 12 constituents (quartz, calcite, sericite, chlorite, epidote, kaolin, goethite, jarosite, alunite, gypsum, hematite and pyrophyllite) used as a reference. As a result, we could obtain data, which will be a good guide in the detection of alteration zones in the Pancho Arias and El Pago areas, as mentioned above. The effectiveness of and future tasks regarding alteration zone detection by this technique are organized as follows:

(i) Alteration related to porphyry primary mineralization in NOA region is potassic alteration, phyllic alteration, advanced argillic alteration and propylite alteration. Of these, finding of propylite zones by the use of satellite images is a very important guide in the stage of selecting zones to be covered by the method. From this point of view, it can be considered as an advance in development of technique that the scope of propylite (chlorite - epidote distribution) could be detected from the Pancho Arias and El Pago areas by ASTER image analysis in this survey. (ii) Argillic alteration zones such as NOA region can be easily recognized in false color images in dry areas with a little vegetation. It is, however, effective for analysis of alteration zones that constituents

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of those alteration zones can be identified by mineral identification technique. It is considered as a noteworthy result that, particularly, chlorite, sericite, kaolin and alunite could be detected as clay mineral. (iii) Regarding iron gossan in the superficial part of weathered zones, it is also worthy of notice that the degree of limonitic alteration could be detected sensitively. Hematite and jarosite could be also identified to some extent. (iv) As a future task, it is desired to develop a method of identifying potassium feldspar and biotite. If it becomes possible, the way for detection of potassic alteration zones, which are often outcrop in the central part of porphyry mineralization, will be opened. (v) In addition, it is one of the noteworthy results of this investigation and analyses that, with the merits of multi-band and highly-precise ASTER image data utilized, useful data for estimation of the tectonic line which had controlled mineralization/alteration could be obtained by extracting small-scale but important alteration zones.

(3) Structural control of the mineralization and hydrothermal alteration [Structural control of porphyry copper and epithermal gold deposits]

As is pointed out in last year’s report, it is recognized that distribution of porphyry and epithermal deposits in NOA region has a relationship from viewpoints of time and space with areas where Neogene volcanic rocks are intensively distributed. (See Chapter 6. Consideration - 6.1. Characteristics of tectonic structure and mineralization, and control of mineralization in last year’s report.) • A magmatic arc of the Miocene to Pliocene accompanied by porphyry copper deposits such as Los Pelambres and el Teniente in Chile is widely distributed over the whole Andes mountains around the Chile - Argentina boundary (called CVZ (Central Volcanic Zone): Ramos, 2000 etc.). NOA region is located in the east side of this magmatic arc, and four distribution areas of volcanic rocks are observed extending in the SE direction in an arm-like shape branching away from the magmatic arc itself spreading from south to north. Such arm-shaped distribution areas of Neogene volcanic rocks are called Arm Nos. 1 to 4 (volcanic rock arms), in order from the north. These arms agree with known wide-area NW-SE oriented lineaments or their extension part, respectively. According to the results of air-borne magnetic survey, the distribution of these arms shows good agreement with the short-wave magnetic anomalyl area. This is considered to indicate that it corresponds not only to effusive facies of volcanic rock but also to intrusion facies. In NOA region, several calderas of the Neogene are distributed, including Galán caldera whose scale is exceptional in the world. Volcanic activities of each arm are accompanied by such strong eruption activity that is characterized by formation of large-scale resurgent calderas and/or wide-area distribution of ignimbrite. • Regarding distribution of porphyry deposits in NOA region, Cerro Redondo (porphyry gold deposits) is located in Arm No. 1, Pancho Arias (porphyry copper/molybudenum deposits) and

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Organullo (porphypric gold deposits) are in Arm No. 2, Taca Taca (porphyry copper deposits) and Inca Viejo (porphypric copper/gold deposits) lie between Arm Nos. 2 and 3, El Arisar (porphpyric copper deposits) is in Arm No. 3, and Bajo de la Alumbrera (porphpyric copper/gold deposits), Agua Rica (porphypric copper deposits) and Filo Colorado (porphyry copper/gold deposits) are located in Arm No. 4. • Regarding epithermal deposits, Chocaya exists in Arm No. 1, Esperanza, Concordia, Bajos de Incachule and Organullo are located in Arm No. 2, Centenario lies between Arm Nos. 2 and 3, and Farallon Negro, Alto de la Blenda and Carmen deposits exist in Arm No. 4.

Distribution of Neogene Tertiary volcanic rocks from the northwestern part of Argentina to the northern part of Chile and locations of the four arms are shown in Fig. II-4-3-2-3-1.

Four arms representing Neogene volcanic activity in NOA region are distributed along NW-SE oriented lineaments crossing the range of the Andes Mountains, as mentioned above. The main ones of these lineaments have been already named, such as Calama-Olacapato-El Toro lineament and Archibarca lineament (Salfity, 1985, Hongn et al., 2002 etc.). These lineaments are interpreted as strike-slip faults (shifted to left) representing the shear belt accompanying subduction of Nazca plate, and are estimated to represent deep fracture, which controlled the rise of magma. Along these lineaments, volcanic activities were actively generated during the Miocene to Pliocene period. Fig. II-4-3-2-3-2 shows the regional geologic structure of NOA region and the north region of Chile adjoining the region.

As mentioned above, in NOA region, mainly magmatic activity of Miocene to Pliocene calc-alkaline volcanic rock is actively generated along the NW-SE oriented tectonic line in particular. The magmatic activity is accompanied by porphyry and epithermal mineralization/alteration.

As structural factors, which control calc-alkaline magmatic activity of the Neogene and mineralization/alteration accompanying them, the presence of these NW-SE oriented shear belts can be mentioned. Together with these, in Chile, the presence of the line structure crossing them, in other words, the importance of the crossing part of two tectonic lines, is pointed out. (It is pointed out by Richards (2000) and others that porphyry deposits in Chile, such as Quebrada Blanca, El Abra, Chuquicamata, Zaldivar, Chimborazo, Spence, La Escondida, El Sadovador and Potrerillos, are distributed along the Domeiko fault parallel to the subduction zone of Nazcaplate, and there is the tendency that deposits concentrate in the part of crossing an NW-SE oriented fault). Then, the possibility that such a structural factor exists is examined regarding NOA region below.

[Characteristics of the structural control of porphyry copper deposits] In the Pancho Arias area in NOA region, where field survey was carried out this year,

mineralization zones and hydrothermal alteration zones, such as the Mina Pancho Arias (Mina Vizcacheral), Las Burras, Incahuasi Norte and Incahuasi Sur, are distributed in the NNE-SSW direction over ten or several kilometers. As mentioned above, The Pancho Arias area is located in the

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volcanic rock distribution area of Arm No. 2, and it corresponds to the extension part of El Toro lineament as a shear belt of the Miocene to Pliocene. Porphyry mineralization/alteration in Pancho Arias zone is closely related to intrusion of monzonitic or dacitic porphyry of the Miocene. (See the section stating results of the field survey.) Ten rock bodies of acidic intrusive rock of the Miocene are exposed in this zone, and run in the NNE-SSW direction generally. These intrusive rocks correspond to acidic igneous activity of the Neogene in the east end part in the scope of El Toro lineament. That is, it can be interpreted that, in this zone, porphyry mineralization/alteration is/are controlled by activity of Miocene acid intrusive rock governed by a line structure in the NNE-SSW direction, which crosses it within the scope of Arm No. 2.

As for the El Pago area, because detailed geological investigation of the zone has not been carried out, its tectonic structure is not clear, unlike the Pancho Arias area. Characteristics of mineralization/alteration in the El Pago area based on the existing geological materials are as follows: (1) the El Pago area is in Arm No. 3 together with El Alisar, and it is located in the extension part of Archibarca lineament. Although details of mineralization have not been clarified, it is considered to be related to andesite or dacitic intrusive rock of the Neogene (or Miocene?). (2) About 40 km south of the El Pago area, porphyry deposits exist, such as Agua Rica and Filo Colorado (belonging to Arm No. 4). These are assumed to be formed in relation to activity of Farallón Negro composite volcanic rocks of the Miocene. (3) Deposits/mineralization zones such as the El Pago, Filo Colorado and Agua Rica run in a linear form along the direction of Sierra del Aconquija extending in the NE-SW direction. In the middle part and the extension part of them, alteration zones have been detected by ASTER image analysis.

According to the results of last year’s investigation of El Alisar zone, porphyry copper mineralization accompanies activity of El Alisar volcanic rocks/hypabyssal composite rocks (the result of age determination of rhyolite which composes a part of them = 8.0±0.2 Ma) similar to Farallón Negro composite volcanic rocks. Geological data with which porphpyric mineralization in the El Pago area and mineralization in the El Alisar area is considered to belong to a sequence of the same phenomenon has not been obtained. However, the presence of mineralization/alteration zones which continue sporadically from the El Pago area in the SSW direction is considered to indicate that the El Pago deposit are closely related to Filo Colorado and Agua Rica deposits. Thus, it is considered that porphyry mineralization/alteration in the El Pago, Filo Colorado and Agua Rica areas was controlled by the NE-SW oriented tectonic line crossing in the direction of distribution of Arm Nos. 3 and 4.

In this way, it seems possible that structural elements similar to those recognized in Chile also exist in the field of porphyry mineralization in NOA region. It is the presence of "line structure in the NNE-SSW direction which crosses it within the scope of belonging to Arm No. 2" seen in the Pancho Arias area, and interpretation that Miocene acid intrusive rock which is governed by this presence and porphyry mineralization/alteration accompanying its intrusive igneous activity. "Arrangement of deposits and mineralization/alteration along the NE-SW oriented tectonic line crossing in the direction of distribution of Arm Nos. 3 and 4" in and around the El Pago area (Sierra

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del Aconquija region) is also interpreted to imply the importance of a tectonic line crossing the shear belt accompanying plate activity indicated by the distribution direction of the arms. It is considered that, from these points of view, it is helpful for selection of potential prospecting areas of porphyry deposits to carry out work to find shear belts and tectonic lines crossing them and, in addition, to extract alteration zones by the use of the new technique mentioned above.

[Characteristics of the structural control of epithermal gold deposits] The Rachaite area is in the distribution of Neogene volcanic rock belonging to Arm No. 1,

and mineralization/alteration zones are considered to be made by the hydrothermal system formed in the relatively early stage (8 - 9 Ma) of dacitic Coranzuri composite caldera activity that occurred in the middle to upper Miocene. Mineralization/alteration zones in the Rachaite area are located inside the ring structure interpreted as the caldera wall, and they are composed of two parallel alteration zones extending in the N-S direction generally. Main lead/zinc veins in the Rachaite area are those with an almost N-S strike. From such a state of outcrop of deposits and alteration zones, it is considered that epithermal mineralization/alteration accompanies dacitic caldera volcanic activity of the Miocene and is controlled by N-S oriented cracks near the caldera wall.

Epithermal alteration zones in the Cerro Galán area are distributed mainly on the inside wall of dacitic Galán caldera formed in the Neogene. Galán caldera is a composite caldera whose scale is exceptional in the world, covering an area of 40 km from south to north x 25 km from east to west. It is located on Archibarca lineament representing a NW-SE oriented shear belt. As a Neogene volcanic rock distribution area, it belongs to the scope of Arm No. 3. From the fact that, in the distribution area of epithermal alteration zones, there are caldera faults and lineaments estimated to be radial faults crossing them, it is considered that there is the possibility that alteration zones in this zone were formed by the rise, along the fault crossing part, of hot water accompanying volcanic activity when the caldera structure was formed. As the structure that controlled the field of generation of epithermal mineralization, both in the Rachaite and Cerro Galán areas, the fault structure on or around the caldera wall accompanying formation of the caldera serves as a passage for hot water in the hydrothermal activity stage after the formation of the caldera.

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Chapter 5 Discussion

5-1 Mineralization and potentiality of existing mineral deposits

Tectonics in the northwestern part of Argentina was, as mentioned in Chapter 3, Part I, formed

by collision and accretion of micro continents on the southwest margin of Gondowana continent of the

upper Precambrian to the lower Paleozoic, and by cordillera type orogeny due to subduction of the

ocean plate from the west side, which has continued since the upper Paleozoic.

In the geological body of the Precambrian to the Quaternary developing in this area, there are

deposits each of which are closely related to the history of tectonics development and have

characteristics of its own age. Deposits of the Ordovician system, whose potential is considered to be

high are SEDEX-type lead and zinc deposits and volcanogenic massive sulfide deposits, while those

of the Neogene system are porphyry type copper and copper/gold deposits and epithermal gold

deposits.

The El Aguilar deposit classified as SEDEX type lead and zinc deposits exists in the lower

Ordovician Lampasar formation which is passive margin deposits to the eastern side of the north of the

survey area. The La Colorada deposit classified as volcanogenic massive sulfide deposit exists in the

Ordovician magmatic arc to the west of the north of the survey area.

The porphyry type copper and copper/gold deposits and the epithermal gold and silver deposit

are limited to the areas of four Neogene volcanic rock zone extending like armed shape in a SE

direction from the Chilean border, near intrusive rocks between the volcanic rock zone, and on its

extensions. The porphyry type copper and copper/gold deposits develop around Farallon Negro, which

is located in one of the volcanic rock zone of relatively advanced erosion, in the neighborhood of Inca

Viejo, which is on the periphery of intrusive rock area between the volcanic rock zones, and to the

west of Tucuman, which is the zone's extension. On the other hand, the alteration zones related to the

epithermal gold and silver deposit tend to exist at a less eroded area, such as those near the Agua

Caliente caldera.

5-2 SEDEX/VMS type deposits

For exploration of SEDEX type lead/zinc deposits, there are only a few clues because deposits

of this type generally have a weak alteration halo differently from other epithermal deposits. In order

to explore a similar type that provides few clues to the exploration, it is desirable that the

characteristics and formation restricting conditions of El Aguilar deposit (including Esperanza deposit)

be correctly determined and that exploration factors drawn from those characteristics and formation

restricting conditions and general exploration factors of world’s major SEDEX-type lead/zinc deposits

be deductively applied to a similar neighboring geological environment. There is a similarity that the

typical SEDEX type lead/zinc deposits in the world are formed in small-scale sedimentary basins with

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anoxic environments in large-scale sedimentary basins such as passive margin (for example, Sangster

and Macintyre, 1983; Lydon, 1995). Sureda (1999) inferred that El Aguilar deposits were formed in

Padrioc Basin of the third order spreading north and south from El Aguilar to Pumahuasi. From the

viewpoint of the regional scale, it is desirable to re-analyze (re-examine) sedimentary basins in terms

of positioning of El Aguilar deposits in the Ordovician system, based on the existing sedimentological

data.

In the analysis carried out during the Phase I, drilling core of El Aguilar deposit was

provided by Compania Minera Aguilar S.A. and an attempt was made to identify the ore horizon

as well as hanging wall and foot wall through the statistical analysis of the chemical composition

of the drilling core’s mudstone. It was found as a result that litho geochemical analysis can

discriminate the differences in the chemical composition between hanging wall and footwall.

The similar ore horizon found through the aforementioned study to identify the hanging wall and

foot wall of the SEDEX type Pb/Zn deposit, stretches in the N-S direction in the environs of El

Aguilar deposits including Rio Grande one, is the most promising area.

Meanwhile La Colorada deposits distributed on the west side of the area in the Ordovician

system were regarded as volcanogenic massive sulfide deposits because the deposits were

accompanied by volcanic rocks in the vicinity, because filling texture with sulfide minerals in the

space of brecciated volcanic rock is observed and because the content of copper is higher than those of

lead and zinc compared with typical SEDEX deposits. Although the control factor of this deposit are

not clear, if it was formed accompanying volcanic activity, it is expected that similar deposits exist in

the whole magmatic arc of the Ordovician on the west side in the north part of the survey area.

The study of the Phase II, as one of the methodology to understand sedimentary basin of

SEDEX, has increased a possibility that a horizon similar to a known SEDEX deposit horizon can be

traced mainly from geochemical characteristics. Based on this study, it was shown that Discriminant

Analysis and principal component analysis can identified litho geochemical feature of SEDEX

and VMS. On the basis of this, it seems possible to identify the distribution of SEDEX or VMS

deposits occurrence or regional sedimentary basin structure, by analyzing geochemical

characteristics of the lower Ordovician System that has not been fully surveyed. Those findings will be

valuable basic information in order to carry forward the SEDEX deposit exploration in the future.

In terms of the ore forming age, the ore horizon of El Aguilar is considered to lower

Ordovician of Lampasar formation with the evidence of mega fossils. However, recent discovery of

conodont and olistostrom made reconsider traditional theory of ore forming age. Therefore

stratigraphic classification using high-resolution microfossils (such as conodonts and radiolarian) of

the Early Paleozoic Era is desired. It will be necessary to collect conodonts directly from mudstone as

well as from calcareous rock because calcareous rock that preserves conodonts in good condition is

outcropped only in small quantities. Furthermore in the area, which has olistostrom, it is also

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necessary for accurate geochemical and paleontrogical study about olistolith and matrix rocks

respectively.

On the other hand, the microfossil study, which is an important factor for identifying the

stratigraphy related to the SEDEX type deposits, was carried out. As a result, Rossodus tenuis

(Miller, 1980) and Drepanoistrodus sp. was identified accompanied with gastropods and

brachiopods in the Santa Rosita limestone, lower of the Santa Victoria group located at the

vicinity of the Santa Victoria town. These fossils indicate the age of the area is Tremadocian in

lower Ordovician system (absolute age approximately 487-489 m.y.).

For recommendation in future exploration, in concrete, it is necessary to apply the litho

geochemical method, in a wider range, to a northern extent including Rio Grande where El Aguilar

deposit is included, sulfide layers were discovered in the ground truth checking of the previous year, in

order to clarify the ore horizon. It is also necessary to identify ore horizon in a similar way from a

north-south extent including Santa Rosa and La Cienaga prospects.

A massive sulfide deposit was discovered in La Colorada deposit through drilling carried out

by Pacific Rim. It is essential to determine the characteristics of this deposit, using the core samples.

As in the case of El Aguilar deposit, a lithological and geochemical study using ore host rock to

extract ore horizon is required. Existence of hydrothermal alteration zone is expected on the hanging

wall and footwall of a volcanic massive sulfide deposit; therefore, its confirmation is needed. The

tectonic setting of La Colorada deposit differs from that of El Aguilar deposit in that the occurrence of

calc-alkali volcanic rock is seen. Little is known about its genesis. In the light of the characteristics of

La Colorada deposit determined up to now, it is desired that the genesis environment be studied with

the help of existing data, from the viewpoint of a volcanic activity setting and formation of a massive

sulfide deposit.

5-3 Porphyry copper and epithermal type deposits

Miocene to Pliocene magmatic arcs developed near the border between Chile and Argentina.

In this area, four volcanic rocks zone extend like an arm shape in the NE-SE direction from this north

south trending main magmatic arc. This report tentatively called them No.1 to No.4 arms for

convenience. Distribution of porphyry type copper and copper/gold deposits and epithermal gold

deposits are restricted in these four arms. Therefore, these four zones can be fundamentally mentioned

as highly potential zones. Particularly, Arm No. 4 has some porphyry type deposits and alteration

zones such as Bajo de la Alumbrera, Bajo de la Agua Tapada, and Filo Colorado. Although

distribution of volcanic rocks is very small near Inca Viejo halfway between Arms No. 2 and No. 3, it

is assumed from the results of airborne magnetics that the potentiality of intrusive rocks exists in the

shallow part of the vicinity. In addition, mineralized zones including Inca Viejo, Diablillos, Condor

Yacu and Centenario are known. Therefore, even though the distribution of volcanic rocks is very

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small, these zones can be regarded as those with high potential for the presence of porphyry type

copper and copper/gold deposits and epithermal gold deposits.

In the SE tending extension of each arm, small-scale intrusive rocks are scattered, which are

not expressed on a small-scale geological map. Porphyry type copper and copper/gold mineralization

are observed inside and outside those rocks. This mineralization corresponds to Agua Rica deposits of

Arm No. 4, El Alisal and El Pago of Arm No.3 and Panco Arias alteration zone of Arm No. 2. These

have been also extracted as alteration zones in the satellite image analysis.

Regarding porphyry type copper and copper/gold deposits, the potential for the existence of

deposits is thought to be high, as mentioned above. Substantially minute investigations have been

already carried out, and room for exploration is considered to exist in the SE tending extension of each

arm.

In three north arms of the four, there are resurgent calderas accompanied by ignimbrite, and

erosion of volcanic body has not advanced so much yet. Therefore, if porphyry type copper and

copper/gold deposits are formed in these volcanic arms, those deposits exist in the deeper level and

cannot be the object of exploration.

It is considered that epithermal gold deposits are at the favorable level of erosion. In particular,

Rachaite and Incachule alteration zones are obviously inside the caldera wall and can be regarded as

products of the volcano-hydrothermal system. A similar presumption can be applied to alteration zone

on the east side of Galan caldera extracted from the satellite image analysis.

In order to clarify the alteration zone, the geochemical and other features of each survey

areas that located in the four zones (arms) which are object of the prospecting of porphyry

copper and epithermal deposits, the Phase II study has carried out field survey and collection of

samples, followed by laboratory work consisting of geochemical analysis, X-ray diffraction, thin

section identification. At this stage, the geochemical analysis has not revealed any significant ore

showing that suggests economic value in four places selected as a survey target area of this fiscal year.

The feature of a typical porphyry copper type alteration zone, however, was clarified in El Pago, and

similar cluster of alteration with NNE-SSE trend near to El Pago, which may be a promising candidate

for exploration, depending on a future survey.

With respect to porphyry copper type deposits and copper/gold deposits, it can be hardly said

that a sufficient survey has been made on the mineral showing in a small-scale Neogene Period stock

in the bed rock located in the volcanic rock arm extension because the mineral showing is far away

from the major volcanic rock distribution. The alteration zone group extending in the NE-SW

direction from the Agua Rica and Filo Colorado prospects 40 km south-southwest of El Pago to El

Pago shows characteristics similar to those of an alteration zone. Further study will be required for

some alteration zones. Also, at an extension to the alteration zone group is situated El Arisar prospect

where a mineral showing dominated by structural factors is very likely to occur. For this reason, it is

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desired that the characteristics, extent, geophysical feature, etc. of the neighboring alteration zones be

determined through a more detailed satellite image analysis, regional geophysical exploration.

With respect to epithermal gold/silver deposits, a lot of ore showings are known in the

volcanic rock extension zone. The image analysis of Phase I and the ground truth checking revealed

that an argillic alteration zone occurs with base metal on the wall of a resurgent caldera such as

Rachite, Incachule, and Pan de Azucar or on the wall of a ring structure. Large-scale alteration zones

in the Rachite and Cerro Galan areas situated on the margin of the caldera were surveyed in this fiscal

year, however no significant mineral showing was found near the ground surface. These large-scale

alteration zones, however, are likely to represent a shallow part of the hydrothermal system; therefore,

the occurrence of an epithermal gold deposit in the depths cannot be ruled out. A technique for

estimating the deeper level of hydrothermal system such as isotope geochemical study is needed for

future exploration.

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PART III: CONCLUSION AND RECOMMENDATION

Chapter 1 Conclusion Analysis of the existing data including preparation of the mineral deposits database, satellite

image analysis of two ASTER data, geochemical analysis of the stream sediments, and field survey

work have been carried out during the current fiscal year, that is the final year of the two-year

survey program under way. SEDEX type Pb/Zn deposits, porphyry copper type Cu and Cu/Au

deposits and epithermal Au deposits have been targeted in the work step referring to the existing

data analysis, because they are deposit types with economic merits.

The number of areas object of field survey totaled eight, with four areas (Aguilar mountain

range, Pumahuasi, Santa Victoria mountain range and La Colorada) surveyed with the object of

prospecting SEDEX/VMS type deposits and other four areas (Pancho Arias, Rachaite, Cerro Galan

and El Pago) with the object of prospecting porphyry Cu and epithermal deposits.

(1) SEDEX type lead/zinc deposits and volcanogenic massive sulfide deposits

In the analysis carried out during the Phase I, drilling core of El Aguilar deposit was

provided by Compania Minera Aguilar S.A. and an attempt was made to identify the ore horizon as

well as hanging wall and foot wall through the statistical analysis of the chemical composition of the

drilling core’s mudstone. Based on this study, it was shown that Discriminant Analysis and principal

component analysis can identified litho geochemical feature of SEDEX and VMS

The following facts related to the mineralization have been found as a result of the

geochemical analysis.

･In Aguilar mountain range area the occurrence of the SEDEX type mineralization (high degree of

correlation with Ag, Sb, Hg, Zn, Cd, Pb, S and Au) has relation not only with Esperanza deposit,

which is a typical of SEDEX type mineralization, but also with other places such as Aguilar deposit,

Oriental prospecting area, Pirita prospecting area, etc.

･Furthermore, in other prospecting area besides Esperanza deposit, such as Aguilar deposit and the

prospecting area surrounding it, other mineralization represented by Colorada deposit (high degree

of correlation with Bi, Au, W, Fe and Ba) overlaps.

･On the other hand, the intervention of a mineralization rather related to La Colorada deposit than

the SEDEX type mineralization is found in Rio Grande prospecting area which is located

approximately 3 km to NE of the Esperanza deposit.

･ Since geochemical factors of the SEDEX type mineralization are found, although not

conspicuously, in Santa Victoria mountain range area, the possibility of occurrence of the SEDEX

type mineralization can not be rejected.

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･As a matter of course, the mineralization represented by La Colorada deposit is markedly

developed in La Colorada area (second principal component). Since a third principal component

suggesting the occurrence of the SEDEX type mineralization was found as a result of a local

principal component analysis covering exclusively La Colorada deposit drilling core, it may safely

be said that the possibility of existence of the SEDEX type mineralization in this area, including

Limeca, still persists.

In the meanwhile, the sulfur isotopic ratio of lead in vein-type lead, zinc and barite deposits

in the area with distribution of the Ordovician system differ from those of El Aguilar deposits.

Therefore, the origin of sulfur of these deposits is considered to be different.

2) Porphyry type copper and copper/gold deposits

Miocene to Pliocene magmatic arcs developed near the border between Chile and Argentina.

In this area, four volcanic rocks zone extend like an arm shape in the NE-SE direction from this

north-south trending main magmatic arc. Distribution of porphyry type copper and copper/gold

deposits and epithermal gold deposits are basically restricted in these four zone. Therefore, these

four zones can be fundamentally mentioned as highly potential zones.

ASTER image analysis had revealed detailed classification of alteration zone, which is

impossible with conservative satellite sensors in this survey. As results, it is found that the outlined

alteration zones are distributed more in four zones where Tertiary volcanic rocks extend NE and SE

and in the extension of these zones. The major tectonic line is also along these NE-SW trending

zones of Tertiary volcanic rocks and in their extension (Fig.II-3-3-2).

In order to clarify the alteration zone, the geochemical and other features of each survey

areas that located in the four volcanic rock zones which are object of the prospecting of porphyry

copper and epithermal deposits, the Phase II study has carried out field survey and laboratory work.

At this stage, the geochemical analysis has not revealed any significant ore showing that suggests

economic value in four areas selected as a survey target area of Phase II. The feature of a typical

porphyry copper type alteration zone, however, was clarified in El Pago, and similar cluster of

alteration with NNE-SSE trend near to El Pago, which may be a promising candidate for exploration,

depending on a future survey.

Furthermore, the most south part of volcanic rock zone (No.4 arm) has some porphyry type

deposits and alteration zones such as Bajo de la Alumbrera, Bajo de la Agua Tapada, and Filo

Colorado which were the target area of Phase I survey, and although distribution of volcanic rocks is

very small near Inca Viejo, it is assumed from the results of airborne magnetics that the potentiality

of intrusive rocks exists in the shallow part of the vicinity. In addition, mineralized zones including

Inca Viejo, Diablillos, Condor Yacu and Centenario are known. Therefore, even though the

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distribution of volcanic rocks is very small, these zones can be regarded as those with high potential

for the presence of porphyry type copper and copper/gold deposits and epithermal gold deposits.

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Chapter 2 Recommendation for future survey

1) SEDEX type lead/zinc deposits and volcanogenic massive sulfide deposits

In order to explore a similar type of El Aguilar deposit, it is desirable that general

exploration factors of SEDEX-type lead/zinc deposits be deductively applied to NOA area.

Specifically, from the viewpoint of the regional scale, it is desirable 1) to re-analyze sedimentary

basins in terms of positioning of El Aguilar deposits in the Ordovician system, based on the existing

sedimentological data, 2) to apply the litho geochemical method to lower Ordovician system for

tracing SEDEX/VMS horizon, 3) to classify detailed stratigraphy using high-resolution microfossils

(such as conodonts and radiolarian) of the Early Paleozoic Era, to collect conodonts directly from

mudstone, and 4)to carry out accurate geochemical and paleontrogical study about olistolith and

matrix rocks respectively. Furthermore it is also necessary to confirm presence of a hydrothermal

alteration in La Colorada area, which is expected on the hanging wall and footwall of a volcanic

massive sulfide deposit

2) Porphyry type copper and copper/gold deposits

With respect to porphyry copper type deposits and copper/gold deposits, it can be hardly

said that a sufficient survey has been made on the mineral showing in this survey area. For future

exploration, it is desirable to carry out more detailed satellite image analysis, regional geophysical

survey in order to clarify the distribution and geophysical feature of alteration zones that are known

in volcanic rock zone and on its extension or are discovered by satellite analysis of this survey

With respect to epithermal gold/silver deposits, especially large-scale argillic alteration zone

located on the wall of a resurgent annular structure which are considered as corridor of hydrothermal

water, a technique for estimating the deeper level of hydrothermal system such as isotope

geochemical study is needed for future exploration.

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- 346 -

Tabl

e A

-1 L

ist o

f sam

ples

and

labo

rato

ry te

st

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

RF0

01D

rill P

4 (2

09.2

5'-2

09.7

5')

Panc

ho A

rias

sedi

men

t ?1

1A

02R

F002

Dril

l P4

(214

.75'

-215

.30'

)Pa

ncho

Aria

spo

rphy

ry1

1A

02R

F003

Dril

l P4

(215

.85'

-216

.15'

)Pa

ncho

Aria

sse

dim

ent ?

11

A02

RF0

04D

rill P

7 (3

70.0

0'-3

70.4

5')

Panc

ho A

rias

porp

hyry

11

A02

RF0

05D

rill P

7 (4

16.1

0'-4

16.6

5')

Panc

ho A

rias

porp

hyry

11

1A

02R

F006

2416

0.6

6551

9.6

3,54

4Pa

ncho

Aria

sPa

ncho

Aria

ssh

ale

11

A02

RF0

0724

160.

665

519.

63,

544

Panc

ho A

rias

Panc

ho A

rias

volc

anoc

last

ic ?

1A

02R

F008

2416

0.6

6551

9.6

3,54

4Pa

ncho

Aria

sPa

ncho

Aria

sse

dim

ent

11

A02

RF0

0924

1628

.565

512.

43,

551

Panc

ho A

rias

Panc

ho A

rias

sedi

men

t ?1

1A

02R

F010

2416

27.5

6550

55.1

3,58

0Pa

ncho

Aria

sPa

ncho

Aria

spo

rphy

ry ?

1A

02R

F011

2416

27.3

6550

54.7

3,56

0Pa

ncho

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sPa

ncho

Aria

sse

dim

ent

11

A02

RF0

1224

1627

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5054

.73,

580

Panc

ho A

rias

Panc

ho A

rias

sedi

men

t1

1A

02R

F013

2415

54.2

6550

53.1

3,50

6Pa

ncho

Aria

sPa

ncho

Aria

spo

rphy

ry1

11

A02

RF0

1424

1543

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5037

.73,

506

Panc

ho A

rias

Panc

ho A

rias

daci

te ?

11

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RF0

1524

1541

.465

5040

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512

Panc

ho A

rias

Panc

ho A

rias

daci

te1

11

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1624

1515

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522.

63,

466

Panc

ho A

rias

Panc

ho A

rias

daci

te1

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02R

F017

2415

15.3

6552

2.6

3,46

6Pa

ncho

Aria

sPa

ncho

Aria

sda

cite

?1

1A

02R

F018

2415

15.3

6552

2.6

3,46

6Pa

ncho

Aria

sPa

ncho

Aria

sda

cite

?1

1A

02R

F019

2422

4.5

6554

48.1

3,70

4Pa

ncho

Aria

sIn

cahu

asi S

urpo

rphy

ry1

11

A02

RF0

2024

223.

165

5447

.63,

706

Panc

ho A

rias

Inca

huas

i Sur

porp

hyry

1A

02R

F021

2422

1.6

6554

47.1

3,70

3Pa

ncho

Aria

sIn

cahu

asi S

urpo

rphy

ry1

A02

RF0

2224

2159

.765

5446

.43,

698

Panc

ho A

rias

Inca

huas

i Sur

porp

hyry

1A

02R

F023

2422

5.8

6554

48.9

3,69

9Pa

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Aria

sIn

cahu

asi S

urpo

rphy

ry1

1A

02R

F024

2422

5.0

6554

46.1

3,70

6Pa

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sIn

cahu

asi S

urpo

rphy

ry1

A02

RF0

2524

225.

465

5444

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709

Panc

ho A

rias

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huas

i Sur

porp

hyry

11

A02

RF0

26Pa

ncho

Aria

sIn

cahu

asi S

urpo

rphy

ry ?

1A

02R

F027

Panc

ho A

rias

Inca

huas

i Sur

porp

hyry

?1

1A

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2421

23.8

6553

25.8

3,48

4Pa

ncho

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sIn

cahu

asi S

urm

onzo

nite

?1

11

A02

RF0

2924

2122

.865

5325

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494

Panc

ho A

rias

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huas

i Sur

mon

zoni

te ?

11

A02

RF0

3024

2121

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5325

.1Pa

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sIn

cahu

asi S

urm

onzo

nite

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A02

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3124

2012

.365

5228

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712

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

11

1A

02R

F032

2420

14.7

6552

29.0

3,71

6Pa

ncho

Aria

sLa

s Bur

ras

porp

hyry

1A

02R

F033

2420

11.5

6552

31.1

3,70

2Pa

ncho

Aria

sLa

s Bur

ras

wea

ther

ed R

ock

1A

02R

F034

2420

12.7

6552

26.7

3,70

7Pa

ncho

Aria

sLa

s Bur

ras

wea

ther

ed P

orph

yry

1A

02R

F035

2420

9.9

6552

27.5

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

1A

02R

F036

2420

9.9

6552

27.5

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

1A

02R

F037

2420

9.9

6552

27.5

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

1A

02R

F038

2420

14.8

6552

18.0

3,71

3Pa

ncho

Aria

sLa

s Bur

ras

porp

hyry

11

A02

RF0

3924

2015

.565

5218

.23,

716

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

RF0

4024

2014

.765

5218

.53,

719

Panc

ho A

rias

Las B

urra

spo

rphy

ry1

11

A02

RF0

4124

1958

.665

5213

.33,

713

Panc

ho A

rias

Las B

urra

sm

onzo

nite

1A

02R

F042

2420

0.2

6552

13.9

3,71

7Pa

ncho

Aria

sLa

s Bur

ras

mon

zoni

te1

1A

02R

F043

2419

56.3

6552

51.0

3,75

4Pa

ncho

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sLa

s Bur

ras

wea

ther

ed p

orph

yry

?1

1A

02R

F044

2428

0.4

6559

28.0

3,37

4Pa

ncho

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sM

ina

Mar

ia In

esco

nglo

mer

ate/

brec

cia

1A

02R

F045

2428

0.4

6559

28.0

3,37

4Pa

ncho

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sM

ina

Mar

ia In

esco

nglo

mer

ate/

brec

cia

1A

02R

F046

2428

0.4

6559

28.0

3,37

4Pa

ncho

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sM

ina

Mar

ia In

essh

ale

11

A02

RF0

5023

751

.365

4116

.63,

938

Agu

ilar

Rio

Gra

nde

grey

sil s

hale

A02

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5122

1711

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3616

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663

Pum

ahua

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e1

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5222

2640

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349.

43,

627

Pum

ahua

si

11

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RF0

5322

548

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930

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219

Sant

a V

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riaM

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1A

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225

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5522

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857

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136

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5622

2317

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425

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900

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ina

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1A

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2223

17.7

654

25.5

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2253

11.7

667

40.9

4,02

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cite

11

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6.7

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58.3

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sand

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mon

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orph

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865

5056

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por

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1

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2415

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6550

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Panc

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Panc

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Rac

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ltere

d (k

aolin

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rock

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acha

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rock

with

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11

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11

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2554

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rM

ina

Espe

ranz

ash

ale

1A

02SX

020

239

12.6

6542

47.9

4,86

2A

guila

rM

ina

Espe

ranz

aph

illiti

c st

ate

1A

02SX

021

2314

12.9

6543

42.6

4,85

7A

guila

rM

ina

Tapa

dasi

licifi

ed fi

ne ss

ands

tone

with

Py

11

A02

SX02

223

1412

.965

4342

.64,

857

Agu

ilar

Min

a Ta

pada

cong

lom

erat

e (s

ub-a

ngul

ar)

1A

02SX

023

2313

14.9

6543

44.0

4,72

9A

guila

rQ

uebr

ada

Polv

orin

esbl

ack

slat

e1

1A

02C

X00

123

1540

.765

4226

.4A

guila

rQ

uebr

ada

Des

penz

alim

oniti

zed,

con

glom

erat

ic ro

ck1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

CX

002

2315

40.7

6542

26.4

Agu

ilar

Que

brad

a D

espe

nza

ham

moc

ky li

mes

tone

with

Py

11

A02

CX

003

237

51.3

6541

16.7

Agu

ilar

Rio

Gra

nde

limon

itize

d or

e zo

ne w

ithha

mm

ock y

lim

esto

ne1

1

A02

CX

004

237

54.1

6541

20.5

Agu

ilar

Rio

Gra

nde

limon

itize

d Py

rich

zon

e1

A02

CX

005

237

54.1

6541

20.5

Agu

ilar

Rio

Gra

nde

blac

k sh

ale

1A

02C

X00

623

749

.065

4132

.1A

guila

rR

io G

rand

esi

liceo

us sa

ndst

one

1A

02C

X00

723

915

.965

4242

.3A

guila

r1

A02

CX

008

239

15.9

6542

42.3

Agu

ilar

1

A02

CX

009

2311

0.6

6542

46.6

Agu

ilar

Rin

con

shal

e? (h

angi

ng w

all o

fm

iner

aliz

ed z

one )

1

A02

CX

010

2311

0.6

6542

46.6

Agu

ilar

Rin

con

Po+Z

b qu

artz

ore

1

A02

CX

011

2311

0.6

6542

46.6

Agu

ilar

Rin

con

shal

e? (f

oot w

all o

f min

eral

ized

zone

)1

A02

CX

012

2311

31.9

6542

43.8

Agu

ilar

El O

rient

albr

ecci

a or

e1

1A

02C

X01

323

119.

165

4224

.0A

guila

rM

ina

Pirit

am

assi

ve q

uartz

ite w

ith M

v.1

A02

CX

014

2311

8.8

6542

23.8

Agu

ilar

Min

a Pi

rita

Py-M

v-Q

z ve

in1

A02

CX

015

2311

8.8

6542

23.8

Agu

ilar

Min

a Pi

rita

quar

tzite

bre

ccia

with

Mn

1A

02C

X01

623

1115

.565

4236

.2A

guila

rM

ina

Pirit

abe

dded

qua

rtzite

1A

02C

X01

723

1056

.465

4235

.3A

guila

rM

ina

Pirit

ash

ale

1A

02C

X01

823

1056

.465

4235

.3A

guila

rM

ina

Pirit

aal

tere

d zo

ne1

A02

CX

019

2310

56.4

6542

35.3

Agu

ilar

Min

a Pi

rita

Py-Q

z1

A02

CX

020

2312

5.0

6542

11.6

Agu

ilar

Min

a A

guila

rgr

anite

11

A02

CX

021

2312

24.3

6542

56.4

Agu

ilar

Min

a A

guila

rqu

artz

ite1

1A

02C

X02

222

1713

.565

3616

.2Pu

mah

uasi

Pum

ahua

sibe

dded

shal

e1

A02

CX

023

2229

32.2

6536

0.7

Pum

ahua

sibe

dded

shal

e an

d sa

ndst

one

1A

02C

X02

422

2243

.565

3644

.2Pu

mah

uasi

Ale

jand

robe

dded

shal

e1

A02

CX

025

2222

7.3

6536

47.1

Pum

ahua

siB

elgi

cabe

dded

shal

e1

A02

CX

026

2218

13.1

6536

12.4

Pum

ahua

siSo

l de

May

ofo

liate

d, b

edde

d sh

ale

1A

02C

X02

722

1727

.965

3617

.3Pu

mah

uasi

Cha

usse

tteha

rd sh

ale

1

A02

CX

028

2217

5.6

6536

31.5

Pum

ahua

siw

ell-b

edde

d si

ne sa

ndst

one

and

shal

e1

A02

CX

029

2210

28.3

655

38.6

Sant

a V

icto

riaV

izca

chan

ibe

dded

qua

rtzite

11

A02

CX

030

2210

28.3

655

38.6

Sant

a V

icto

riaV

izca

chan

ibe

dded

lutit

e in

terc

alat

ing

with

quar

tzite

1

A02

CX

031

226

7.3

656

51.8

Sant

a V

icto

rialig

ht g

rey

hard

qua

rtzite

1A

02C

X03

222

69.

065

71.

9Sa

nta

Vic

toria

fine

sand

ston

e1

A02

CX

033

226

9.0

657

1.9

Sant

a V

icto

riash

ale

1A

02C

X03

422

615

.365

74.

6Sa

nta

Vic

toria

sand

ston

e1

A02

CX

035

227

45.4

657

53.2

Sant

a V

icto

riaqu

artz

ite1

A02

CX

036

226

51.5

658

57.3

Sant

a V

icto

riabe

dded

sand

ston

e w

ith m

ega-

foss

ils1

1

A02

CX

037

226

47.8

659

0.1

Sant

a V

icto

riaw

eath

ered

, mas

sive

silts

tone

1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

CX

038

226

22.9

6510

30.0

Sant

a V

icto

riaw

eath

ered

silts

tone

1A

02C

X03

922

68.

365

1039

.6Sa

nta

Vic

toria

fine

sand

ston

e1

A02

CX

040

226

8.3

6510

39.6

Sant

a V

icto

riasi

ltsto

ne1

A02

CX

041

226

11.3

6510

45.3

Sant

a V

icto

riafin

e sa

ndst

one

1A

02C

X04

222

611

.365

1045

.3Sa

nta

Vic

toria

silts

tone

1A

02C

X04

322

613

.165

112.

2Sa

nta

Vic

toria

silic

ified

fine

sand

ston

e1

A02

CX

044

225

53.6

6511

48.1

Sant

a V

icto

riafin

e sa

ndst

one

11

A02

CX

045

225

53.6

6511

48.1

Sant

a V

icto

riasi

ltsto

ne1

A02

CX

046

226

19.6

6512

3.7

Sant

a V

icto

riash

ale

1A

02C

X04

722

647

.465

1225

.6Sa

nta

Vic

toria

bedd

ed sh

ale

1A

02C

X04

822

93.

465

1514

.8Sa

nta

Vic

toria

phill

itic,

bed

ded

shal

e1

A02

CX

049

229

15.4

6515

20.9

Sant

a V

icto

riabe

dded

shal

e1

1A

02C

X05

022

916

.065

160.

6Sa

nta

Vic

toria

fine

sand

ston

e w

ith M

v.1

1A

02C

X05

122

924

.765

1623

.3Sa

nta

Vic

toria

fine

sand

ston

e w

ith M

v.1

A02

CX

052

229

41.0

6516

57.5

Sant

a V

icto

riasa

ndst

one

1A

02C

X05

322

941

.065

1657

.5Sa

nta

Vic

toria

shal

e1

A02

CX

054

2214

6.8

651

50.5

2,91

0Sa

nta

Vic

toria

shal

e1

A02

CX

055

2214

8.4

651

41.1

2,87

4Sa

nta

Vic

toria

shal

e1

A02

CX

056

2214

14.5

651

24.3

2,83

4Sa

nta

Vic

toria

shal

e1

A02

CX

057

2214

20.9

650

31.0

2,68

7Sa

nta

Vic

toria

shal

e1

A02

CX

058

2214

28.6

650

16.7

2,67

3Sa

nta

Vic

toria

shal

e1

A02

CX

059

2214

45.8

6459

39.5

2,55

6Sa

nta

Vic

toria

shal

e1

A02

CX

060

2214

53.7

6459

36.6

2,57

8Sa

nta

Vic

toria

sand

ston

e1

A02

CX

061

2214

53.7

6459

36.6

2,57

8Sa

nta

Vic

toria

shal

e1

A02

CX

062

2215

8.1

6458

56.0

2,50

3Sa

nta

Vic

toria

shal

e1

A02

CX

063

2215

8.1

6458

56.0

2,50

3Sa

nta

Vic

toria

sand

ston

e1

A02

CX

064

2215

7.7

6458

42.4

2,48

5Sa

nta

Vic

toria

sand

y sh

ale

1A

02C

X06

522

155.

264

5829

.32,

456

Sant

a V

icto

riasa

ndy

shal

e1

A02

CX

066

2215

3.7

6458

23.9

2,44

3Sa

nta

Vic

toria

sand

ston

e1

A02

CX

067

2215

3.7

6458

23.9

2,44

3Sa

nta

Vic

toria

shal

e1

A02

CX

068

2214

51.1

6457

43.5

2,30

2Sa

nta

Vic

toria

limes

tone

1A

02C

X06

922

2318

.065

427

.2Sa

nta

Vic

toria

mic

aceo

us sa

ndst

one

11

A02

CX

070

2223

18.0

654

27.2

Sant

a V

icto

riabl

ack

shal

e1

A02

CX

071

2223

17.5

654

24.4

Sant

a V

icto

riada

cite

dyk

e in

shal

e1

A02

CX

072

2223

17.5

654

24.0

Sant

a V

icto

riabl

ack

shal

e w

ith b

lack

dot

s1

1A

02C

X07

322

2336

.765

415

.8Sa

nta

Vic

toria

bedd

ed sh

ale

1A

02C

X07

422

2347

.765

425

.1Sa

nta

Vic

toria

wea

ther

ed b

edde

d sh

ale

1A

02C

X07

522

2356

.265

438

.3Sa

nta

Vic

toria

bedd

ed fi

ne sa

ndst

one

(fos

sils

?)1

A02

CX

076

2223

51.1

654

48.3

Sant

a V

icto

riabe

dded

silts

tone

(fos

sils

?)1

A02

CX

077

2223

47.9

654

58.9

Sant

a V

icto

riabe

dded

shal

e1

A02

CX

078

2223

47.9

654

58.9

Sant

a V

icto

riam

icac

eous

fine

sand

ston

e1

1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

CX

079

2223

43.1

655

12.3

Sant

a V

icto

riabl

ack

shal

e1

A02

CX

080

2223

52.3

655

28.7

Sant

a V

icto

riaw

eath

ered

bed

ded

shal

e1

A02

CX

081

2224

5.5

655

40.9

Sant

a V

icto

riaw

eath

ered

bed

ded

shal

e1

A02

CX

082

2224

14.6

655

55.5

Sant

a V

icto

riaw

eath

ered

bed

ded

silts

tone

1A

02C

X08

322

2425

.065

615

.2Sa

nta

Vic

toria

bedd

ed m

icac

eous

silts

tone

1A

02C

X08

422

2425

.065

615

.2Sa

nta

Vic

toria

sand

ston

e le

ns1

A02

CX

085

2224

26.4

656

42.1

Sant

a V

icto

riabe

dded

bla

ck sh

ale

1A

02C

X08

622

2433

.265

657

.0Sa

nta

Vic

toria

bedd

ed b

lack

shal

e1

A02

CX

087

2224

23.8

657

20.7

Sant

a V

icto

riaha

rd, m

assi

ve, m

icac

eous

fine

sand

ston

e1

1

A02

CX

088

2224

25.1

657

32.6

Sant

a V

icto

riabe

dded

mic

aceo

us si

ltsto

ne1

A02

CX

089

2224

30.7

657

34.0

Sant

a V

icto

riam

assi

ve m

icac

eous

sand

ston

e1

A02

CX

090

2224

40.2

657

22.4

Sant

a V

icto

riabe

dded

shal

e1

A02

CX

091

2224

34.9

657

34.4

Sant

a V

icto

riam

icac

eous

sand

ston

e1

1A

02C

X09

222

2434

.965

734

.4Sa

nta

Vic

toria

bedd

ed sh

ale

11

A02

CX

093

2225

3.5

6510

13.7

Sant

a V

icto

riasa

ndst

one

1A

02C

X09

422

253.

565

1013

.7Sa

nta

Vic

toria

thin

bed

ded

shal

e1

A02

CX

095

2224

57.7

6510

21.1

Sant

a V

icto

riath

in b

edde

d m

icac

eous

sand

ston

e1

A02

CX

096

2224

57.7

6510

21.1

Sant

a V

icto

riabe

dded

shal

e1

A02

CX

097

2225

4.7

6510

28.2

Sant

a V

icto

riabe

dded

bla

ck sh

ale

with

thin

bedd

ed si

ltsto

ne1

A02

CX

098

2220

44.9

6517

44.8

4,26

3Sa

nta

Vic

toria

shal

e1

A02

CX

099

2220

44.9

6517

44.8

4,26

3Sa

nta

Vic

toria

sand

ston

e1

A02

CX

100

2220

28.6

6517

36.5

4,30

3Sa

nta

Vic

toria

shal

e1

A02

CX

101

2219

46.4

6516

4.9

4,58

3Sa

nta

Vic

toria

shal

e1

A02

CX

102

2219

58.8

6516

6.8

4,61

8Sa

nta

Vic

toria

sand

y sh

ale

1A

02C

X10

322

1947

.665

1549

.54,

657

Sant

a V

icto

riash

ale

1A

02C

X10

422

2255

.665

1358

.74,

248

Sant

a V

icto

riash

ale

1A

02C

X10

522

2243

.165

1355

.74,

328

Sant

a V

icto

riash

ale

1A

02C

X10

622

2348

.265

1356

.44,

383

Sant

a V

icto

riash

ale

1A

02C

X10

722

139.

265

1342

.5Sa

nta

Vic

toria

quar

tzos

e sa

ndst

one

1A

02C

X10

822

138.

965

145.

1Sa

nta

Vic

toria

quar

tzos

e sa

ndst

one

1A

02C

X10

922

1317

.265

1414

.1Sa

nta

Vic

toria

wea

ther

ed b

edde

d sh

ale

1

A02

CX

110

2213

40.3

6514

36.6

Sant

a V

icto

riafo

lded

, sili

cific

ated

bed

ded

shal

ean

d sa

ndst

one

1

A02

CX

111

2214

26.9

6515

5.7

Sant

a V

icto

riath

in b

edde

d bl

ack

shal

e1

A02

CX

112

2214

41.6

6515

31.9

Sant

a V

icto

riath

in b

edde

d sh

ale

1A

02C

X11

322

1423

.265

1532

.3Sa

nta

Vic

toria

bedd

ed m

icac

eous

silts

tone

1A

02C

X11

422

2322

.665

1919

.53,

994

Sant

a V

icto

riash

ale

1A

02C

X11

522

2312

.565

1910

.84,

025

Sant

a V

icto

riasa

nd st

one

1A

02C

X11

622

232.

865

190.

44,

041

Sant

a V

icto

riash

ale

1A

02C

X11

722

230.

765

1848

.84,

052

Sant

a V

icto

riash

ale

1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

CX

118

2223

8.0

6517

21.7

4,42

1Sa

nta

Vic

toria

shal

e1

A02

CX

119

2223

36.1

6517

14.8

4,49

2Sa

nta

Vic

toria

shal

e1

A02

CX

120

2223

56.9

6516

41.9

4,43

1Sa

nta

Vic

toria

shal

e1

A02

CX

121

2223

44.8

6516

25.9

4,33

1Sa

nta

Vic

toria

shal

e1

A02

CX

122

2223

42.7

6516

13.0

4,31

6Sa

nta

Vic

toria

shal

e1

A02

CX

123

2223

53.6

6515

58.7

4,31

2Sa

nta

Vic

toria

shal

e1

A02

CX

124

2223

49.9

6515

33.5

4,25

8Sa

nta

Vic

toria

shal

e1

A02

CX

125

2223

33.3

6515

7.1

4,22

2Sa

nta

Vic

toria

shal

e1

A02

CX

126

2224

0.0

6515

7.5

4,27

0Sa

nta

Vic

toria

shal

e1

A02

CX

127

2224

27.0

6515

3.4

4,23

4Sa

nta

Vic

toria

shal

e1

A02

CX

128

2224

14.4

6514

49.0

4,17

4Sa

nta

Vic

toria

shal

e1

A02

CX

129

2224

17.7

6514

36.5

4,14

4Sa

nta

Vic

toria

shal

e1

A02

CX

130

2214

16.8

6514

20.6

4,13

0Sa

nta

Vic

toria

shal

e1

A02

CX

131

2224

15.3

6513

52.2

4,18

2Sa

nta

Vic

toria

shal

e1

A02

CX

132

2223

57.4

6513

38.7

4,21

3Sa

nta

Vic

toria

shal

e1

A02

CX

133

2339

1.9

6618

2.0

La C

olor

ada

dark

gra

y be

dded

qua

rtzite

(hor

nfel

s)1

A02

CX

134

2339

3.8

6617

57.6

La C

olor

ada

hard

, bed

ded,

gra

ded

silic

ified

shal

e (h

ornf

els)

11

A02

CX

135

2339

2.0

6617

49.7

La C

olor

ada

gree

nish

gre

y, h

ard

horn

fels

1

A02

CX

136

2339

4.4

6617

46.4

La C

olor

ada

wea

k ho

rnfe

lsic

mic

aceo

ussa

ndst

one

1

A02

CX

137

2339

4.1

6617

42.7

La C

olor

ada

wea

ther

ed, g

reen

ish

grey

phi

llitic

sand

ston

e1

A02

CX

138

2339

4.4

6617

33.3

La C

olor

ada

shea

red

limon

itize

d zo

ne1

A02

CX

139

2339

4.4

6617

33.3

La C

olor

ada

gree

nish

gre

y, c

hlor

itize

d zo

ne1

A02

CX

140

2339

5.1

6617

32.8

La C

olor

ada

horn

fels

ic p

hilli

tic sa

ndst

one

with

a ggr

egat

es o

f sec

onda

ry b

iotit

e1

A02

CX

141

2339

4.4

6617

30.2

La C

olor

ada

met

amor

phos

ed sa

ndst

one

11

A02

CX

142

2338

58.9

6617

13.8

La C

olor

ada

horn

fels

ic p

hilli

tic sa

ndst

one

11

A02

CX

143

2340

56.1

6620

41.6

La C

olor

ada

Lim

eca

dark

gre

y be

dded

silts

tone

1A

02C

X14

423

411.

166

2035

.2La

Col

orad

aLi

mec

ada

rk g

rey

bedd

ed si

ltsto

ne to

shal

e1

A02

CX

145

2341

16.2

6620

30.1

La C

olor

ada

Lim

eca

folia

ted

bedd

ed fi

ne sa

ndst

one

tosh

ale

1

A02

CX

146

2341

16.0

6620

29.7

La C

olor

ada

Lim

eca

cubi

c py

rite

diss

emin

ated

laye

rsin

bed

ded

silts

tone

to sh

ale

1

A02

CX

147

2341

18.9

6620

20.4

La C

olor

ada

Lim

eca

bedd

ed fi

ne sa

ndst

one

to sh

ale

1A

02C

X14

823

397.

066

1844

.81

1A

02C

X14

923

398.

366

1837

.81

A02

CX

150

2339

12.4

6618

30.8

11

A02

CX

151

2339

13.4

6618

20.2

11

A02

CX

152

2335

15.4

6614

32.4

3,53

7La

Col

orad

aLa

Col

orad

ash

ale

1

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

CX

153

2335

15.4

6614

32.4

3,53

7La

Col

orad

aLa

Col

orad

asa

nd st

one

1A

02C

X15

423

3529

.666

1425

.53,

580

La C

olor

ada

La C

olor

ada

shis

t1

A02

CX

155

2334

24.9

6613

44.0

3,48

9La

Col

orad

aLa

Col

orad

ash

ist

1A

02C

X15

623

5116

.066

1517

.5La

Col

orad

aLi

mec

afo

liate

d ph

illite

1A

02C

X15

723

5125

.766

1534

.9La

Col

orad

aLi

mec

aco

nglo

mer

ate

1A

02C

X15

823

5126

.766

1540

.2La

Col

orad

aLi

mec

asa

ndst

one

beds

in c

ongl

omer

ate

1A

02C

X15

923

5123

.266

1542

.4La

Col

orad

aLi

mec

aha

rd, b

edde

d qu

artz

ose

sand

ston

e1

A02

CX

160

2351

25.1

6615

58.5

La C

olor

ada

Lim

eca

hard

, sili

ceou

s bed

ded

sand

ston

e1

A02

CX

161

2351

20.0

6616

4.2

La C

olor

ada

Lim

eca

hard

, sili

ceou

s bed

ded

sand

ston

e1

A02

CX

162

2351

18.6

6616

9.9

La C

olor

ada

Lim

eca

dark

gre

y, m

assi

ve sa

ndst

one

1A

02C

X16

323

513.

066

1630

.6La

Col

orad

aLi

mec

aph

illiti

c sh

ale

in sa

ndst

one

1A

02C

X16

423

5148

.266

1759

.7La

Col

orad

aLi

mec

afo

liate

d, d

aciti

c la

va1

1

A02

CX

165

2352

22.7

6618

24.9

La C

olor

ada

Lim

eca

thin

bed

ded

slat

e w

ith q

uartz

vein

lets

1

A02

CX

166

2353

0.1

6618

46.9

La C

olor

ada

Lim

eca

dark

gre

y, th

in b

edde

d sl

ate

11

A02

CX

167

2353

9.3

6618

54.9

La C

olor

ada

Lim

eca

over

turn

ed th

in b

edde

d sl

ate

1A

02C

X16

8La

Col

orad

aLi

mec

a1

A02

CX

169

La C

olor

ada

Lim

eca

1A

02C

X17

023

5026

.066

1550

.53,

559

La C

olor

ada

Lim

eca

sand

ston

e1

A02

CX

171

2350

27.6

6615

49.7

3,55

3La

Col

orad

aLi

mec

asa

ndys

hale

1A

02C

X17

223

5013

.666

1533

.73,

548

La C

olor

ada

Lim

eca

shal

e1

A02

PZ10

1Po

zo-1

(134

.50m

-134

.60m

)La

Col

orad

a1

11

A02

PZ10

2Po

zo-1

(139

.00m

-139

.10m

)La

Col

orad

a1

11

A02

PZ10

3Po

zo-1

(145

.00m

-145

.15m

)La

Col

orad

a1

11

A02

PZ10

4Po

zo-1

(180

.00m

-180

.15m

)La

Col

orad

a1

11

A02

PZ10

5Po

zo-1

(221

.00m

-221

.10m

)La

Col

orad

a1

11

A02

PZ10

6Po

zo-1

(260

.00m

-260

.15m

)La

Col

orad

a1

11

A02

PZ20

1Po

zo-2

(167

.85m

-168

.00m

)La

Col

orad

a1

11

A02

PZ20

2Po

zo-2

(171

.15m

-171

.30m

)La

Col

orad

a1

11

A02

PZ20

3Po

zo-2

(192

.50m

-192

.65m

)La

Col

orad

a1

11

A02

PZ20

4Po

zo-2

(222

.65m

-222

.80m

)La

Col

orad

a1

11

A02

PZ20

5Po

zo-2

(232

.30m

-232

.45m

)La

Col

orad

a1

11

A02

PZ20

6Po

zo-2

(237

.80m

-237

.95m

)La

Col

orad

a1

11

A02

PZ30

1Po

zo-3

( 56

.00m

- 56.

15m

)La

Col

orad

a1

11

A02

PZ30

2Po

zo-3

( 93

.00m

- 93.

15m

)La

Col

orad

a1

11

A02

PZ30

3Po

zo-3

(106

.00m

-106

.10m

)La

Col

orad

a1

11

A02

PZ30

4Po

zo-3

(137

.00m

-137

.20m

)La

Col

orad

a1

11

A02

PZ30

5Po

zo-3

(158

.00m

-158

.15m

)La

Col

orad

a1

11

A02

PZ40

1Po

zo-4

(109

.55m

-109

.70m

)La

Col

orad

a1

11

A02

PZ40

2Po

zo-4

(115

.65m

-115

.80m

)La

Col

orad

a1

11

A02

PZ40

3Po

zo-4

(119

.90m

-120

.05m

)La

Col

orad

a1

11

Sam

ple

No.

Lat(D

)La

t(M)L

at（S)

Lon(

D)L

on(M

)Lon

（S)

Alti

tude

Dis

trict

Loca

lity

Roc

kTS

PTX

RG

CO

AW

RFC

FPFM

A02

PZ40

4Po

zo-4

(133

.20m

-133

.35m

)La

Col

orad

a1

11

A02

PZ40

5Po

zo-4

(136

.85m

-137

.00m

)La

Col

orad

a1

11

A02

PZ40

6Po

zo-4

(144

.75m

-144

.90m

)La

Col

orad

a1

11

A02

PZ50

1Po

zo-5

( 30

.00m

- 30.

15m

)La

Col

orad

a1

11

A02

PZ50

2Po

zo-5

( 33

.00m

- 33.

10m

)La

Col

orad

a1

11

A02

PZ50

3Po

zo-5

( 36

.50m

- 36.

65m

)La

Col

orad

a1

11

A02

PZ50

4Po

zo-5

( 66

.00m

- 66.

20m

)La

Col

orad

a1

11

A02

PZ50

5Po

zo-5

( 67

.00m

- 67.

15m

)La

Col

orad

a1

11

A02

PZ50

6Po

zo-5

( 83

.00m

- 83.

20m

)La

Col

orad

a1

11

A02

PZ50

7Po

zo-5

( 94

.00m

- 94.

15m

)La

Col

orad

a1

11

A02

PZ50

8Po

zo-5

(101

.00m

-101

.15m

)La

Col

orad

a1

11

A02

PZ50

9Po

zo-5

(107

.00m

-107

.10m

)La

Col

orad

a1

11

A02

PZ51

0Po

zo-5

(125

.00m

-125

.15m

)La

Col

orad

a1

11

A02

PZ51

1Po

zo-5

(129

.00m

-129

.10m

)La

Col

orad

a1

11

A02

PZ51

2Po

zo-5

(141

.00m

-141

.15m

)La

Col

orad

a1

11

5618

275

1.5

6555

0.0

El P

ago

123

264

274

41.3

6554

58.5

El P

ago

123

277

274

37.2

6555

4.3

El P

ago

123

281

275

1.8

6554

20.3

El P

ago

125

167

275

13.8

6555

40.9

El P

ago

125

169

275

12.4

6555

23.6

El P

ago

125

173

El P

ago

125

175

275

9.3

6555

21.0

El P

ago

125

208

274

54.0

6555

22.5

El P

ago

125

214

274

53.6

6555

9.0

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ago

126

405

275

4.5

6555

37.0

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126

415

El P

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11

2643

427

450

.265

5541

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Pag

o1

6758

027

511

.865

5526

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o1

167

581

275

13.2

6555

13.5

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11

6758

827

434

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5433

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Qz:

quar

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, Z

b: ,

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w:

TS:

thin

sect

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polis

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chem

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ana

lysi

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g, A

g, A

l, A

s, ba

, Be,

Bi,

Ca,

Cr,

Mg,

Mn,

Mo,

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K2O

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YH

022

daci

tic ro

ckda

cite

○◎

△△

◎m

・a

A02

YH

026

daci

tic ro

ckda

citic

wel

ded

tuff

?○

◎△

?△

?△

◎m

○v

△m

◎m

A02

YH

029

Hb-

daci

te la

vada

citic

tuff

?○

◎△

○・

△m

△m

・a

△a

○v

A02

YH

030

daci

tic p

yroc

last

ics?

alte

red

daci

tic tu

ff ～

　tu

ffbr

ecci

a◎

○△

・・

◎m

○a

○a

◎a

△m

,a

A02

YH

048

gran

odio

rite?

alte

red

met

a ch

ert o

rqu

artz

ite◎

◎a

・a

△a

A02

TK02

1co

nglo

mer

ate

alte

red

brec

cia?

◎・

○・

・

A02

KK

026

sand

y m

udst

one

◎・

・・

△

A02

SX00

6bl

ack

dotty

met

amor

phos

ed fi

nesa

ndst

one-

silts

tone

◎○

◎・

△◎

v△

v

A02

SX01

1lim

esto

nesi

liceo

us li

mes

tone

△・

・?

◎

A02

CX

020

gran

iteho

rnbl

ende

-bio

tite

gran

ite -

gran

odio

rite

△◎

△△

○×

×・

・a

A02

CX

021

quar

tzite

quar

tzite

or m

etam

orph

osed

cher

t◎

△?

・

A02

CX

029

bedd

ed q

uartz

itew

eakl

y re

crys

talli

zed

cher

t or

quar

tz a

reni

te◎

△・

××

A02

CX

044

fine

sand

ston

ear

enac

eous

fine

sand

ston

e◎

○・

・・

v,m

×

A02

CX

069

mic

aceo

us sa

ndst

one

wea

kly

met

amor

phos

edar

enac

eous

fine

sand

ston

e◎

△△

△△

・

A02

CX

078

mic

aceo

us fi

nesa

ndst

one

wea

kly

met

amor

phos

ed fi

nesa

ndst

one

◎△

△?

△・

・

Roc

k na

me

Sam

pe N

o.

mon

zoni

te p

orph

yry

and

sedi

men

ts

mat

rix, a

ltera

tion,

vei

n m

iner

als

Prim

ary

min

eral

s

alte

red

porp

hyrit

ic b

iotit

egr

anite

- bi

otite

mus

covi

teho

rnfe

ls・m

・m

・・

・a

◎m

・a

・a

Fiel

d ob

serv

atio

nM

icro

scop

ic o

bser

vatio

nqz

plkf

btm

uill

hoop

xcp

xol

gasp

izi

apop

qac

tan

tC

cba

brqz

chl

seri

epsm

ecka

olim

alu

togl

preh

act

cck-

fpl

opq

btcp

xsp

hgl

aph

lch

alx

Roc

k na

me

Sam

pe N

o.m

atrix

, alte

ratio

n, v

ein

min

eral

sPr

imar

y m

iner

als

A02

CX

087

mas

sive

, mic

aceo

usfin

e sa

ndst

one

wea

kly

met

amor

phos

ed fi

nequ

artz

sand

ston

e or

qua

tzite

?◎

△・

・○

・a

×

A02

CX

164

folia

ted,

dac

itic

lava

met

amor

phos

ed d

acito

c tu

ff○

◎△

○◎

・・

×a?

×a?

A02

CX

166

(san

d st

one)

◎△

△・

A02

CX

166

(silt

ston

e)○

△△

△

A02

PZ10

3al

tere

d gr

een

tuff

○・

?・

?・

○?

・v

・v,

a○

v,・

a

A02

PZ10

4bi

otite

-mus

covi

te sc

hist

?△

△◎

◎・

?△

・?

・a?

・a?

・a?

A02

PZ10

5bi

otite

-mus

covi

te-q

uartz

-pl

agio

clas

e sc

hist

○○

◎◎

・△

・?

・

A02

PZ10

6ga

rnet

-bio

tite-

mus

covi

teho

rnfe

lsic

qua

rtzite

◎・

△△

・・

・

A02

PZ20

1m

iner

aliz

ed b

iotit

e m

usco

vite

schi

st○

・◎

△・

◎v

○v

・v

△v

○v

△v

A02

PZ20

2bi

otite

mus

covi

te si

liceo

usho

rnfls

◎・

○△

・◎

v

A02

PZ20

5m

etan

orph

osed

bas

ic tu

ff?

△◎

○・

○v

△・

v・v

A02

PZ20

6bi

otite

-mus

coite

-chl

orite

schi

st○

◎△

・・

?・

◎v

・v

・v

△v

・v

・v

A02

PZ40

1(h

ornf

ers)

◎△

○・

A02

PZ40

1(d

iorit

e)△

○◎

△?

△?

△

A02

PZ40

2(tu

ff)

○○

△・

・

A02

PZ40

2(m

udst

one)

◎◎

・・

△

A02

PZ40

5al

tere

d ga

bbro

○○

○△

・a

・a

・a

A02

PZ40

6m

eta

mic

ro g

abbr

o?○

◎△

△・

a・

a・

a・

a・

a

A02

PZ50

1m

iner

aliz

ed m

eta

basi

te?(

baci

tic tu

ff o

rigin

?)○

・△

△△

・◎

v◎

△v

A02

PZ50

2m

eta

basi

te◎

△△

△◎

△v,

m

A02

PZ50

5m

etam

orph

osed

tuff

aceo

ussa

ndst

one

◎△

△○

△・

v,◎

m・

v,m

△v,

m△

v,m

A02

PZ50

6B

iotit

e-qu

artz

-X sc

hist

◎○

?◎

・△

◎v

A02

PZ50

7B

iotit

e-m

usco

vite

-chl

orite

schi

st○

△?

◎○

・△

A02

PZ50

8m

etam

orph

osed

qua

rtzite

with

bas

ic tu

ff?

◎△

△・

・△

○・

a△

v・a

A02

PZ51

1bi

otite

-mus

covi

te-q

uartz

schi

st◎

○△

・・

v・

・a

・

A02

PZ51

2bi

otite

-mus

covi

te sc

hist

◎△

◎△

・v

Lege

nd; ◎

abu

ndan

t; ○

com

mon

; △ m

inor

; ・ ra

re, ×

ver

y ra

re

Prim

ary

min

eral

q

z:qu

artz

, pl:p

lagi

ocla

se, k

f:k-f

elds

par,

bt:b

iotit

e, m

u:m

usco

vite

, ill

:illit

e, h

o:ho

rnbl

ende

, opx

:orth

o py

roxe

ne, c

px:c

lino

pyro

xene

, ol:o

livin

e, g

a:ga

rnet

, spi

:spi

nel,

zi:z

ircon

, ap:

apat

ite, o

pq:o

paqu

e m

iner

als (

mai

nly

iron

oxid

e), a

ct:a

ctin

olite

, an

t:ant

hoph

yllit

e, c

c:ca

lcite

, ba:

barit

e, b

r: br

ecci

a

Seco

ndar

y m

iner

al

c

hl:c

hlor

ite, s

eri:s

eric

ite, e

p:ep

idot

e, sm

ec:s

mec

tite,

kao

:kao

linite

, lim

:lim

onite

, alu

:alu

nite

, to:

tour

mal

ine,

gl:g

lauc

onite

, pre

h:pr

ehni

te,sp

h:sp

hene

, gla

:gla

ss, p

hl:p

hlog

opite

, cha

l:cha

lsed

onic

qua

rtz, x

:unk

now

n

a:a

ltera

tion,

v:v

ein,

m:m

atrix

dark

gre

y, th

in b

edde

dsl

ate

min

eral

ized

met

amor

phos

edba

sic

tuff

? an

d m

udst

one

met

amor

phos

ed d

iorit

e? -

silic

eous

hor

nfel

s con

tact

med

ium

sand

ston

e - s

iltst

one

boun

dary

・・

v

◎v

・○

v

(2) O

re sa

mpl

es

Not

e

Fiel

d ob

serv

atio

nM

icro

scop

ic o

bser

vatio

npy

pyr

asp

mac

spl

cpga

bis

cote

tpo

na-b

iel

mt

ruil

golp

ag(o

ther

s)

A02

RF0

04po

rphy

ryPy

rire

diss

emin

ated

ore

○・

△△

△△

△△

A02

RF0

31po

rphy

ryLi

mon

ite o

re△

・△

○○

A02

RF0

40po

rphy

ryB

recc

iate

d lim

onite

ore

・・

△◎

△

A02

RF0

46sh

ale

Ban

ded

ore

・△

A02

RF0

51or

eC

last

ic c

oars

e-gr

aine

dga

lena

ore

△◎

・◎

・△

△・

A02

RF0

53or

eC

last

ic o

re・

・○

△△

○△

○

A02

RF0

57or

eQ

uartz

-Gal

ena-

Cha

lcop

yrite

band

ed o

re○

○◎

◎△

・△

A02

RF0

68or

eLi

mon

ite n

etw

ork

in q

uartz

○○

A02

RF0

69or

eQ

uartz

△・

△△

A02

RF0

71sa

ndst

one

Flex

ural

rock

△△

A02

RF1

04or

eLi

mon

ite o

re△

△◎

A02

RF1

05or

e (g

rab)

Pyrir

e di

ssem

inat

ed o

re◎

△△

A02

RF1

06H

W ro

ckPy

rire

diss

emin

ated

ore

○・

・△

A02

PZ10

1B

ande

d py

rrho

tite-

spal

erite

ore

◎△

◎△

○・

・△

A02

PZ10

2M

assi

ve p

yrrh

otite

-ric

h or

e◎

△・

?○

△△

・?

・△

△

A02

PZ20

3M

assi

ve p

yrrh

otite

ore

◎△

△△

△△

△△

△

A02

PZ20

4Py

rrho

tite-

rich

ore

◎○

○○

○

A02

PZ30

1N

etw

ork

pyrr

hotit

e-ch

alco

pyrit

e or

e◎

○△

○・

△

A02

PZ30

2M

assi

ve P

yrrh

otite

-ric

h or

e◎

△・

△・

△

A02

PZ30

3N

etw

ork

pyrr

hotit

e or

e◎

△・

△△

△

A02

PZ30

4M

assi

ve p

yrrh

otite

-ric

h or

e◎

・△

○・

・△

A02

PZ30

5Py

rrho

tite-

rich

ore

◎○

○△

△・

△

A02

PZ40

3M

assi

ve p

yrrh

otite

-ric

h or

e◎

△△

○・

・・

△

A02

PZ40

4M

assi

ve p

yrrh

otite

ore

◎△

△△

△△

A02

PZ50

3Py

rrho

tite-

rich

ore

◎△

○△

・・

△△

△

A02

PZ50

4Py

rrho

tite-

rich

ore

・◎

○○

△△

・・

・・

△

A02

PZ50

9Py

rrho

tite-

rich

ore

◎・

?△

○△

・?

・・

△△

△

A02

PZ51

0Py

rrho

tite

ore

◎△

△△

△・

?△

△

Lege

nd; ◎

abu

ndan

t; ○

com

mon

; △ m

inor

; ・ ra

re

Ore

min

eral

py:p

yrite

, py

r:pyr

rhot

ite, a

sp:a

rsen

opyr

ite, m

ac:m

acki

naw

aite

, spl

:spa

lera

ite, c

p:ch

alco

pyrit

e, g

a:ga

lena

, bis

:bis

mut

hini

te, c

o:co

velli

te, t

et:te

trahe

drite

, po:

poly

basi

te, n

a-bi

:nat

ive

bith

mut

h, e

l:ele

ctru

m, m

t:mag

netit

e, ru

:rutil

e, il

:ilm

enite

,go

:goe

thite

, lp:

lepi

docr

ocite

, ag:

angl

esite

Ore

min

eral

sR

ock

nam

eSa

mpe

No.

Tabl

e A

-3 R

esul

t of t

he la

bora

tory

test

(X-r

ay d

iffra

ctio

n)

Sam

ple

No.

qzop

lK

fpl

smch

lch

l/sm

sese

/sm

epka

opy

rja

alca

lan

kgy

ppy

hmam

pto

uran

dC

omm

ent

Ethy

lene

gly

col t

reat

men

tA

02R

F001

◎○

○・

◎・

A02

RF0

03◎

○・

・◎

A02

RF0

05◎

○○

・・

◎A

02R

F006

◎・

・◎

A02

RF0

08◎

・○

A02

RF0

09◎

△△

A02

RF0

11◎

・・

◎A

02R

F012

◎・

△・

A02

RF0

13◎

○△

・・

A02

RF0

14◎

・・

A02

RF0

15◎

○・

○A

02R

F016

◎○

・A

02R

F017

◎・

○A

02R

F018

◎A

02R

F019

◎△

○・

・・

A02

RF0

23◎

△○

・△

A02

RF0

25◎

・○

△・

A02

RF0

27◎

△△

・・

A02

RF0

28・

・○

amp:

mag

nesi

ohor

nble

nde

A02

RF0

29○

○・

・・

○am

p:ho

rnbl

ende

A02

RF0

31◎

◎・

△A

02R

F035

◎△

△・

○・

A02

RF0

36◎

○△

・○

A02

RF0

37◎

△・

・○

A02

RF0

39◎

・・

・◎

・A

02R

F040

◎・

○A

02R

F043

◎◎

・・

・△

amp:

horn

blen

deA

02R

F052

◎・

△A

02R

F058

○△

・・

△△

A02

RF0

59・

△・

△○

A02

RF0

61○

○・

・A

02R

F062

○△

△・

・am

p?:h

ornb

lend

eA

02R

F063

○・

○・

・A

02R

F064

○○

○○

・A

02R

F065

△○

・・

・sm

, se,

chl

A02

RF0

66◎

・○

△○

・sm

, se,

chl

A02

RF0

67◎

△・

・A

02R

F103

◎○

・◎

A02

RF1

05◎

◎・

・A

02R

F106

◎○

・△

△A

02R

F107

◎○

◎A

02R

F108

◎○

△◎

ser:b

iotit

e?A

02Y

H00

6◎

○・

△

Sam

ple

No.

qzop

lK

fpl

smch

lch

l/sm

sese

/sm

epka

opy

rja

alca

lan

kgy

ppy

hmam

pto

uran

dC

omm

ent

Ethy

lene

gly

col t

reat

men

tA

02Y

H00

7◎

○△

○A

02Y

H01

0・

・◎

A02

YH

011

◎○

△◎

A02

YH

013

◎△

・○

A02

YH

014

・○

A02

YH

015

◎・

A02

YH

017

◎・

○・

sm:s

er/s

m?

sm, s

eA

02Y

H01

8◎

△○

sm:s

er/s

m?

sm, s

eA

02Y

H01

9◎

・・

△sm

:ser

/sm

?sm

, se,

chl

A02

YH

020

◎・

・△

・sm

:ser

/sm

?sm

, se,

chl

A02

YH

021

◎△

・A

02Y

H02

3◎

△・

・A

02Y

H02

4◎

・○

・・

A02

YH

025

◎・

△・

・・

A02

YH

027

◎○

・・

A02

YH

028

◎○

・・

A02

YH

031

○○

○・

・A

02Y

H03

2○

◎・

・A

02Y

H03

3○

○・

・△

A02

YH

034

○○

・・

△A

02Y

H03

5◎

○・

・△

A02

YH

036

◎△

・・

・・

A02

YH

048

◎・

◎A

02Y

H05

0◎

○・

A02

TK00

1◎

◎・

A02

TK00

2◎

○・

A02

TK00

4◎

◎A

02TK

005

◎○

・・

◎A

02TK

006

◎◎

△○

A02

TK00

7○

△◎

A02

TK00

8◎

△◎

A02

TK00

9○

・○

○A

02TK

010

◎◎

・△

A02

TK01

7○

・・

△○

?d=3

.22,

3.9

4, 4

.05

A02

TK01

8◎

△・

Kf?

A02

TK01

9◎

△・

・K

f?A

02TK

022

・・

◎sm

, chl

A02

TK02

3◎

・・

・se

/sm

, chl

A02

TK02

4◎

・・

△A

02TK

025

△○

△A

02TK

026

◎・

○A

02TK

027

○○

・A

02TK

028

◎△

・A

02TK

029

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%%

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Mo

Nb

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Ni

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ZnZr

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ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

ppm

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ppm

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Dist

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Age

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nit

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JUY

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a C

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a C

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ex

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coite

Cho

coite

22ﾟ2

0'30

"65

ﾟ46'

43"

Cu

Vei

nO

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icia

nD

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c po

rphy

ries,

sand

ston

esan

d sh

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Esc

aya)

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ian

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plex

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yrite

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ston

es a

nd sh

ales

Aco

ite F

orm

atio

n10

JUJU

YZ-

02C

erro

Col

orad

oPu

mah

uasi

22ﾟ2

0'01

"65

ﾟ37'

33"

Pb-Z

nSi

mpl

e ve

ins

limon

ite, g

alen

a, b

arite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n11

JUJU

YZ-

02C

haus

sette

Pum

ahua

si22

ﾟ17'

18"

65ﾟ3

8'00

"Pb

-Zn

Sim

ple

vein

sga

lena

, ank

erite

, bar

ite, h

emat

ite,

ceru

ssite

, ang

lesi

te, s

phal

erite

, pyr

iteO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

12JU

JUY

Z-02

Con

stan

cia-

La C

asua

lidad

Pum

ahua

si22

ﾟ15'

65ﾟ4

0'Fe

Sim

ple

vein

s13

JUJU

YZ-

02C

orra

lito

Bla

nco

La Q

uiac

a22

ﾟ12'

01"

65ﾟ3

6'25

"C

uSi

mpl

e ve

ins

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n14

JUJU

YZ-

02G

ener

al L

eman

Pum

ahua

si22

ﾟ22'

01"

65ﾟ3

7'07

"Pb

-Zn

Sim

ple

vein

s in

faul

tsga

lena

, sph

aler

ite, c

erus

site

, ang

lesi

te,

barit

e, li

mon

iteO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

15JU

JUY

Z-02

Isab

elPu

mah

uasi

22ﾟ1

5'65

ﾟ36'

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

limon

ite, b

arite

, gal

ena,

qua

rtzO

rdov

icia

nSa

ndst

ones

, sh

ales

Aco

ite F

orm

atio

n16

JUJU

YZ-

02La

Bél

gica

(Sur

Bél

gica

,A

ram

ayo)

, Ale

jand

roPu

mah

uasi

22ﾟ2

3'55

"65

ﾟ37'

11"

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

gale

na, s

phal

erite

, pyr

ite, c

halc

opyr

ite,

limon

ite, c

erus

site

, ang

lesi

te, b

arite

,an

kerit

e, q

uartz

, lim

onite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

17JU

JUY

Z-02

La B

lanq

uita

, La

Sang

uina

riaPu

mah

uasi

22ﾟ1

3'46

"65

ﾟ32'

37"

PbSi

mpl

e ve

ins i

n fa

ults

Ord

ovic

ian

Sand

ston

es,

shal

esA

coite

For

mat

ion

18JU

JUY

Z-02

La P

erla

Pum

ahua

si22

ﾟ25'

01"

65ﾟ3

5'32

"Pb

-Zn

Sim

ple

vein

s in

faul

tsO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

19JU

JUY

Z-02

La P

ulpe

raPu

mah

uasi

22ﾟ2

2'32

"65

ﾟ35'

56"

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

gale

na, s

phal

erite

, pyr

ite, c

halc

opyr

ite,

limon

ite, c

erus

site

, ang

lesi

te, b

arite

,an

kerit

e, q

uartz

, lim

onite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

20JU

JUY

Z-02

La Q

uiaq

ueña

La Q

uiac

a22

ﾟ06'

33"

65ﾟ3

5'08

"Pb

Sim

ple

vein

sO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

21JU

JUY

Z-02

Lem

anPu

mah

uasi

22ﾟ2

1'65

ﾟ36'

PbSi

mpl

e ve

ins i

n fa

ults

22JU

JUY

Z-02

Luis

itoPu

mah

uasi

22ﾟ2

3'17

"65

ﾟ35'

24"

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

gale

na, l

imon

ite, a

nker

ite, q

uartz

, Cu-

oxid

e, b

arite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

23JU

JUY

Z-02

Olg

aPu

mah

uasi

22ﾟ1

3'01

"65

ﾟ32'

41"

Cu-

Ag

Epith

erm

al p

olym

etal

licve

ins

born

ite, g

alen

a, b

arite

, ank

erite

Cu:

12.5

%, A

g:27

5g/t

Ord

ovic

ian

Sand

ston

es,

shal

esA

coite

For

mat

ion

24JU

JUY

Z-02

Pum

ahua

siPu

mah

uasi

22ﾟ1

6'34

"65

ﾟ38'

13"

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

barit

e, g

alen

a, c

halc

opyr

ite, m

alac

hite

,sp

hale

rite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

25JU

JUY

Z-02

Ros

a de

Oro

(Can

grej

illos

)Pu

mah

uasi

22ﾟ2

5'32

"65

ﾟ35'

57"

Pb-Z

nSi

mpl

e ve

ins i

n fa

ults

barit

e, g

alen

aO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

26JU

JUY

Z-02

San

Mar

cial

Pum

ahua

si22

ﾟ24'

00"

65ﾟ3

5'33

"Pb

-Zn

Sim

ple

vein

s in

faul

tsO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

27JU

JUY

Z-02

Sol d

e M

ayo

Pum

ahua

si22

ﾟ18'

09"

65ﾟ3

6'43

"Pb

-Zn

Sim

ple

vein

s in

faul

tsba

rite,

gal

ena,

spha

lerit

e, p

yrite

,ch

alco

pyrit

e, c

erus

site

, ank

erite

,O

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

28JU

JUY

Z-02

Vic

toria

Pum

ahua

si22

ﾟ16'

57"

65ﾟ3

8'57

"C

uEp

ither

mal

pol

ymet

allic

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n29

JUJU

YZ-

02W

ashi

ngto

nPu

mah

uasi

22ﾟ2

5'31

"65

ﾟ35'

24"

Pb-Z

nSi

mpl

e ve

ins

barit

e, g

alen

a, F

e-ox

ides

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n30

JUJU

YZ-

03R

incó

n de

Caj

asR

incó

n de

Caj

as22

ﾟ17'

26"

65ﾟ1

7'18

"Pb

-Bar

iteV

eins

in fa

ults

gale

na, b

arite

, qua

rtzO

rdov

icia

nSa

ndst

ones

and

shal

esSa

nta

Ros

ita F

orm

atio

n31

JUJU

YZ-

03R

omin

a El

isa

Cón

dor

22ﾟ2

7'31

"65

ﾟ19'

49"

Pb-B

arite

Vei

ns in

faul

tsba

rite,

gal

ena

Ord

ovic

ian

Sand

ston

es,

shal

esSa

nta

Ros

ita F

orm

atio

n32

JUJU

YZ-

03Sa

n A

nton

ioA

bra

de C

óndo

r22

ﾟ26'

35"

65ﾟ1

6'36

"C

uV

eins

in fa

ults

Cu-

oxid

e, q

uartz

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Sant

a R

osita

For

mat

ion

33SA

LTA

Z-03

Aria

sTr

es L

agun

as22

ﾟ05'

18"

65ﾟ0

8'45

"A

u-C

uM

esot

herm

al A

u ve

ins

gold

, ars

enop

yrite

, pyr

ite, h

emat

ite, C

u-ox

ide,

qua

rtzO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

34SA

LTA

Z-03

Ata

hual

paLi

zoite

22ﾟ1

8'42

"65

ﾟ10'

32"

Cu

Vei

npy

rite,

cha

lcop

yrite

, mal

achi

te, l

mon

iteC

ambr

ian

Qua

rtzite

and

qua

rtzos

eM

esón

Gro

up35

SALT

AZ-

03H

uasi

, Vie

jito

Cer

ro T

oroy

oc22

ﾟ36'

18"

65ﾟ1

6'15

"Pb

-Cu

Vei

ns in

faul

tsga

lena

, cha

lcop

yrite

, pyr

ite, l

imon

ite,

quar

tzO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

36SA

LTA

Z-03

Jaim

e A

lber

toTu

c Tu

ca, A

bra

de C

ónd

or22

ﾟ23'

30"

65ﾟ1

5'09

"B

arite

Vei

ns in

faul

tsba

rite,

gal

ena

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

37SA

LTA

Z-03

La C

odic

iada

Sant

a C

ruz,

Sie

rras

de

Sant

a V

icto

ria22

ﾟ08'

25"

65ﾟ0

3'48

"Pb

-Bar

iteV

eins

in fa

ults

gale

na, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

38SA

LTA

Z-03

La N

ique

lina

Abr

a de

Cón

dor,

Tuc

Tuca

22ﾟ2

2'36

"65

ﾟ13'

42"

Ni-P

b-Zn

-(Co-

As-

Cu-

U)

Mes

othe

rmal

, Vei

ns in

faul

tsch

alco

cite

, cha

lcop

yrite

, bor

nite

,te

trahe

drite

, pyr

ite, n

icco

lite,

gal

ena,

spha

lerit

e, p

itchb

lend

e

Ni:0

.45-

1.65

%, P

b:2.

5-30

%, Z

n:1.

5-21

%,

Co:

0.47

-1.7

6%(s

elec

ted

sam

ples

),A

s:26

.6-3

1.46

%(s

elec

ted

sam

ples

)

Cam

bria

n, O

rdov

icia

nQ

uartz

ite, s

hale

and

sand

ston

eC

hahu

alm

ayoc

For

mat

ion,

San

taR

osita

For

mat

ion

39SA

LTA

Z-03

Lagu

na B

lanc

aC

óndo

r22

ﾟ29'

01"

65ﾟ1

7'16

"B

arite

-Pb

Vei

ns in

faul

tsba

rite,

gal

ena

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

40SA

LTA

Z-03

Rom

ina

Elis

aSi

erra

s de

Sant

a V

icto

ria22

ﾟ27'

65ﾟ2

0'B

arite

-Pb

Vei

ns in

faul

tsO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n41

SALT

AZ-

03R

osar

ioTr

es L

agun

as22

ﾟ05'

23"

65ﾟ1

3'13

"Pb

-Bar

iteV

eins

in fa

ults

gale

na, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

42SA

LTA

Z-03

San

Felip

eC

óndo

r22

ﾟ27'

24"

65ﾟ1

7'02

"B

arite

-Pb

Vei

ns in

faul

tsba

rite,

gal

ena

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

43SA

LTA

Z-03

Sant

a R

osa

Tuc

Tuca

, Abr

a de

Có

22ﾟ2

4'22

"65

ﾟ15'

09"

Bar

iteV

eins

in fa

ults

barit

e, g

alen

aB

aSO

4:82.

11-8

4.48

%O

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n44

SALT

AZ-

03To

royo

c, H

uaira

Cer

ro T

oroy

oc22

ﾟ37'

27"

65ﾟ1

6'55

"Pb

-Cu

Vei

ns in

faul

tsga

lena

, cha

lcop

yrite

, pyr

ite, l

imon

ite,

quar

tzO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

45SA

LTA

Z-03

Viz

cach

ani N

orte

Tres

Lag

unas

, Sie

rras

de

Sant

a V

icto

ria22

ﾟ08'

35"

65ﾟ0

8'54

"Pb

-Zn-

Cu

Vei

ns in

faul

tsga

lena

, sph

aler

ite, p

yrite

, cha

lcop

yrite

,ce

russ

ite, c

hrys

ocol

la, m

alac

hite

, qua

rtzO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

1 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t46

SALT

AZ-

03V

olcá

n B

lanc

oA

bra

de F

undi

cion

es22

ﾟ23'

44"

65ﾟ1

0'36

"B

arite

-Pb

Vei

ns in

faul

tsba

rite,

gal

ena,

Cu-

oxid

e, li

mon

ite,

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

47SA

LTA

Z-04

Ant

igal

Ant

igal

, Sie

rras

de

Sant

aV

icto

ria22

ﾟ10'

20"

64ﾟ5

4'53

"Fe

Stra

tifor

m, o

oliti

c,tu

rbid

itic

hem

atite

, thu

ringi

te, b

iotit

e, si

lice

hidr

atad

a, m

usco

vite

, lim

omite

Silu

rian

Silts

tone

, Gre

ywac

keLi

peón

For

mat

ion

48SA

LTA

Z-04

Cer

ros B

ravo

sPu

cará

, Sie

rras

de

Sant

aV

icto

ria22

ﾟ12'

25"

64ﾟ4

8'14

"A

uA

lluvi

al g

old

gold

Plei

stoc

ene

- Hol

ocen

eA

lluvi

al p

lain

dep

osits

49SA

LTA

Z-04

Mec

oyita

Mec

oyita

, Sie

rras

de

Sant

a V

icto

ria22

ﾟ07'

58"

64ﾟ5

3'10

"Fe

Stra

tifor

m, o

oliti

che

mat

ite, t

hurin

gite

, bio

tite,

silic

ehi

drat

ada,

mus

covi

te, l

imom

iteSi

luria

nSi

ltsto

ne, G

reyw

acke

Lipe

ón F

orm

atio

n

50SA

LTA

Z-04

Pozo

Bra

voTr

es L

agun

as, S

ierr

as d

eSa

nta

Vic

toria

22ﾟ0

9'04

"65

ﾟ07'

36"

Au

Allu

vial

gol

dgo

ld

51SA

LTA

Z-04

Puca

ráPu

cará

, Sie

rras

de

Sant

aV

icto

ria22

ﾟ10'

25"

64ﾟ5

7'52

"A

uA

lluvi

al g

old

gold

Plei

stoc

ene

- Hol

ocen

eA

lluvi

al p

lain

dep

osits

52SA

LTA

Z-04

Pueb

lo d

e M

inas

Tres

Lag

unas

, Sie

rras

de

Sant

a V

icto

ria22

ﾟ05'

53"

65ﾟ0

7'39

"A

uA

lluvi

al g

old

gold

Au:

<2.4

g/m

3 (m

ine

sect

or)

Plei

stoc

ene

- Hol

ocen

eA

lluvi

al-c

ollu

vial

dep

osits

53SA

LTA

Z-04

Sant

a C

ruz

Sant

a C

ruz,

San

taV

icto

ria22

ﾟ09'

22"

65ﾟ0

0'48

"A

uA

lluvi

al g

old

gold

Allu

vial

pla

in d

epos

its

54SA

LTA

Z-04

Sant

a R

osita

Puca

rá, S

ierr

as d

e Sa

nta

Vic

toria

22ﾟ1

1'51

"64

ﾟ52'

01"

Au

Allu

vial

gol

dgo

ldA

u:1g

/m3 (a

vera

ge in

Puca

rá)

Plei

stoc

ene

- Hol

ocen

eA

lluvi

al p

lain

dep

osits

55SA

LTA

Z-04

Sant

a V

icto

riaR

ío S

anta

Cru

z22

ﾟ08'

65ﾟ0

0'A

uA

lluvi

al g

old

gold

56SA

LTA

Z-04

Viz

cach

ani N

orte

Tres

Lag

unas

, Sie

rras

de

Sant

a V

icto

ria22

ﾟ08'

12"

65ﾟ0

7'42

"A

uA

lluvi

al g

old

gold

57SA

LTA

Z-04

Yav

ihua

ico

Sant

a C

ruz,

Sie

rras

de

Sant

a V

icto

ria22

ﾟ07'

53"

65ﾟ0

1'26

"A

uA

lluvi

al g

old

gold

Plei

stoc

ene

- Hol

ocen

eA

lluvi

al p

lain

dep

osits

58SA

LTA

Z-05

Abr

a C

olor

ada

Cer

ro F

undi

cion

es22

ﾟ27'

46"

65ﾟ0

8'31

"Pb

-Bar

iteV

eins

in fa

ults

barit

e, g

alen

a, q

uartz

Prec

ambr

ian

Schi

sts a

nd sl

ates

Punc

ovis

cana

For

mat

ion

59SA

LTA

Z-05

Aco

ite, H

orni

llos

Lizo

ite22

ﾟ18'

20"

65ﾟ0

6'28

"Pb

-Cu-

Bar

iteV

eins

in fa

ults

gale

na, b

arite

, qua

rtzC

ambr

ian

Qua

rtzite

Cam

pana

rio F

orm

atio

n60

SALT

AZ-

05A

leja

ndra

Pasc

aya,

Cer

ro B

lanc

o22

ﾟ24'

32"

64ﾟ5

7'49

"Pb

-Bar

iteV

eins

in fa

ults

gale

na, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

61SA

LTA

Z-05

Bea

triz,

Soc

orro

Mol

ino,

Río

Naz

aren

o22

ﾟ34'

35"

65ﾟ0

7'01

"Pb

-Cu-

Bar

iteV

eins

in fa

ults

gale

na, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

62SA

LTA

Z-05

Cam

pam

ento

Punc

ovis

cana

, Sie

rras

de

Sant

a V

icto

ria22

ﾟ19'

11"

65ﾟ0

2'12

"Fe

Vei

n-fo

rmsp

ecul

arite

, hem

atite

, mag

netit

eO

rdov

icia

nSa

nta

Ros

ita F

orm

atio

n

63SA

LTA

Z-05

Chu

rqui

pam

paLi

zoite

22ﾟ1

8'44

"65

ﾟ06'

55"

Pb-C

u-U

-Th-

Bar

iteM

esot

herm

al, T

h-R

EEve

ins

gale

na, m

alac

hite

, tho

rite,

thur

ingi

te,

barit

e, q

uartz

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

64SA

LTA

Z-05

Dan

aTr

igoh

uaic

o, S

ierr

as d

eSa

nta

Vic

toria

22ﾟ2

1'03

"64

ﾟ59'

55"

Bar

iteba

rite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

65SA

LTA

Z-05

Don

Alb

erto

, Puc

a A

ypa,

San

Cay

etan

o, M

aría

Mar

ques

aSi

erra

s de

Sant

a V

icto

ria22

ﾟ16'

13"

64ﾟ5

8'41

"B

arite

-Pb

barit

e, g

alen

a, q

uartz

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

66SA

LTA

Z-05

Don

José

, Jul

iaPo

scay

a, N

azar

eno

22ﾟ2

5'30

"65

ﾟ02'

30"

Bar

ite-P

bba

rite,

gal

ena,

Fe-

oxid

es, q

uartz

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

67SA

LTA

Z-05

El N

azar

eno

Naz

aren

o22

ﾟ30'

45"

65ﾟ0

5'35

"Pb

-Bar

itega

lena

, bar

iteO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n68

SALT

AZ-

05El

Qui

rusi

llal

Naz

aren

o22

ﾟ29'

10"

65ﾟ0

6'39

"Pb

-Zn-

U-C

u-N

i-B

arite

barit

e, g

alen

a, sp

hale

rite,

ura

nini

te,

pitc

hble

nde

Cam

bria

nQ

uartz

ites,

quar

tzos

e sa

ndst

ones

Mes

ón G

roup

69SA

LTA

Z-05

Eliz

abet

hSi

erra

s de

Sant

a V

icto

ria22

ﾟ14'

05"

64ﾟ5

7'16

"Pb

-Cu-

Bar

itega

lena

, bar

ite, m

alac

hite

, azu

rite,

qua

rtz,

limon

iteO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

70SA

LTA

Z-05

Encr

ucija

daSi

erra

s de

Sant

a V

icto

ria22

ﾟ14'

39"

65ﾟ0

0'35

"Pb

Vei

ns in

faul

tsga

lena

, qua

rtz, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

71SA

LTA

Z-05

Her

mán

Trig

ohua

ico,

Sie

rras

de

Sant

a V

icto

ria22

ﾟ20'

25"

65ﾟ0

2'59

"B

arite

-Pb

Vei

ns in

faul

tsga

lena

, bar

iteO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

72SA

LTA

Z-05

La C

iéna

gaPa

ltorc

o, S

ierr

as d

e Sa

nta

Vic

toria

22ﾟ2

2'30

"65

ﾟ04'

49"

Pb-C

u- B

arite

Vei

ns in

faul

tsga

lena

, bar

ite, q

uartz

, cha

lcop

yrite

,he

mat

iteO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

73SA

LTA

Z-05

Lopi

ara

Posc

aya,

Naz

aren

o22

ﾟ25'

38"

65ﾟ0

5'43

"B

arite

-Pb

Vei

ns in

faul

tsba

rite,

gal

ena,

Fe-

oxid

es, q

uartz

BaS

O4:5

9.92

-95.

36%

,Pb

:32.

49%

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

74SA

LTA

Z-05

Mar

ía C

ristín

aN

azar

eno

22ﾟ3

1'39

"65

ﾟ04'

56"

Pb-C

uV

eins

in fa

ults

gale

na, C

u-ox

ide,

bar

ite, q

uartz

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

75SA

LTA

Z-05

Mar

ía G

abrie

laA

coite

, Sie

rras

de

Sant

aV

icto

ria22

ﾟ18'

08"

65ﾟ0

2'13

"Fe

Vei

n-fo

rmsp

ecul

arite

, hem

attit

e, m

agne

tite

Ord

ovic

ian

Lutit

e, S

ands

tone

Sant

a R

osita

For

mat

ion

76SA

LTA

Z-05

Mar

ía Ju

liaSi

erra

s de

Sant

a V

icto

ria22

ﾟ13'

25"

65ﾟ0

2'52

"Pb

-Bar

iteV

eins

in fa

ults

gale

na, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

77SA

LTA

Z-05

Misq

uero

Posc

aya,

Naz

aren

o22

ﾟ25'

43"

65ﾟ0

6'42

"Pb

-Cu-

Bar

iteV

eins

in fa

ults

barit

e, g

alen

a, C

u-ox

ide,

radi

oact

ive

anom

alie

s, lim

onite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

78SA

LTA

Z-05

Mon

o A

bra

Trig

ohua

ico,

Sie

rras

de

Sant

a V

icto

ria22

ﾟ22'

26"

65ﾟ0

1'07

"B

arite

Vei

ns in

faul

tsba

rite,

gal

ena,

qua

rtz, o

xide

s of C

u-Fe

BaS

O4:8

6.10

%11

8,00

0 t

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

79SA

LTA

Z-05

Oue

brad

a C

olor

ada

Cer

ro F

undi

cion

es22

ﾟ29'

18"

65ﾟ1

2'11

"B

arite

-Pb

Vei

ns in

faul

tsba

rite,

gal

ena,

qua

rtzPr

ecam

bria

nSc

hist

s and

slat

esPu

ncov

isca

na F

orm

atio

n80

SALT

AZ-

05Pa

pach

acra

Sier

ras d

e Sa

nta

Vic

toria

22ﾟ1

6'07

"64

ﾟ55'

10"

PbV

eins

in fa

ults

gale

naO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n81

SALT

AZ-

05Pa

rmen

se, V

izca

chan

iA

bra

de F

undi

cion

es22

ﾟ24'

24"

65ﾟ0

7'14

"Pb

-Bar

iteV

eins

in fa

ults

barit

e, q

uartz

Pb:1

7%, C

u:1.

8-4.

9%,

Ag:

115-

360g

/tO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

82SA

LTA

Z-05

Posc

aya

Posc

aya,

Naz

aren

o22

ﾟ26'

46"

65ﾟ0

3'01

"Pb

-Bar

iteV

eins

in fa

ults

barit

e, g

alen

a, q

uartz

, Fe-

Mn-

oxid

esba

rite:

53,0

00t

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

83SA

LTA

Z-05

Río

Bla

nco

Aco

ite, S

ierr

as d

e Sa

nta

Vic

toria

22ﾟ1

5'43

"65

ﾟ00'

55"

Pb-C

u-U

-Th

Vei

ns in

faul

tsga

lena

, mal

achi

te, a

zurit

e, b

arite

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

84SA

LTA

Z-05

San

José

San

Pedr

o, R

ío N

azar

eno

22ﾟ3

4'38

"65

ﾟ02'

29"

Pb-A

gV

eins

in fa

ults

gale

naPr

ecam

bria

nSc

hist

s, sl

ates

, gre

ywac

kes

Punc

ovis

cana

For

mat

ion

85SA

LTA

Z-05

San

Sant

iago

, Agu

a B

lanq

uita

Puca

rá, S

ierr

as d

e Sa

nta

Vic

toria

22ﾟ1

1'44

"65

ﾟ01'

12"

PbV

eins

in fa

ults

gale

naPr

ecam

bria

nSc

hist

s, sl

ates

Punc

ovis

cana

For

mat

ion

86SA

LTA

Z-05

Sepu

ltura

Sier

ras d

e Sa

nta

Vic

toria

22ﾟ1

2'45

"64

ﾟ57'

40"

FeSt

ratif

orm

, ool

itic

hem

atite

, thu

ringi

te, b

iotit

e, si

lice

hidr

atad

a, m

usco

vite

, lim

onite

Silu

rian

Silts

tone

, Gre

ywac

keLi

peón

For

mat

ion

87SA

LTA

Z-05

Virg

en d

el V

alle

San

Pedr

o, R

io N

azar

eno

22ﾟ3

8'28

"65

ﾟ06'

51"

FeV

ein-

form

spec

ular

ite, h

emat

ite, l

imon

itePr

ecam

bria

nSc

hist

, Sla

te, P

hylli

tePu

ncov

isca

na F

orm

atio

n88

SALT

AZ-

06B

aritú

Bar

itú22

ﾟ32'

25"

64ﾟ4

5'02

"Fe

Stra

tifor

m, o

oliti

c,tu

rbid

itehe

mat

ite, t

hurin

gite

, bio

tite,

silic

ehi

drat

ada,

mus

covi

te, l

imon

iteSi

luria

nSi

ltsto

ne, G

reyw

acke

(gre

y an

dgr

eeni

sh)

Lipe

ón F

orm

atio

n

89SA

LTA

Z-06

Can

dela

riaB

aritú

22ﾟ4

0'44

"64

ﾟ46'

38"

FeSt

ratif

orm

, ool

itic,

turb

idite

hem

atite

, thu

ringi

te, b

iotit

e, si

lice

hidr

atad

a, m

usco

vite

, lim

onite

Silu

rian

Silts

tone

, Gre

ywac

ke (g

rey

and

gree

nish

)Li

peón

For

mat

ion

90SA

LTA

Z-06

Cue

sta

de M

inas

Los T

oldo

s22

ﾟ27'

58"

64ﾟ4

4'50

"Fe

Stra

tifor

m, o

oliti

c,tu

rbid

itehe

mat

ite, t

hurin

gite

, bio

tite,

silic

ehi

drat

ada,

mus

covi

te, l

imon

iteSi

luria

nSi

ltsto

ne, G

reyw

acke

(gre

y an

dgr

eeni

sh)

Lipe

ón F

orm

atio

n

91SA

LTA

Z-06

Poro

ngal

Bar

itú22

ﾟ37'

04"

64ﾟ4

5'30

"Fe

Stra

tifor

m, o

oliti

c,tu

rbid

itehe

mat

ite, t

hurin

gite

, bio

tite,

silic

ehi

drat

ada,

mus

covi

te, l

imon

iteSi

luria

nSi

ltsto

ne, G

reyw

acke

(gre

y an

dgr

eeni

sh)

Lipe

ón F

orm

atio

n

2 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t92

SALT

AZ-

06Q

uebr

ada

La M

isió

nLo

s Tol

dos

22ﾟ1

3'47

"64

ﾟ42'

17"

Phos

phat

esSt

ratif

orm

, bio

coen

ose

Shel

ls o

f Lin

gula

Bla

chio

podo

conc

entra

tions

P 2O

5:7%

Ord

ovic

ian

Qua

rtzite

, San

dsto

ne, L

utite

Labr

ado

Form

atio

n, C

entin

ela

Form

atio

n93

SALT

AZ-

06R

ío A

lisal

Isla

de

Cañ

as22

ﾟ42'

44"

64ﾟ4

8'51

"Ph

osph

ates

Stra

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:6

-7%

Ord

ovic

ian

Qua

rtzite

, San

dsto

ne, L

utite

Labr

ado

Form

atio

n, C

entin

ela

Form

atio

n94

SALT

AZ-

06R

ío A

still

ero

Isla

de

Cañ

as22

ﾟ54'

47"

64ﾟ5

0'02

"Ph

osph

ates

Stra

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:2

.8-7

%O

rdov

icia

nQ

uartz

ite, S

ands

tone

, Lut

iteLa

brad

o Fo

rmat

ion,

Cen

tinel

aFo

rmat

ion

95SA

LTA

Z-06

Río

Lip

eoR

ío L

ipeo

, Lip

eo22

ﾟ24'

36"

64ﾟ4

5'03

"Ph

osph

ates

Stra

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:1

%O

rdov

icia

nQ

uartz

ite, S

ands

tone

, Lut

iteLa

brad

o Fo

rmat

ion,

Cen

tinel

aFo

rmat

ion

96SA

LTA

Z-06

Rio

Por

onga

lB

aritú

22ﾟ3

4'50

"64

ﾟ45'

48"

Phos

phat

esSt

ratif

orm

, bio

coen

ose

Shel

ls o

f Lin

gula

Bla

chio

podo

conc

entra

tions

P 2O

5:<8.

7%O

rdov

icia

nQ

uartz

ite, S

ands

tone

, Lut

iteLa

brad

o Fo

rmat

ion,

Cen

tinel

aFo

rmat

ion

97SA

LTA

Z-06

Río

San

José

Los T

oldo

s22

ﾟ22'

57"

64ﾟ4

4'47

"Ph

osph

ates

Stra

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsO

rdov

icia

nQ

uartz

ite, S

ands

tone

, Lut

iteLa

brad

o Fo

rmat

ion,

Cen

tinel

aFo

rmat

ion

98JU

JUY

Z-07

Espa

ña, P

otos

í, V

eta

Jesu

itaC

ochi

noca

22º 3

7'66

º 03'

Pb-A

g-Zn

Epith

erm

al, p

olym

etal

lic,

subv

olca

nic

spha

lerit

e, m

arca

site

, flu

orite

, pyr

ite,

sede

rite,

gal

ena,

alu

nite

, qua

rtz, c

alci

tePb

:6.4

%,

Ag:

490g

/t87

,000

tM

iddl

e M

ioce

neD

acite

s and

and

esite

sLa

guna

de

Pozu

elos

Vol

cani

cC

ompl

ex99

JUJU

YZ-

07Pa

n de

Azú

car-

Poto

sí-E

spañ

aC

ochi

noca

22ﾟ3

7'54

"66

ﾟ02'

55"

Pb-A

g-Zn

-Sb

Epith

erm

al, p

olym

etal

lic,

subv

olca

nic

spha

lerit

e, m

arca

site

, flu

orite

, pyr

ite,

sede

rite,

gal

ena,

alu

nite

, qua

rtz, c

alci

tePb

:4.6

2%, Z

n:6.

58%

,A

g:0.

224k

g/t,

Sb:0

.88%

59,0

00t

Mid

dle

Mio

cene

Dac

ites a

nd a

ndes

ites

Lagu

na d

e Po

zuel

os V

olca

nic

Com

plex

100

JUJU

YZ-

08G

raci

ela

Sier

ra d

e Q

uich

agua

22ﾟ4

7'66

ﾟ05'

Pb-Z

n-(C

u-A

g)V

eins

Ord

ovic

ian

Lutit

e, S

ands

tone

Aco

ite F

orm

atio

n10

1JU

JUY

Z-08

La E

sper

anza

Sier

ra d

e Q

uich

agua

22ﾟ4

5'66

ﾟ07'

Sb-Z

n-A

uV

ein

Sb:2

0%24

0,00

0t (i

nfer

red)

Ord

ovic

ian

Lutit

e, S

ands

tone

Aco

ite F

orm

atio

n10

2JU

JUY

Z-08

Tupi

zaEs

caya

, Sie

rra

deC

ochi

noca

22ﾟ4

5'01

"66

ﾟ05'

42"

Pb-A

g-Zn

-Cu

Epith

erm

al p

olym

etal

licO

rdov

icia

nSa

ndst

ones

, sha

les,

rhyo

daci

ticpo

rphy

ries

Coc

hino

ca-E

scay

a C

ompl

ex

103

JUJU

YZ-

09D

once

llas,

San

José

Don

cella

s22

ﾟ53'

66ﾟ0

1'Sb

-Au-

FeEp

ither

mal

stib

nite

, qua

rtzN

eoge

ne te

rtiar

yD

acite

s and

bio

titic

and

esite

sD

once

llas F

orm

atio

n10

4JU

JUY

Z-09

Rac

haite

(inc

luya

la m

ina

Cho

caya

)R

acha

ite22

º 52'

30"

66ﾟ0

7'52

.6"

Pb-Z

n-A

g-M

nEp

ither

mal

to m

esot

herm

aldi

ssem

inat

ed p

olym

etal

lic.

Pb, Z

n an

d A

g V

eins

.

pyrr

hotit

e, p

yrite

,cha

lcop

yrite

, gal

ena,

arge

ntite

, sph

aler

ite, A

g-m

iner

als

Pb:0

.7%

, Zn:

1.5%

,A

g:20

0ppm

5Mt (

tota

l)U

pper

Mio

cene

Dac

ites,

ande

site

s, tu

ffs,

brec

cias

Don

cella

s For

mat

ion,

Alto

Lag

una

Form

atio

n

105

JUJU

YZ-

09Y

anca

naco

taD

once

llas

22ﾟ5

1'66

ﾟ02'

Sb-F

e-M

nV

ein

Mio

cene

Lava

, And

esite

, Bre

ccia

106

JUJU

YZ-

10B

arco

scon

teC

ochi

noca

22ﾟ4

1'15

"65

ﾟ53'

11"

Cu

Vei

nO

rdov

icia

nD

aciti

c po

rphy

ries,

sand

ston

esan

d sh

ales

Coc

hino

ca-E

scay

a C

ompl

ex

107

JUJU

YZ-

10C

erro

Chu

tana

ySi

erra

de

Coc

hino

ca22

ﾟ46'

65ﾟ5

4'Pb

-Bar

iteV

eins

barit

e, g

alen

aO

rdov

icia

nSa

ndst

ones

, sha

les,

rhyo

daci

ticpo

rphy

ries

Coc

hino

ca-E

scay

a C

ompl

ex

108

JUJU

YZ-

10M

onte

cris

toC

ordó

n Es

caya

Coc

hino

ca22

ﾟ38'

47"

65ﾟ5

1'14

"Pb

Vei

nsba

rite,

gal

ena

Ord

ovic

ian

Sand

ston

es, s

hale

s, rh

yoda

citic

porp

hyrie

sC

ochi

noca

-Esc

aya

Com

plex

109

JUJU

YZ-

10Pu

nta

del Q

uivi

lC

ochi

noca

22ﾟ4

7'24

"65

ﾟ54'

48"

Bar

iteV

eins

barit

eO

rdov

icia

nR

hyod

aciti

c po

rphy

ries,

sand

stone

s and

shal

esC

ochi

noca

-Esc

aya

Com

plex

110

JUJU

YZ-

10Sa

nta

Tere

sita

de

Jesú

sC

ochi

noca

22ﾟ4

2'33

"65

ﾟ53'

36"

Bar

iteV

eins

barit

e, g

alen

aO

rdov

icia

nR

hyod

aciti

c po

rphy

ries,

sand

stone

s and

shal

esC

ochi

noca

-Esc

aya

Com

plex

111

JUJU

YZ-

11A

lba

Rum

icru

z22

ﾟ50'

0865

ﾟ34'

04"

Cu

Vei

nsba

rite,

cha

lcop

yrite

, mal

achi

teO

rdov

icia

nSa

ndst

ones

and

shal

esSa

nta

Vic

toria

Gro

up11

2JU

JUY

Z-11

Cha

rito,

Arb

olito

Abr

a Pa

mpa

22ﾟ4

3'43

"65

ﾟ33'

12"

Pb-B

arite

Sim

ple

vein

sba

rite,

gal

ena

Ord

ovic

ian

Sand

ston

es, s

iltst

ones

, sha

les

Sant

a V

icto

ria G

roup

113

JUJU

YZ-

11La

Pur

ísim

a, E

l Bre

chón

, San

toD

omin

go, A

ltos R

umic

ruz

Rum

icru

z22

ﾟ49'

65ﾟ3

1'C

u-Pb

-Zn-

Ag-

Bar

iteEp

ither

mal

pol

ymet

allic

chal

coci

te, c

halc

opyr

ite, b

arite

,te

trahe

drite

, gal

ena,

spha

lerit

e, p

yrite

,ni

ccol

ite

Cu:

6%, P

b:4%

,Zn

:1.1

%, A

g:50

g/t

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Sant

a V

icto

ria G

roup

114

JUJU

YZ-

11El

Cón

dor,

Ang

elita

, Pun

ta d

eA

gua

Abr

a Pa

mpa

22ﾟ5

0'65

ﾟ30'

Mn

Fiss

ure

and

join

t fill

ing,

Impr

egna

tion

psilo

mel

ane,

pyr

olus

iteC

reta

ceou

sSa

ndst

one

Pirg

ua S

ubgr

oup

115

JUJU

YZ-

11La

Pur

ísim

a, T

rebo

l, Si

lvia

Rum

icru

z22

ﾟ49'

33.8

"65

ﾟ32'

09.8

"C

u-Pb

-Bar

iteEp

ither

mal

, pol

ymet

allic

chal

coci

te, c

halc

opyr

ite, b

arite

,te

trahe

drite

, gal

ena,

spha

lerit

e, p

yrite

,ni

ccol

ite

7,30

0t (i

nfer

red)

,31

,200

t (in

dica

ted)

Ord

ovic

ian

Sand

ston

es, s

hale

s and

silts

tone

sSa

nta

Vic

toria

Gro

up

116

JUJU

YZ-

11M

abel

, Mel

liza,

Cón

dor H

uasi

Abr

a Pa

mpa

22ﾟ4

2'58

"65

ﾟ33'

41"

Pb-B

arite

Sim

ple

vein

sba

rite,

gal

ena

Ord

ovic

ian

Sand

ston

es, s

iltst

ones

, sha

les

Sant

a V

icto

ria G

roup

117

JUJU

YZ-

11N

orm

a Pa

trici

aA

bra

Pam

pa22

ﾟ37'

40"

65ﾟ3

6'45

"C

uV

ein

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n11

8JU

JUY

Z-11

Rum

icru

z, D

oña

Emm

a, A

rgen

tina

ll, D

on S

antia

go, D

oña

Emm

a, E

lR

osar

io, N

ona

Con

stan

za, N

ona

Mar

ía a

nd o

ther

s

Rum

icru

z22

ﾟ49'

32.3

"65

ﾟ32'

08.6

"C

u-Pb

-Ba-

Ni-C

o-Zn

-Ag-

Au

Epith

erm

al, p

olym

etal

licch

alco

cite

, cha

lcop

yrite

, bar

ite,

tetra

hedr

ite, g

alen

a, sp

hale

rite,

pyr

ite,

nicc

olite

Cu:

5.5%

234,

700t

(tot

al)

Ord

ovic

ian

Sand

ston

es, s

hale

s and

silts

tone

sSa

nta

Vic

toria

Gro

up

119

JUJU

YZ-

127

de F

ebre

ro, 5

de

Mar

zo, 2

de

Nov

iem

bre

Ocl

oyas

22ﾟ5

3'65

ﾟ12'

Pb-Z

nV

eins

in fa

ults

gale

na, s

phal

erite

, qua

rtzO

rdov

icia

nSh

ales

, Qua

rtziti

c sa

ndst

ones

Sant

a V

icto

ria G

roup

120

JUJU

YZ-

12C

asill

as, B

rujo

Cas

illas

22ﾟ4

5'15

"65

ﾟ21'

48"

Bar

iteV

eins

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a V

icto

ria G

roup

121

JUJU

YZ-

12C

olpa

yoc

Tres

Cru

ces

22ﾟ4

9'50

"65

ﾟ21'

44"

PbV

eins

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a V

icto

ria G

roup

122

JUJU

YZ-

12El

Mor

ro, L

a D

escu

brid

ora

Ocl

oyas

22ﾟ5

3'65

ﾟ16'

Pb-C

u-Zn

Vei

nsPb

:10%

, Ag:

174g

/tO

rdov

icia

nSa

ndst

ones

, cal

care

ous s

iltst

ones

,oo

litic

lim

esto

nes

Bal

buen

a Su

bgro

up

123

JUJU

YZ-

12In

ti C

anch

aC

asill

as22

ﾟ43'

49"

65ﾟ2

2'02

"B

arite

Sim

ple

vein

sO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Vic

toria

Gro

up12

4JU

JUY

Z-12

Peña

Bla

nca

Cas

illas

22ﾟ4

6'57

"65

ﾟ24'

53"

Cu

Vei

nO

rdov

icia

nSa

ndst

ones

and

shal

esSa

nta

Vic

toria

Gro

up12

5JU

JUY

Z-12

Virg

en d

e Lu

ján

Ocl

oyas

22ﾟ5

3'65

ﾟ15'

Pb-C

u-Zn

-Ag

Vei

nsga

lena

, qua

rtzPb

:10%

1,00

0 t

Cre

tace

ous

Sand

ston

es, c

alca

reou

s silt

ston

es,

limes

tone

sB

albu

ena

Subg

roup

126

SALT

AZ-

12Es

pera

nza,

Est

her

(ex.

Cha

cabu

co)I

ruya

22ﾟ4

3'30

"65

ﾟ13'

03"

Cu-

Pb-Z

n- A

g-U

-C

oEp

ither

mal

, pol

ymet

allic

chal

copy

rite,

pyr

ite, b

orni

te,

tetra

hedr

ite, s

phal

erite

, gal

ena,

pitc

hble

nde

Cu:

19-2

3%, P

b:10

-21

%, Z

n:9.

75-1

0.3%

,U

2O3:0

.14-

0.37

%

Prec

ambr

ian,

Cam

bria

nSc

hist

s, sl

ates

. Qua

rtzite

sPu

ncov

isca

na F

orm

atio

n, M

esón

Gro

up

127

SALT

AZ-

12Ju

anita

Iruya

22ﾟ4

3'26

"65

ﾟ14'

11"

Cu

Vei

nsPr

ecam

bria

nSc

hist

s, qu

artz

ites

Punc

ovis

cana

For

mat

ion

128

SALT

AZ-

12La

Sol

edad

Iruya

22ﾟ4

1'55

"65

ﾟ14'

32"

Fe-C

uV

ein

Cam

bria

nQ

uartz

iteM

esón

Gro

up12

9SA

LTA

Z-12

Las T

olde

rías

Cor

anzu

li, Ir

uya

22ﾟ5

2'18

"65

ﾟ11'

44"

Bar

ite-P

bV

eins

in fa

ults

barit

e, g

alen

a, F

e-ox

ide,

qua

rtzB

aSO

4:41.

28-9

8.66

%,

Pb:2

7.96

%Pr

ecam

bria

nSc

hist

s, sl

ates

Punc

ovis

cana

For

mat

ion

130

SALT

AZ-

12Sa

n Is

idro

Iruya

22ﾟ4

4'15

"65

ﾟ13'

45"

Pb-C

uV

eins

chal

copy

rite,

pyr

itePr

ecam

bria

nSc

hist

s, sl

ates

, qua

rtzite

sPu

ncov

isca

na F

orm

atio

n13

1SA

LTA

Z-12

Vie

jito,

Tor

oyoc

Iruya

22ﾟ5

2'65

ﾟ11'

Bar

ite-P

bV

ein

Prec

ambr

ian

Schi

st, S

late

Punc

ovis

cana

For

mat

ion

132

JUJU

YZ-

13A

bdon

Cas

tro T

olay

Cer

ros d

e Pe

lom

oy23

ﾟ15'

66ﾟ0

9'C

uV

eins

mal

achi

teO

rdov

icia

nSa

ndst

one,

Lut

iteC

hiqu

eros

For

mat

ion

133

JUJU

YZ-

13A

lto d

e M

inas

Cas

tro T

olay、

Río

de

Bar

ranc

as23

ﾟ13'

66ﾟ0

7'C

uV

eins

mal

achi

teO

rdov

icia

nQ

uartz

iteC

hiqu

eros

For

mat

ion

134

JUJU

YZ-

13El

Pel

adar

Cer

ros d

e Pe

lom

oy23

ﾟ06'

66ﾟ0

4'Sn

-Pb

Vei

nsO

rdov

icia

nR

hyol

itic

dike

Aco

ite F

orm

atio

n13

5JU

JUY

Z-14

9 de

Julio

Sier

ra d

e Tu

saqu

illas

23ﾟ2

2'66

ﾟ01'

WG

reis

enw

olfr

amite

, spe

cula

rite,

mus

covi

te,

quar

tzW

O3:

2.5%

(gr

ade

ofth

e w

hole

dis

trict

)15

,000

t (in

ferr

ed)

Jura

ssic

- C

reta

ceou

sG

rano

dior

iteTu

saqu

illas

Bat

holit

h

3 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t13

6JU

JUY

Z-14

Abr

a de

Tus

aqui

llas

Sier

ra d

e Tu

saqu

illas

23ﾟ1

2'66

ﾟ02'

WG

reis

enw

olfr

amite

, spe

cula

rite,

mus

covi

te,

Jura

ssic

- C

reta

ceou

sG

rano

dior

iteTu

saqu

illas

Bat

holit

h13

7JU

JUY

Z-14

Espe

ranz

a, E

ntre

Río

s, C

umbr

eB

lanc

aSi

erra

de

Tusa

quill

as23

ﾟ15'

66ﾟ0

0'W

Gre

isen

wol

fram

ite, s

pecu

larit

e, m

usco

vite

,qu

artz

Jura

ssic

- C

reta

ceou

sG

rano

dior

iteTu

saqu

illas

Bat

holit

h

138

JUJU

YZ-

14Li

quin

aste

Sier

ra d

e Tu

saqu

illas

23ﾟ2

2'65

ﾟ59'

WG

reis

enw

olfr

amite

, spe

cula

rite,

mus

covi

te,

Jura

ssic

- C

reta

ceou

sG

rano

dior

iteTu

saqu

illas

Bat

holit

h13

9JU

JUY

Z-14

Tusa

quill

as l

y ll

Sier

ra d

e Tu

saqu

illas

23ﾟ1

1'65

ﾟ59'

WG

reis

enw

olfr

amite

, spe

cula

rite,

mus

covi

te,

Jura

ssic

- C

reta

ceou

sG

rano

dior

iteTu

saqu

illas

Bat

holit

h14

0JU

JUY

Z-15

Bla

nca

Flor

Sier

ra d

e A

guila

r23

ﾟ20'

65ﾟ4

3'B

arite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

141

JUJU

YZ-

15C

arah

uasi

, Pis

cuno

, Cur

zniy

ocA

gua

Chi

ca (C

erro

Col

orad

o)22

ﾟ53'

55"

65ﾟ4

3'00

"Pb

Sim

ple

vein

sga

lena

, qua

rtzO

rdov

icia

nSa

ndst

ones

, silt

ston

es, s

hale

sA

coite

For

mat

ion

142

JUJU

YZ-

15El

Agu

ilar

Sier

ra d

e A

guila

r23

ﾟ12'

21.6

"65

ﾟ43'

1.4"

Pb-A

g-Zn

SED

EXZn

:8.4

%, P

b:5.

5%,

Ag:

90-1

20g/

t5M

t (m

easu

red)

, 3.

3Mt

(min

able

)O

rdov

icia

n - C

reta

ceou

sQ

uartz

ites,

Gra

nite

sLa

mpa

zar F

orm

atio

n, A

guila

rFo

rmat

ion,

Pad

rioc

Form

atio

n,A

guila

r Gra

nite

143

JUJU

YZ-

15Es

pera

nza

Sier

ra d

e A

guila

r23

ﾟ09'

27.1

"65

ﾟ42'

25.3

"Pb

-Ag-

ZnSE

DEX

Zn:1

2.7%

, Pb:

4.9%

,A

g:10

0g/t

75,0

00t

144

JUJU

YZ-

15La

Can

dela

riaA

gua

Chi

ca (C

erro

Col

orad

o)22

ﾟ52'

35.5

"65

ﾟ43'

42.6

"Pb

Sim

ple

vein

sga

lena

, qua

rtzO

rdov

icia

nSa

ndst

ones

, silt

ston

es, s

hale

sA

coite

For

mat

ion

145

JUJU

YZ-

15O

rient

alSi

erra

de

Agu

ilar

23ﾟ0

9'65

ﾟ43'

Pb-A

g-Zn

SED

EX14

6JU

JUY

Z-15

Tapa

da -

Fitz

Hug

hSi

erra

de

Agu

ilar

23ﾟ1

5'65

ﾟ44'

Pb-A

g-Zn

SED

EX14

7JU

JUY

Z-16

Exod

o I y

II, C

ristin

a, S

anta

Ana

Cia

nzo

23° 0

9'65

° 09'

Pb-A

g-Zn

Poly

met

allic

vei

nsch

alco

pyrit

e, p

yrite

, bor

nite

, gal

ena

Prec

ambr

ian

Schi

sts,

slat

esPu

ncov

isca

na F

orm

atio

n14

8JU

JUY

Z-16

Mud

ana

(Cas

a M

ocha

,En

cruc

ijada

, Abr

a de

Min

as)

Sier

ra d

el H

orco

nal

23ﾟ2

1'65

ﾟ13'

Pb-B

arite

Vei

nsba

rite,

gal

ena

90,0

00t

Prec

ambr

ian

Slat

es, g

reyw

acke

s, sc

hist

sPu

ncov

isca

na F

orm

atio

n

149

JUJU

YZ-

16Sa

n M

arco

sM

oya

(Uqu

ía)

23ﾟ2

0'65

ﾟ16'

Bar

iteV

eins

barit

eC

ambr

ian

Qua

rtzite

sM

esón

Gro

up15

0JU

JUY

Z-16

Zaira

Cris

tina,

Six

ilera

, Yac

orai

te,

José

Edu

ardo

Uqu

ía23

ﾟ21'

65ﾟ1

8'B

arite

Vei

nsba

rite

60,0

00 t

Cam

bria

nQ

uartz

ites a

nd sh

ales

Mes

ón G

roup

151

JUJU

YZ-

17N

oem

í Ant

onin

a, L

a A

rgen

tina,

Sant

a B

árba

raC

erro

El G

igan

te(A

parz

o)23

ﾟ02'

65ﾟ0

5'B

arite

Vei

ns in

faul

tsPb

:4-1

1%, A

g:<2

00g/

tO

rdov

icia

nSa

ndst

ones

, qua

rtzite

s and

shal

esA

coite

For

mat

ion

152

JUJU

YZ-

17Sa

nta

Ana

, San

Raf

ael

Abr

a de

Zen

ta23

ﾟ18'

65ﾟ0

1'Pb

-Cu

Vei

nsga

lena

, cha

lcoc

ite, q

uartz

, bar

ite36

,000

t - 6

0,00

0t(in

ferr

ed),

7,20

0t (t

otal

)O

rdov

icia

nSa

ndsto

nes,

shal

esC

entin

ela

Form

atio

n

153

SALT

AZ-

17A

idee

Sier

ra d

e Ze

nta

23ﾟ0

9'64

ﾟ54'

Pb-B

arite

Vei

ns in

faul

tsO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n15

4SA

LTA

Z-17

And

rés,

Aga

rayo

, Mol

ino,

Zen

taSi

erra

de

Zent

a23

ﾟ06'

65ﾟ0

0'B

arite

-Pb

Vei

ns in

faul

tsO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n15

5SA

LTA

Z-17

Con

stan

za, N

arci

saSi

erra

de

Zent

a23

ﾟ07'

64ﾟ5

3'Pb

Vei

ns in

faul

tsO

rdov

icia

nG

reyw

acke

s, pe

lites

and

quar

tziti

c sa

ndst

ones

Sant

a V

icto

ria G

roup

156

SALT

AZ-

17C

ristia

nSi

erra

de

Zent

a23

ﾟ06'

65ﾟ0

3'B

arite

-Pb

Vei

ns in

faul

tsO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n15

7SA

LTA

Z-17

Lagu

nita

Sier

ra d

e Ze

nta

23ﾟ1

0'65

ﾟ01'

FeV

eins

in fa

ults

Ord

ovic

ian

Qua

rtzos

e sa

ndst

ones

, pel

itic

rock

sSa

nta

Vic

toria

Gro

up

158

SALT

AZ-

17R

osa,

　A

gustí

nSi

erra

de

Zent

a23

ﾟ13'

64ﾟ5

8'Pb

Vei

ns in

faul

tsO

rdov

icia

nG

reyw

acke

s, pe

lites

and

quar

tziti

c sa

ndst

ones

Sant

a V

icto

ria G

roup

159

SALT

AZ-

17Sa

n Ju

an, S

an Jo

séSi

erra

de

Zent

a23

ﾟ04'

65ﾟ0

3'B

arite

-Pb

Vei

ns in

faul

tsO

rdov

icia

nSh

ales

and

sand

ston

esSa

nta

Ros

ita F

orm

atio

n

160

SALT

AZ-

17Sa

n M

artín

Sier

ra d

e Ze

nta

23ﾟ0

1'65

ﾟ03'

Bar

ite-P

bV

eins

in fa

ults

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

161

SALT

AZ-

17Si

rio A

rgen

tina

Sier

ra d

e Ze

nta

23ﾟ0

2'65

ﾟ03'

Bar

ite-P

bV

eins

in fa

ults

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

162

SALT

AZ-

18El

Car

dona

l, La

s Ver

tient

esSi

erra

de

Ran

gel

23ﾟ2

7'66

ﾟ16'

PbV

eins

Ord

ovic

ian

Terti

ary

Gre

ywac

kes,

pelit

es a

ndqu

artz

itic

sand

ston

es. I

gnim

brite

sFa

lda

Cié

naga

For

mat

ion

163

SALT

AZ-

18La

Col

orad

aSi

erra

de

Ran

gel

23ﾟ3

8'55

.7"

66ﾟ1

7'14

.3"

Cu-

Pb-Z

n- F

eSE

DEX

, mas

sive

sulp

hide

Fe: 3

3-50

%,

S:20

-30%

,C

u:0.

5%, Z

n:0.

9-1%

,Pb

:0.1

-1%

, Ag:

7-10

g/t,

Au:

0.7g

/t

12M

t (in

dica

ted)

Ord

ovic

ian

Qua

rtziti

c sa

ndst

ones

,gr

eyw

acke

s and

shal

es.

Gra

nite

s

Chi

quer

os F

orm

atio

n, C

obre

sG

rano

dior

ite

164

SALT

AZ-

18La

Nor

teña

Sier

ra d

e R

ange

l23

ﾟ29'

66ﾟ1

6'C

uV

eins

Ord

ovic

ian

Shal

es, g

reyw

acke

s and

quar

tziti

c sa

ndst

ones

Fald

a C

iéna

ga F

orm

atio

n

165

SALT

AZ-

19Pu

eblo

Vie

jo, G

abrie

la, L

agun

itaSa

n A

nton

io d

e lo

s23

ﾟ52'

66ﾟ1

4'A

uA

lluvi

al g

old

gold

Plei

stoc

ene

- Hol

ocen

eD

etrit

al a

ccum

ulat

ion

Punc

ovis

cana

For

mat

ion

166

JUJU

YZ-

20R

a, Is

is, O

siris

Cer

ro C

obre

s23

ﾟ25'

66ﾟ1

1'R

EE-T

hC

arbo

natit

e di

keth

orite

, tho

riani

te, g

alen

a, c

halc

opyr

ite,

pyrit

e, q

uartz

, bar

ite, c

alci

te, h

emat

iteTh

O2:0

.02%

,ET

R:0

.08%

1Mt

Ord

ovic

ian

Lutit

eC

hiqu

eros

For

mat

ion

167

SALT

AZ-

20C

urac

a-Es

trella

de

Orie

nte

Cer

ro C

obre

s23

ﾟ27'

66ﾟ1

1'R

EE-T

hC

arbo

natit

e di

keth

orite

, tho

riani

te, g

alen

a, c

halc

opyr

ite,

pyrit

e, q

uartz

, bar

ite, c

alci

te, h

emat

iteTh

O2:0

.45%

,ET

R+Y

:0.6

%6M

t (ge

olog

ical

, for

all

bodi

es)

Ord

ovic

ian

Lutit

eC

hiqu

eros

For

mat

ion

168

SALT

AZ-

20El

Ucu

Cer

ro C

obre

s23

ﾟ32'

66ﾟ1

5'R

EE-T

hC

arbo

natit

e di

keth

orite

, tho

riani

te, g

alen

a, c

halc

opyr

ite,

pyrit

e, q

uartz

, bar

ite, c

alci

te, h

emat

iteTh

O2:0

.095

%,

ETR

+Y:0

.25%

Ord

ovic

ian,

Cre

tace

ous

Gre

ywac

ke, Q

uartz

ite, P

eliti

cro

ck, G

rani

te, A

lkal

i-sye

nite

Aco

ite F

orm

atio

n, R

ange

l For

mat

ion

169

SALT

AZ-

20La

Aur

elia

Cer

ro C

obre

s23

ﾟ27'

66ﾟ1

2'R

EE-T

hC

arbo

natit

e di

keth

orite

, tho

riani

te, g

alen

a, c

halc

opyr

ite,

pyrit

e, q

uartz

, bar

ite, c

alci

te, h

emat

iteTh

O2:0

.52%

,ET

R+Y

:0.6

5%O

rdov

icia

nG

rano

dior

iteC

obre

s Gra

nodi

orite

170

SALT

AZ-

20La

Bar

baC

erro

Cob

res

23ﾟ2

6'66

ﾟ11'

REE

-Th

Car

bona

tite

dike

thor

ite, t

horia

nite

, gal

ena,

cha

lcop

yrite

,py

rite,

qua

rtz, b

arite

, cal

cite

, hem

atite

ThO

2:0.4

2%,

ETR

+Y:0

.6%

Ord

ovic

ian

Gra

nodi

orite

Cob

res G

rano

dior

ite

171

SALT

AZ-

20Pl

ater

iaC

erro

Cob

res

23ﾟ3

2'66

ﾟ14'

REE

-Th

Car

bona

tite

dike

thor

ite, t

horia

nite

, gal

ena,

cha

lcop

yrite

,py

rite,

qua

rtz, b

arite

, cal

cite

, hem

atite

ThO

2:0.0

05-0

.2%

,ET

R+Y

:0.0

3-0.

09%

Ord

ovic

ian

Gra

nodi

orite

Cob

res G

rano

dior

ite

172

SALT

AZ-

20R

ange

l, A

urel

ia y

otra

sC

erro

Cob

res

23ﾟ3

4'66

ﾟ15'

REE

-Th

Car

bona

tite

dike

thor

ite, t

horia

nite

, gal

ena,

cha

lcop

yrite

,py

rite,

qua

rtz, b

arite

, cal

cite

, hem

atite

ThO

2:0.2

5%,

ETR

+Y:0

.45%

Ord

ovic

ian

Gra

nodi

orite

Cob

res G

rano

dior

ite

173

SALT

AZ-

20Ti

eria

s Rar

asC

erro

Cob

res

23ﾟ2

9'66

ﾟ13'

REE

-Th

Car

bona

tite

dike

thor

ite, t

horia

nite

, gal

ena,

cha

lcop

yrite

,py

rite,

qua

rtz, b

arite

, cal

cite

, hem

atite

Ord

ovic

ian

Gra

nodi

orite

Cob

res G

rano

dior

ite

174

JUJU

YZ-

21A

conc

agua

, Sal

inas

Gra

ndes

Salin

as G

rand

es23

ﾟ36'

65ﾟ5

2'Sa

ltEv

apor

itePl

eist

ocen

e - H

oloc

ene

Fine

sedi

men

tary

bed

s, Su

rfac

esa

line

crus

t17

5JU

JUY

Z-21

Adr

ián,

Ang

élic

a, C

irus,C

onra

do,

Cha

ñi, S

ilvia

Salin

as G

rand

es23

ﾟ34'

65ﾟ5

2'Sa

ltEv

apor

itePl

eist

ocen

e - H

oloc

ene

Fine

sedi

men

tary

bed

s, Su

rfac

esa

line

crus

t17

6JU

JUY

Z-21

Bor

atay

oc, L

udov

ica,

Edu

ardo

,Fe

deric

o an

d ot

hers

Salin

as G

rand

es23

ﾟ20'

65ﾟ5

3'B

orat

esEv

apor

iteul

exite

, tin

cal

B2O

3:30-

35%

622,

000t

(dry

ule

xite

)Pl

eist

ocen

e - H

oloc

ene

Inte

rcal

atio

n of

salt

beds

and

fine-

detri

tic se

dim

ents

Evap

oriti

c D

epos

its

177

JUJU

YZ-

21B

orat

eras

Juje

ñas

Salin

as G

rand

es23

ﾟ45'

65ﾟ5

8'B

orat

esEv

apor

iteul

exite

, tin

cal

Plei

stoc

ene

- Hol

ocen

eIn

terc

alat

ion

of sa

lt be

ds a

ndfin

e-de

tritic

sedi

men

tsEv

apor

itic

Dep

osits

178

JUJU

YZ-

21G

rupo

Bue

nos A

ires,

Gru

poC

ordo

ba, G

rupo

Juju

y, G

rupo

Sal

taan

d ot

hers

Salin

as G

rand

es23

ﾟ21'

65ﾟ5

3'B

orat

esEv

apor

iteul

exite

, tin

cal

Plei

stoc

ene

- Hol

ocen

eIn

terc

alat

ion

of sa

lt be

ds a

ndfin

e-de

tritic

sedi

men

tsEv

apor

itic

Dep

osits

179

JUJU

YZ-

21G

rupo

Poz

o C

avad

o an

d ot

hers

Salin

as G

rand

es23

ﾟ43'

65ﾟ5

7'B

orat

esEv

apor

ite a

nd n

odul

eul

exite

, tin

cal

boro

n an

hydr

ide

:30

.90%

500,

000t

(raw

bor

ate)

Plei

stoc

ene

- Hol

ocen

eIn

terc

alat

ion

of sa

lt be

ds a

ndfin

e-de

tritic

sedi

men

tsEv

apor

itic

Dep

osits

180

JUJU

YZ-

21G

rupo

Tuc

umán

, Gru

po R

osar

ioan

d ot

hers

Salin

as G

rand

es23

ﾟ21'

65ﾟ5

4'B

orat

esEv

apor

iteul

exite

, tin

cal

Plei

stoc

ene

- Hol

ocen

eIn

terc

alat

ion

of sa

lt be

ds a

ndfin

e-de

tritic

sedi

men

tsEv

apor

itic

Dep

osits

181

JUJU

YZ-

21In

goen

, Mol

ina,

Aqu

adita

, Jua

nM

anue

l and

oth

ers

Salin

as G

rand

es23

ﾟ44'

65ﾟ5

7'B

orat

esEv

apor

iteul

exite

, tin

cal

840,

000t

(dry

bor

ate)

Plei

stoc

ene

- Hol

ocen

eIn

terc

alat

ion

of sa

lt be

ds a

ndfin

e-de

tritic

sedi

men

tsEv

apor

itic

Dep

osits

182

JUJU

YZ-

21Só

crat

es, S

atur

noSa

linas

Gra

ndes

23ﾟ3

6'65

ﾟ53'

Salt

Evap

orite

Plei

stoc

ene

- Hol

ocen

eFi

ne se

dim

enta

ry b

eds,

Surf

ace

salin

e cr

ust

183

SALT

AZ-

21Jú

pite

r, Pr

ode,

Yor

uga,

La

Salin

as G

rand

es23

ﾟ44'

66ﾟ0

2'Sa

ltEv

apor

iteul

exite

, tin

cal

Plei

stoc

ene

- Hol

ocen

eR

elle

no su

perio

r del

sala

r/Ev

apor

itic

Dep

osits

184

SALT

AZ-

21Lo

s And

es, N

euqu

én, C

hubu

tSa

linas

Gra

ndes

23ﾟ4

4'66

ﾟ07'

Bor

ates

Evap

orite

ulex

ite, t

inca

lPl

eist

ocen

e - H

oloc

ene

Rel

leno

supe

rior d

elsa

lar/I

nter

cala

ci?n

de

nive

les

salin

os y

det

r?tic

os fi

nos

Evap

oriti

c D

epos

its

185

SALT

AZ-

21M

orro

Col

orad

oSa

linas

Gra

ndes

23ﾟ4

0'66

ﾟ10'

Bor

ates

Evap

orite

ulex

ite, t

inca

lPl

eist

ocen

e - H

oloc

ene

Rel

leno

supe

rior d

elsa

lar/I

nter

cala

ci?n

de

nive

les

salin

os y

det

r?tic

os fi

nos

Evap

oriti

c D

epos

its

186

SALT

AZ-

21N

iño

Mue

rto, W

alte

rio, S

anFr

anci

sco

Salin

as G

rand

es23

ﾟ43'

66ﾟ1

2'B

orat

esEv

apor

iteul

exite

, tin

cal

Plei

stoc

ene

- Hol

ocen

eR

elle

no su

perio

r del

sala

r/Int

erca

laci

?n d

e ni

vele

ssa

linos

y d

etr?

ticos

fino

s

Evap

oriti

c D

epos

its

187

JUJU

YZ-

22A

chac

anal

San

José

de

Cha

ñi23

° 54

'65

ﾟ48'

Bar

iteSi

mpl

e ve

ins

barit

e, c

alci

teO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

188

JUJU

YZ-

22Ja

runc

o,　

Col

orad

oPu

erta

de

Col

orad

os23

ﾟ35'

65ﾟ3

8'B

arite

Sim

ple

vein

sba

rite,

cal

cite

Prec

ambr

ian

Slat

es, p

hylli

tes,

schi

sts

Punc

ovis

cana

For

mat

ion

189

JUJU

YZ-

22La

Mor

enita

Sier

ra d

e C

hañi

23ﾟ5

5'65

ﾟ48'

Bar

iteSi

mpl

e ve

ins

barit

e, c

alci

teO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

190

JUJU

YZ-

22La

Vas

ca, S

anta

Mar

íaLi

pan

23ﾟ3

9'65

ﾟ42'

Bar

iteSi

mpl

e ve

ins

barit

e, c

alci

teO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

191

JUJU

YZ-

22N

atas

iaLi

pan

23ﾟ4

3'65

ﾟ43'

Bar

iteSi

mpl

e ve

ins

barit

e, c

alci

te44

,000

t (in

ferr

ed)

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n

4 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t19

2JU

JUY

Z-22

Rut

hSi

erra

de

Cha

ñi23

ﾟ52'

65ﾟ4

3'B

arite

Sim

ple

vein

sba

rite,

cal

cite

7,80

0t (i

nfer

red)

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n19

3JU

JUY

Z-22

Sant

a B

árba

ra (I

rigoy

en)

Sier

ra A

lta23

° 39

'65

° 37

'B

arite

Sim

ple

vein

sba

rite,

cal

cite

Prec

ambr

ian

Slat

es, p

hylli

tes,

schi

sts

Punc

ovis

cana

For

mat

ion

194

JUJU

YZ-

22Si

xto

Lipa

n23

ﾟ40'

65ﾟ4

2'B

arite

Sim

ple

vein

sba

rite,

cal

cite

Ord

ovic

ian

Sand

ston

es a

nd sh

ales

Aco

ite F

orm

atio

n19

5JU

JUY

Z-22

Tusc

a, S

alad

illo,

Piv

es,

Lipa

n23

ﾟ40'

00"

65ﾟ4

2'03

.2"

Bar

iteSi

mpl

e ve

ins

barit

e, c

alci

teO

rdov

icia

nSa

ndst

ones

and

shal

esA

coite

For

mat

ion

196

JUJU

YZ-

239

de ju

lio, V

enus

, Triq

ues,

Phob

os,

Gra

cia,

Eur

opa,

Dey

nos,

Com

pañ

era

I, II

y III

, Asia

, Are

nal,

Am

éric

a I y

II, A

lmon

a I y

II

Sier

ra A

lta23

ﾟ25'

65ﾟ2

9'Pb

-Ag-

ZnV

eins

gale

na, q

uartz

, bar

itePr

ecam

bria

nSc

hist

s, sl

ates

, gre

ywac

kes,

phyl

lites

Punc

ovis

cana

For

mat

ion

197

JUJU

YZ-

23A

rroyo

Des

pens

aH

uaca

lera

23ﾟ2

7'65

ﾟ29'

PbV

eins

gale

na, q

uartz

Prec

ambr

ian

Schi

sts,

slat

esPu

ncov

isca

na F

orm

atio

n19

8JU

JUY

Z-23

Cie

negu

illas

Purm

amar

ca23

ﾟ40'

65ﾟ3

1'C

uV

ein

Prec

ambr

ian

Schi

sts,

slat

es a

nd g

reyw

acke

sPu

ncov

isca

na F

orm

atio

n19

9JU

JUY

Z-23

Cob

re L

oma

Purm

amar

ca23

° 41

'65

° 31

'C

uV

ein

Prec

ambr

ian

Schi

sts,

slat

es a

nd g

reyw

acke

sPu

ncov

isca

na F

orm

atio

n

200

JUJU

YZ-

23El

Hal

cón

Yac

orai

te (Q

uebr

ada

deIri

quez

)23

ﾟ20'

65ﾟ2

8'B

arite

Vei

nC

ambr

ian

Qua

rtzite

s and

shal

es, b

asic

dike

sM

esón

Gro

up

201

JUJU

YZ-

23H

orno

sPu

rmam

arca

23ﾟ3

8'65

º 28'

Cu

Vei

nPr

ecam

bria

nSc

hist

s, sl

ates

and

gre

ywac

kes

Punc

ovis

cana

For

mat

ion

202

JUJU

YZ-

23H

uich

aira

Hum

ahua

ca23

ﾟ33'

65ﾟ2

8'C

uV

ein

chal

copy

rite,

pyr

ite, m

alac

hite

, qua

rtzPr

ecam

bria

nSa

nd c

lay

schi

sts

Punc

ovis

cana

For

mat

ion

203

JUJU

YZ-

23M

aría

Cris

tina

Iriq

uez

(Que

brad

a de

Yac

orai

te)

23ﾟ2

2'65

ﾟ28'

Bar

iteba

rite,

gal

ena

Cam

bria

n, O

rdov

icia

nQ

uartz

ites,

quar

tziti

c sa

ndst

ones

,sa

ndsto

nes a

nd sh

ales

Mes

ón G

roup

, Aco

ite F

orm

atio

n

204

JUJU

YZ-

23Po

treril

los

Que

brad

a de

Yac

orai

te23

ﾟ18'

65ﾟ2

6'C

uV

ein

and

lens

esch

alco

site

, mal

achi

teC

ambr

ian

Qua

rtzite

s, sl

ates

and

ultr

abas

icdi

kes

Mes

ón G

roup

205

JUJU

YZ-

23Q

uebr

ada

de lo

s Tol

dos

Hum

ahua

ca23

ﾟ13'

65ﾟ2

9'C

uV

ein

Cam

bria

nQ

uartz

ites y

shal

esM

esón

Gro

up20

6JU

JUY

Z-23

Que

ta C

ara,

Lid

ia, J

orge

Artu

ro,

Fern

ando

Dan

iel,

Cla

udia

, Cés

arA

ugus

to

Hum

ahua

ca23

ﾟ23'

65ﾟ2

5'C

uV

ein

Prec

ambr

ian

- Cam

bria

nSc

hist

s, sl

ates

and

qua

rtzite

sPu

ncov

isca

na F

orm

atio

n, M

esón

Gro

up

207

JUJU

YZ-

23Sa

n Jo

séH

umah

uaca

23ﾟ2

6'65

° 28'

Pb-Z

nV

eins

Prec

ambr

ian

Schi

sts,

slat

esPu

ncov

isca

na F

orm

atio

n20

8JU

JUY

Z-23

San

José

, San

Juan

Hum

ahua

ca23

ﾟ13'

65ﾟ2

3'Pb

-Zn

Vei

nsC

ambr

ian

Qua

rtzite

s, sh

ales

Mes

ón G

roup

209

JUJU

YZ-

24A

bra

de la

s Cañ

as, Y

olan

da l,

ll y

Tum

baya

23ﾟ5

1'65

ﾟ22'

PbV

eins

gale

na, q

uartz

Prec

ambr

ian

Schi

sts,

slat

esPu

ncov

isca

na F

orm

atio

n21

0JU

JUY

Z-24

Cho

rrillo

sLe

ón-V

olcá

n24

ﾟ00'

65ﾟ2

6'C

u-A

g-Sb

-Pb

Vei

n an

d br

ecci

ated

vei

nch

alco

pyrit

e, p

yrite

, bor

nite

, mal

achi

te,

azur

iteC

u:2.

9%74

,700

t (in

dica

ted)

Prec

ambr

ian

Schi

sts,

slat

es, l

imes

tone

s,ph

yllit

esPu

ncov

isca

na F

orm

atio

n

211

JUJU

YZ-

24C

oiru

ro, M

aría

Rem

edio

s, N

uevo

Coi

ruro

, Chi

quita

Tum

baya

23ﾟ4

4'48

.2"

65ﾟ2

9'57

.8"

Sb-A

uEp

ither

mal

stib

nite

, gol

d, q

uartz

Prec

ambr

ian

Schi

sts,

slat

es a

nd g

reyw

acke

s,rh

yolit

ic d

ikes

Punc

ovis

cana

For

mat

ion

212

JUJU

YZ-

24Ed

ith L

uisa

Purm

amar

ca23

ﾟ45'

65ﾟ3

5'C

uV

ein

mal

achi

te, c

halc

opyr

itePr

ecam

bria

nPh

yllit

ic sc

hist

s and

slat

esPu

ncov

isca

na F

orm

atio

n21

3JU

JUY

Z-24

Gen

eral

Güe

mes

Tum

baya

23ﾟ4

8'65

ﾟ28'

Bar

iteV

eins

barit

ePr

ecam

bria

nSc

hist

s and

slat

esPu

ncov

isca

na F

orm

atio

n21

4JU

JUY

Z-24

La It

alia

naLe

ón24

ﾟ02'

65ﾟ2

8'Pb

Vei

nsga

lena

, sph

aler

ite, c

halc

opyr

ite, p

yrite

Prec

ambr

ian

Schi

sts,

slat

esPu

ncov

isca

na F

orm

atio

n21

5JU

JUY

Z-24

Vol

cán

Vol

cán

23ﾟ5

3'65

ﾟ31'

Cu

Vei

n, le

nses

and

irre

gula

rve

inC

u:13

.66%

Prec

ambr

ian

Schi

sts,

slat

es a

nd g

reyw

acke

sPu

ncov

isca

na F

orm

atio

n

216

JUJU

YZ-

2511

de

Oct

ubre

, Hon

dura

s,Pa

ntan

illo

Cal

ilegu

a24

ﾟ12'

65ﾟ0

4'Fe

Man

tifor

m, s

tratif

orm

,oo

litic

, tur

bidi

ticsp

ecul

arite

, thu

ringi

te, b

iotit

e, h

ydra

ted

silic

a, li

mon

iteTy

pica

l ore

; Fe 2

O3:6

5%,

CaO

:0.6

6%,

MgO

:0.4

0%,

TiO

2:0.7

9%,

MnO

:0.0

3%,

P 2O

5:1.1

7%, S

:0.2

2%,

Silu

rian

Lipe

ón F

orm

atio

n

217

JUJU

YZ-

25A

rea

Min

a de

hie

rro

9 de

Oct

ubre

Cal

ilegu

a24

ﾟ14'

65ﾟ0

5'Ph

osph

ates

Man

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:2

.8-5

.9%

Ord

ovic

ian

Qua

rtzos

e sa

ndst

ones

, Lut

ites

Cen

tinel

a Fo

rmat

ion,

Lab

rado

Form

atio

n21

8JU

JUY

Z-25

Car

gade

ro C

hauq

ue (R

ío C

apill

as)

Cal

ilegu

a24

ﾟ02'

65ﾟ0

7'Ph

osph

ates

Man

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:4

.6%

315,

000t

Ord

ovic

ian

Qua

rtzos

e sa

ndst

ones

, Lut

ites

Cen

tinel

a Fo

rmat

ion,

Lab

rado

Form

atio

n21

9JU

JUY

Z-25

Cer

ro L

abra

doC

alile

gua

24ﾟ0

2'65

ﾟ10'

FeM

antif

orm

, stra

tifor

m,

oolit

ic, t

urbi

ditic

spec

ular

ite, t

hurin

gite

, bio

tite,

hyd

rate

dsi

lica,

lim

onite

Che

mis

try o

f the

rese

rve;

Fe:

35%

,Si

O2:

37%

, S:0

.09%

,

Silu

rian

Ferru

gino

us m

icac

eous

sand

stone

, Iro

n be

dLi

peón

For

mat

ion

220

JUJU

YZ-

25M

ina

9 de

Oct

ubre

Cal

ilegu

a24

ﾟ13'

65ﾟ0

7'Fe

Man

tifor

m, s

tratif

orm

,oo

litic

, tur

bidi

ticsp

ecul

arite

, thu

ringi

te, b

iotit

e, h

ydra

ted

silic

a, li

mon

iteFe

:65.

28%

,Si

O2:2

0.27

%, S

:0.2

2%,

P:1.

17%

, TiO

2:0.8

%

Silu

rian

Ferru

gino

us m

icac

eous

sand

stone

, Iro

n be

dLi

peón

For

mat

ion

221

JUJU

YZ-

25R

ío N

egro

Cal

ilegu

a23

ﾟ43'

65ﾟ1

0'Ph

osph

ates

Man

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:4

.11-

5.39

%O

rdov

icia

nQ

uartz

ose

sand

ston

es, L

utite

sC

entin

ela

Form

atio

n, L

abra

doFo

rmat

ion

222

JUJU

YZ-

25R

ío O

cloy

as (R

ío C

atre

)C

alile

gua

23ﾟ5

5'65

ﾟ12'

Phos

phat

esM

antif

orm

, bio

coen

ose

Shel

ls o

f Lin

gula

Bla

chio

podo

conc

entra

tions

P 2O

5:6.3

%41

,800

tO

rdov

icia

nQ

uartz

ose

sand

ston

es, L

utite

sC

entin

ela

Form

atio

n, L

abra

doFo

rmat

ion

223

JUJU

YZ-

25R

ío R

ange

lC

alile

gua

23ﾟ5

8'65

ﾟ10'

Phos

phat

esM

antif

orm

, bio

coen

ose

Shel

ls o

f Lin

gula

Bla

chio

podo

conc

entra

tions

P 2O

5:7.3

6%O

rdov

icia

nQ

uartz

ose

sand

ston

es, L

utite

sC

entin

ela

Form

atio

n, L

abra

doFo

rmat

ion

224

JUJU

YZ-

25R

ío S

an L

ucas

Cal

ilegu

a23

ﾟ34'

65ﾟ0

5'Ph

osph

ates

Man

tifor

m, b

ioco

enos

eSh

ells

of L

ingu

la B

lach

iopo

doco

ncen

tratio

nsP 2

O5:<

14.4

%O

rdov

icia

nQ

uartz

ose

sand

ston

es, L

utite

sC

entin

ela

Form

atio

n, L

abra

doFo

rmat

ion

225

JUJU

YZ-

25R

ío T

rem

entin

alC

alile

gua

23ﾟ5

1'65

ﾟ12'

Phos

phat

esM

antif

orm

, bio

coen

ose

Shel

ls o

f Lin

gula

Bla

chio

podo

conc

entra

tions

P 2O

5:3.5

%O

rdov

icia

nQ

uartz

ose

sand

ston

es, L

utite

sC

entin

ela

Form

atio

n, L

abra

doFo

rmat

ion

226

JUJU

YZ-

25Za

pla-

9 de

Oct

ubre

Cal

ilegu

a24

ﾟ12'

65ﾟ0

4'Fe

Man

tifor

m, s

tratif

orm

,oo

litic

, tur

bidi

ticsp

ecul

arite

, thu

ringi

te, b

iotit

e, h

ydra

ted

silic

a, li

mon

iteSi

luria

nFe

rrugi

nous

mic

aceo

ussa

ndsto

ne, I

ron

bed

Lipe

on F

orm

atio

n

227

SALT

AZ-

26A

bra

del G

allo

Agu

a de

Cas

tilla

24ﾟ1

9'22

"66

ﾟ28'

16"

Au

Allu

vial

gol

dgo

ldQ

uate

rnar

ySa

nds

Mod

ern

depo

sits

228

SALT

AZ-

26A

cazo

que

Agu

a de

Cas

tilla

24ﾟ1

7'17

"66

ﾟ22'

42"

PbV

ein,

epi

ther

mal

gale

na, c

halc

opyr

ite, t

etra

hedr

ite, p

yrite

,st

ibni

te, b

arite

, qua

rtz, f

luor

ite,

ceru

ssite

, azu

rite,

mal

achi

te, l

imon

ite

Ord

ovic

ian

Gra

nodi

orite

Oire

For

mat

ion

229

SALT

AZ-

26C

alifo

rnia

La P

oma

24ﾟ1

7'14

"66

ﾟ29'

02"

Pb-A

gpo

lym

etal

lic, l

epto

ther

mal

vein

gale

na, s

phal

erite

, pyr

ite, c

halc

opyr

ite,

quar

tzPb

:11.

02%

, Ag:

190.

8g/t

(ave

rage

of t

he d

istri

ct)

260,

000t

(to

tal f

orPb

+Ag

of th

e di

stric

t)Te

rtiar

yD

acite

sA

gua

Cal

ient

e Fo

rmat

ion

230

SALT

AZ-

26C

onco

rdia

Con

cord

ia24

ﾟ12'

27"

66ﾟ2

4'19

"Pb

-Ag-

Znpo

lym

etal

lic, m

eso-

epith

erm

al v

eins

gale

na, a

rgen

tite,

tetra

hedr

ite,

spha

lerit

e, c

halc

opyr

ite, p

yrite

, bor

nite

,ac

anth

ite, a

ngle

site

, cer

ussi

te, l

imon

ite,

Pb:5

.59%

, Zn:

1.26

%,

Cu:

0.6%

, Ag:

490g

/t.27

0,00

0t, 4

0,00

0t(m

easu

red)

Cre

tace

ous

Con

glom

erat

es,

daci

tes a

nd d

aciti

c br

ecci

asPi

rgua

Sub

grou

p, P

unta

del

Vie

nto

Form

atio

n

231

SALT

AZ-

26El

Abr

aLa

Pom

a24

ﾟ16'

50"

66ﾟ2

8'01

"Sb

Vei

n, e

pith

erm

alst

ibni

te, g

old,

qua

rtzTe

rtiar

y (M

ioce

ne)

Dac

iteA

gua

Cal

ient

e Fo

rmat

ion

232

SALT

AZ-

26Em

ilia

Con

cord

ia24

ﾟ11'

66ﾟ2

4'Pb

poly

met

allic

, mes

o-ep

ither

mal

vei

nsga

lena

, arg

entit

e, te

trahe

drite

,sp

hale

rite,

cha

lcop

yrite

, pyr

ite, b

orni

te,

acan

thite

, ang

lesi

te, c

erus

site

, lim

onite

,

Cre

tace

ous

Con

glom

erat

esPi

rgua

Sub

grou

p

233

SALT

AZ-

26Es

ther

La P

oma

24ﾟ1

5'47

"66

ﾟ27'

46"

SbV

ein,

epi

ther

mal

stib

nite

, gol

d, q

uartz

Sb:2

-3%

100,

000t

Terti

ary

(Mio

cene

)D

acite

Agu

a C

alie

nte

Form

atio

n23

4SA

LTA

Z-26

Fara

llone

sLa

Pom

a24

ﾟ16'

53"

66ﾟ2

6'52

"Sb

Vei

n, e

pith

erm

alst

ibni

te, g

old,

qua

rtzTe

rtiar

y (M

ioce

ne)

Dac

iteA

gua

Cal

ient

e Fo

rmat

ion

235

SALT

AZ-

26Fl

amar

ión

Con

cord

ia24

ﾟ10'

06"

66ﾟ2

4'19

"Pb

poly

met

allic

, lep

toth

erm

alve

inC

reta

ceou

sC

ongl

omer

ates

Pirg

ua S

ubgr

oup

236

SALT

AZ-

26V

icto

riaIn

cach

ule

24ﾟ1

6'06

"66

ﾟ26'

55"

SbV

eins

, epi

ther

mal

stib

nite

, qua

rtz, g

old,

pyr

iteSb

:<30

%Te

rtiar

y (M

ioce

ne)

Dac

iteA

gua

Cal

ient

e Fo

rmat

ion

237

SALT

AZ-

26La

Esp

eran

za, R

osa,

La

Pom

aLa

Pom

a24

ﾟ14'

33"

66ﾟ2

8'51

"Pb

-Ag-

Znpo

lym

etal

lic, l

epto

ther

mal

vein

gale

na, s

phal

erite

, pyr

ite, c

halc

opyr

ite,

quar

tzPb

:11%

, Ag:

190g

/t26

0,00

0tTe

rtiar

yD

acite

s and

dac

itic

tuff

sA

gua

Cal

ient

e Fo

rmat

ion

238

SALT

AZ-

26La

Olv

idad

aA

guas

Cal

ient

es24

ﾟ12'

10"

66ﾟ3

3'38

"Pb

Vei

nga

lena

, bar

ite, q

uartz

, lim

onite

,he

mat

ite, c

erus

site

Terti

ary

(Plio

cene

)A

ndes

iteR

umib

ola

Form

atio

n

239

SALT

AZ-

26La

Paz

Con

cord

ia24

ﾟ11'

51"

66ﾟ2

4'21

"Pb

-Ag-

Znpo

lym

etal

lic, m

eso-

epith

erm

al v

eins

gale

na, a

rgen

tite,

tetra

hedr

ite,

spha

lerit

e, c

halc

opyr

ite, p

yrite

, bor

nite

,ac

anth

ite, a

ngle

site

, cer

ussi

te, l

imon

ite,

Pb:1

4.25

%, Z

n:2.

4%,

Cu:

0.15

%, A

g:33

7g/t

Cre

tace

ous

Con

glom

erat

es,

daci

tes a

nd d

aciti

c br

ecci

asPi

rgua

Sub

grou

p, P

unta

del

Vie

nto

Form

atio

n

240

SALT

AZ-

26M

atild

eC

onco

rdia

24ﾟ1

1'54

"66

ﾟ25'

06"

Pb-A

g-Zn

poly

met

allic

, mes

o-ep

ither

mal

vei

nsga

lena

, arg

entit

e, te

trahe

drite

,sp

hale

rite,

cha

lcop

yrite

, pyr

ite, b

orni

te,

acan

thite

, ang

lesi

te, c

erus

site

, lim

onite

,

Ord

ovic

ian

Gra

nodi

orite

, dac

ites a

nd d

aciti

cbr

ecci

asO

ire F

orm

atio

n, P

unta

del

Vie

nto

Form

atio

n

241

SALT

AZ-

26O

rgan

ullo

(pla

cere

s)O

rgan

ullo

24ﾟ1

5'11

"66

ﾟ20'

51"

Au

Allu

vial

gol

dgo

ldQ

uate

rnar

ySa

nds,

grav

els

Terr

ace

sedi

men

ts24

2SA

LTA

Z-26

Polv

orill

aC

onco

rdia

24ﾟ1

1'22

"66

ﾟ25'

29"

Pb-A

g-Zn

poly

met

allic

, mes

o-ep

ither

mal

vei

nsga

lena

, arg

entit

e, te

trahe

drite

,sp

hale

rite,

cha

lcop

yrite

, pyr

ite, b

orni

te,

acan

thite

, ang

lesi

te, c

erus

site

, lim

onite

,

Terti

ary

Dac

ites a

nd d

aciti

c br

ecci

asPu

nta

del V

ient

o Fo

rmat

ion

243

SALT

AZ-

26R

ecue

rdo

Con

cord

ia24

ﾟ10'

31"

66ﾟ2

4'06

"Pb

-Ag-

Zn-A

upo

lym

etal

lic, m

eso-

epith

erm

al v

eins

gale

na, a

rgen

tite,

tetra

hedr

ite,

spha

lerit

e, c

halc

opyr

ite, p

yrite

, bor

nite

,ac

anth

ite, a

ngle

site

, cer

ussi

te, l

imon

ite,

Pb:1

.82%

, Zn:

9.55

%,

Cu:

1.82

%, A

g:13

0g/t

Cre

tace

ous

Con

glom

erat

esPi

rgua

Sub

grou

p

244

SALT

AZ-

26Se

bast

ián

Agu

a de

Cas

tilla

24ﾟ1

7'53

"66

ﾟ23'

25"

Bar

iteV

ein-

form

gale

na, f

luor

ite, c

halc

opyr

ite, q

uartz

Ord

ovic

ian

Gra

nodi

orite

Oire

Eru

ptiv

e C

ompl

ex24

5SA

LTA

Z-26

Sin

Nom

bre

Agu

a de

Cas

tilla

24ﾟ1

5'66

ﾟ20'

Au

Allu

vial

gol

dgo

ldQ

uate

rnar

ySa

nds,

grav

els

Terr

ace

sedi

men

ts

5 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t24

6SA

LTA

Z-26

Vic

uña

Con

cord

ia24

ﾟ09'

20"

66ﾟ2

3'59

"Pb

poly

met

allic

, mes

o-ep

ither

mal

vei

nsga

lena

, arg

entit

e, te

trahe

drite

,sp

hale

rite,

cha

lcop

yrite

, pyr

ite, b

orni

te,

acan

thite

, ang

lesi

te, c

erus

site

, lim

onite

,

Cre

tace

ous

Con

glom

erat

esPi

rgua

Sub

grou

p

247

SALT

AZ-

27C

erro

Gor

do (A

. de

R. n

° 20

-Pa

stos G

rand

es)

Pasto

s Gra

ndes

(Nev

ados

de P

aler

mo)

24ﾟ3

2'66

ﾟ22'

Au

Dis

sem

inat

ed in

frac

ture

zone

, tec

toni

c br

ecci

apy

rite,

cha

lcop

yrite

, gol

d, si

lica

Prec

ambr

ian

Slat

e, S

chis

t, B

recc

iaPu

ncov

isca

na F

orm

atio

n

248

SALT

AZ-

27D

iana

Org

anul

lo24

ﾟ26'

66ﾟ1

5'Pb

-Ag-

Zn-C

uV

eins

in fa

ults

, epi

ther

mal

gale

na, s

phal

erite

, pyr

ite, c

halc

opyr

ite,

tetra

hedr

ite, q

uartz

Ag:

302.

78g/

t,Pb

:10.

44%

, Zn:

3.40

%20

,000

t (to

tal)

Prec

ambr

ian,

Ter

tiary

Gre

ywac

kes a

nd p

hylli

tes.

Dac

ites a

nd tu

ffs

Punc

ovis

cana

For

mat

ion

249

SALT

AZ-

27D

on Ig

naci

oLa

Pom

a24

ﾟ40'

66ﾟ1

0'Pb

Vei

nsga

lena

Mio

cene

- Pl

ioce

neC

ontin

enta

l con

glom

erat

es,

sand

ston

es a

nd p

elite

sPa

yoga

still

a G

roup

250

SALT

AZ-

27El

Aca

yN

evad

a de

Aca

y24

ﾟ29'

16.8

"66

ﾟ11'

01.7

"Fe

-Cu-

Pb-Z

nSk

arn,

met

asom

atic

mag

netit

e, p

yrite

, cha

lcop

yrite

, cal

cite

,en

stat

ite, q

uartz

, chl

orite

, epi

dote

Fe:<

62%

Cre

tace

ous,

Olig

ocen

eG

arne

tifer

ous s

karn

, Lim

esto

ne,

Cal

care

ous s

ands

tone

, Mar

l,G

rani

te

Yac

orai

te F

orm

atio

n, A

cay

Form

atio

n

251

SALT

AZ-

27En

cruc

ijada

Aca

y24

ﾟ29'

33"

66ﾟ1

1'10

"C

u-Pb

Epith

erm

al, p

olym

etal

lic,

vein

sch

alco

pyrit

e, sp

hale

rite,

gal

ena,

pyr

iteC

reta

ceou

sC

alca

reou

s san

dsto

nes a

nd sh

ales

Yac

orai

te F

orm

atio

n

252

SALT

AZ-

27Es

tela

, Mar

ía In

és, M

aría

Cap

illas

24ﾟ3

0'39

"66

ﾟ01'

05"

Cu

Vei

nsch

alco

pyrit

e, p

yrite

, mal

achi

teM

aría

Inés

; Cu:

4.7%

,A

u:0.

6g/t,

Ag:

62g/

tPr

ecam

bria

nSh

ales

, sla

tes,

phyl

lites

and

quar

tzite

sPu

ncov

isca

na F

orm

atio

n

253

SALT

AZ-

27Fr

anci

sco,

Cor

nejo

, San

Roq

ueLa

s Cue

vas

24ﾟ2

1'57

"66

ﾟ03'

04"

Cu

Sim

ple

vein

s ass

ocia

ted

with

plu

tons

chal

copy

rite,

bor

nite

, cha

lcoc

ite,

limon

ite, m

alac

hite

, bar

ite, q

uartz

,az

urite

, chr

ysoc

olla

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

254

SALT

AZ-

27H

uaic

o H

ondo

Aca

y24

ﾟ28'

49"

66ﾟ1

1'26

"C

u-Pb

-Zn

Epith

erm

al p

olym

etal

licch

alco

pyrit

e, sp

hale

rite,

gal

ena,

pyr

iteTe

rtiar

y (O

ligoc

ene

- Mio

cene

)Sa

ndsto

nes

Río

Gra

nde

Form

atio

n

6 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t25

5SA

LTA

Z-27

Isa

l y ll

, San

San

tiago

Las C

ueva

s24

ﾟ22'

30"

66ﾟ0

1'20

"C

uSi

mpl

e ve

ins a

ssoc

iate

dw

ith p

luto

nsch

alco

pyrit

e, b

orni

te, c

halc

ocite

,lim

onite

, mal

achi

te, b

arite

, qua

rtz,

azur

ite, c

hrys

ocol

la

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

256

SALT

AZ-

27Le

onor

, Mar

ta, M

erce

des

Cap

illas

24ﾟ2

9'59

"66

ﾟ01'

35"

Cu

Sim

ple

vein

sM

arth

a; C

u:2%

,A

g:5g

/tPr

ecam

bria

nSh

ales

, sla

tes,

phyl

lites

and

quar

tzite

sPu

ncov

isca

na F

orm

atio

n

257

SALT

AZ-

27Lu

crec

itaLa

s Cue

vas

24ﾟ1

6'31

"66

ﾟ04'

04"

Cu

Sim

ple

vein

s ass

ocia

ted

with

plu

tons

chal

copy

rite,

bor

nite

, cha

lcoc

ite,

limon

ite, m

alac

hite

, bar

ite, q

uartz

,az

urite

, chr

ysoc

olla

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

258

SALT

AZ-

27M

ilagr

oA

cay

24ﾟ2

7'38

"66

ﾟ12'

01"

Fe(-

Cu-

Pb-Z

n)Sk

arn,

vei

nlet

s, ba

nded

,m

etas

omat

icm

agne

tite,

pyr

ite, c

halc

opyr

ite, c

alci

te,

enst

atite

, qua

rtzC

reta

ceou

s, O

ligoc

ene

Gar

netif

erou

s ska

rn, L

imes

tone

,C

alca

reou

s san

dsto

ne, M

arl,

Gra

nite

Yac

orai

te F

orm

atio

nA

cay

Form

atio

n

259

SALT

AZ-

27N

evad

o de

Aca

y (A

rea

de R

eser

vaN

o.18

)A

cay

24ﾟ2

8'66

ﾟ10'

Cu-

Pb-Z

nD

isse

min

ated

pyrit

ePr

ecam

bria

n, C

reta

ceou

s,Te

rtiar

yM

etas

edim

ents

, Con

glom

erat

esan

d sa

ndst

ones

. Dac

itic

and

rhyo

daci

tic in

trusi

ves.

Punc

ovis

cana

For

mat

ion,

Pirg

uaSu

bgro

up

260

SALT

AZ-

27O

rgan

ullo

Org

anul

lo24

ﾟ16'

66ﾟ2

1'A

uPo

rphy

ry A

u, e

pith

erm

algo

ldTe

rtiar

yD

aciti

c an

d an

desi

tic fl

ows.

Dio

ritic

stoc

k26

1SA

LTA

Z-27

Org

anul

lo (J

ulio

Ver

ne)

Org

anul

lo24

ﾟ23'

41.9

"66

ﾟ19'

04"

Au-

Bi-C

u-Pb

-Zn

Poly

met

allic

vei

nspy

rite,

tetra

hedr

ite, g

old,

bis

mut

hini

te,

chal

copy

rite,

spha

lerit

e, g

alen

a, q

uartz

Prec

ambr

ian,

Ter

tiary

Slat

es a

nd sc

hist

s. D

aciti

c an

dan

desi

tic fl

ows.

Dio

ritic

stoc

kPu

ncov

isca

na F

orm

atio

n

262

SALT

AZ-

27Pu

eblo

Vie

joPa

lerm

o O

este

(La

Pom

a)24

ﾟ42'

23"

66ﾟ1

1'45

"A

uA

lluvi

al g

old

gold

Qua

tern

ary

Sand

Terr

ace

sedi

men

ts

263

SALT

AZ-

27R

osar

ioA

cay

24ﾟ3

0'14

"66

ﾟ12'

11"

Cu

Epith

erm

al p

olym

etal

licsp

hale

rite,

gal

ena,

pyr

ite, c

halc

opyr

ite,

tetra

hedr

itePr

ecam

bria

nM

etas

edim

ents

Punc

ovis

cana

For

mat

ion

264

SALT

AZ-

27Sa

turn

oA

cay

24ﾟ2

8'41

"66

ﾟ10'

14"

Cu-

Ag-

Au

Epith

erm

al p

olym

etal

licch

alco

pyrit

e, p

yrite

, gol

d, g

alen

a,sp

hale

rite

Cu:

0.9-

18%

, Ag:

300-

1,57

2g/t

Prec

ambr

ian

Met

ased

imen

tsPu

ncov

isca

na F

orm

atio

n

265

SALT

AZ-

27Se

ñor d

el M

ilagr

oLa

s Cue

vas

24ﾟ2

3'18

"66

ﾟ01'

18"

Cu

Sim

ple

vein

s ass

ocia

ted

with

plu

tons

chal

copy

rite,

bor

nite

, cha

lcoc

ite,

limon

ite, m

alac

hite

, bar

ite, q

uartz

,az

urite

, chr

ysoc

olla

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

266

SALT

AZ-

27So

r Raf

aela

Las C

ueva

s24

ﾟ20'

07"

66ﾟ0

4'12

"C

uSi

mpl

e ve

ins a

ssoc

iate

dw

ith p

luto

nsch

alco

pyrit

e, b

orni

te, c

halc

ocite

,lim

onite

, mal

achi

te, b

arite

, qua

rtz,

azur

ite, c

hrys

ocol

la

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

267

SALT

AZ-

27To

rca

Org

anul

lo24

ﾟ25'

53"

66ﾟ1

9'33

"Pb

-Ag-

Cu

Epith

erm

al p

olym

etal

lic,

vein

s in

faul

tsga

lena

, cha

lcop

yrite

, mal

achi

teTe

rtiar

y (P

lioce

ne)

And

esite

sR

umib

ola

Form

atio

n

268

SALT

AZ-

27V

irgen

del

Car

men

Las C

ueva

s24

ﾟ20'

59"

66ﾟ0

1'29

"C

uSi

mpl

e ve

ins a

ssoc

iate

dw

ith p

luto

nsch

alco

pyrit

e, b

orni

te, c

halc

ocite

,lim

onite

, mal

achi

te, b

arite

, qua

rtz,

azur

ite, c

hrys

ocol

la

Prec

ambr

ian

Shal

es, s

late

s, ph

yllit

es a

ndqu

artz

ites

Punc

ovis

cana

For

mat

ion

269

SALT

AZ-

28Pa

ncho

Aria

s, V

izca

cher

alFi

nca

El T

oro

(San

Ber

nard

o de

las Z

orra

s)24

ﾟ15'

29.1

"65

ﾟ50'

40.8

"M

o-C

u-A

uPo

rphy

ry C

u-M

o,hy

drot

herm

al b

recc

iapy

rite,

cha

lcop

yrite

, mol

ybde

nite

,qu

artz

, tou

rmal

ine

In su

rface

;C

u:<3

,300

ppm

,M

o:<7

50pp

m,

Au:

<0.2

g/t

Prec

ambr

ian,

Mio

cene

Lept

omet

amor

phic

rock

s, D

aciti

cpo

rphy

ry d

ikes

swar

m a

ndin

trusi

ve a

nd h

ydro

ther

mal

brec

cias

Punc

ovis

cana

For

mat

ion

270

SALT

AZ-

29C

arah

uasi

Sije

s24

ﾟ47'

44"

66ﾟ3

9'03

"B

orat

esEv

apor

iteul

exite

B2O

3:13.

08%

Plei

stoc

ene

- Hol

ocen

eU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Evap

oriti

c D

epos

its

271

SALT

AZ-

29C

hinc

hilla

sSi

jes

24ﾟ5

6'06

"66

ﾟ45'

18"

Bor

ates

Evap

orite

ulex

itePl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

272

SALT

AZ-

29Es

para

nza

Sije

s24

ﾟ40'

25"

66ﾟ3

9'18

"B

orat

esFo

ssil

evap

orite

cole

man

ite, h

ydro

bara

cite

, iny

oite

B2O

3:28%

100,

000t

Mio

cene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Sije

s For

mat

ion

273

SALT

AZ-

29M

onte

Azu

lSi

jes

24ﾟ4

1'42

"66

ﾟ40'

31"

Bor

ates

Foss

il ev

apor

iteco

lem

anite

, hyd

roba

raci

te, i

nyoi

teM

ioce

neU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Sije

s For

mat

ion

274

SALT

AZ-

29M

onte

Gris

Sije

s24

ﾟ45'

16"

66ﾟ4

0'42

"B

orat

esFo

ssil

evap

orite

cole

man

ite, h

ydro

bara

cite

, iny

oite

Mio

cene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Sije

s For

mat

ion

275

SALT

AZ-

29M

onte

Mar

rón

Sije

s24

ﾟ46'

23"

66ﾟ4

1'44

"B

orat

esFo

ssil

evap

orite

cole

man

ite, h

ydro

bara

cite

, iny

oite

Mio

cene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Sije

s For

mat

ion

276

SALT

AZ-

29M

onte

Ver

deSi

jes

24ﾟ4

3'24

"66

ﾟ40'

33"

Bor

ates

Foss

il ev

apor

iteco

lem

anite

, hyd

roba

raci

te, i

nyoi

teM

ioce

neU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Sije

s For

mat

ion

277

SALT

AZ-

29Pa

mpa

Cié

naga

, Pur

mam

arca

Sije

s24

ﾟ57'

01"

66ﾟ4

4'14

"B

orat

esEv

apor

iteul

exite

B2O

3:<32

%(P

urm

amar

ca)

324,

000t

Plei

stoc

ene

- Hol

ocen

eU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Evap

oriti

c D

epos

its

278

SALT

AZ-

29Sa

n G

abrie

lSi

jes

24ﾟ4

9'13

"66

ﾟ40'

17"

Bor

ates

Evap

orite

ulex

itePl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

279

SALT

AZ-

30A

egyr

, La

Pich

unga

, Odi

n, T

hor

Sala

r de

Dia

blill

os25

ﾟ14'

40"

66ﾟ4

5'20

"B

orat

esEv

apor

iteul

exite

Plei

stoc

ene

- Hol

ocen

eU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Evap

oriti

c D

epos

its

280

SALT

AZ-

30C

oral

, Ent

rerr

iana

, Esc

orpi

o, S

urSa

lar d

e D

iabl

illos

25ﾟ1

5'35

"66

ﾟ43'

20"

Bor

ates

Evap

orite

ulex

iteB

2O3:3

4.47

% (f

or th

esa

lar)

2.25

Mt

(infe

rred

, for

all

the

sala

r)Pl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

281

SALT

AZ-

30H

ipól

ito, M

aria

Lui

saSa

lar d

e R

aton

es25

ﾟ08'

00"

66ﾟ4

7'10

"B

orat

esEv

apor

iteul

exite

ulex

ite:1

.2 M

t(e

stim

ated

rese

rves

for

who

le b

asin

)

Plei

stoc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

282

SALT

AZ-

30Ju

lián,

Mar

itaSa

lar d

e R

aton

es25

ﾟ09'

00"

66ﾟ4

7'30

"B

orat

esEv

apor

iteul

exite

Hol

ocen

eU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Evap

oriti

c D

epos

its

7 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t28

3SA

LTA

Z-30

La D

espr

ecia

da, L

a Pe

rdid

a,Sa

ntia

goSa

lar d

e D

iabl

illos

25ﾟ1

5'50

"66

ﾟ45'

35"

Bor

ates

Evap

orite

ulex

itePl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

284

SALT

AZ-

30Pa

scua

l, V

icto

r Fel

ipe

Sala

r de

Dia

blill

os25

ﾟ15'

25"

66ﾟ4

4'30

"B

orat

esEv

apor

iteul

exite

Plei

stoc

ene

- Hol

ocen

eU

pper

filli

ng o

f sal

t dep

osit.

Inte

rcal

atio

n of

salin

e an

d fin

ede

trita

l bed

s.

Evap

oriti

c D

epos

its

285

SALT

AZ-

30Sa

n Fe

lipe,

San

Mar

celo

, Tos

caSa

lar d

e D

iabl

illos

25ﾟ1

4'20

"66

ﾟ44'

10"

Bor

ates

Evap

orite

ulex

itePl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

286

SALT

AZ-

30Sa

n Ju

an, S

an P

ablo

, San

Ped

ro,

Sant

o D

omin

goSa

lar d

e D

iabl

illos

25ﾟ1

5'35

"66

ﾟ44'

25"

Bor

ates

Evap

orite

ulex

itePl

eist

ocen

e - H

oloc

ene

Upp

er fi

lling

of s

alt d

epos

it.In

terc

alat

ion

of sa

line

and

fine

detri

tal b

eds.

Evap

oriti

c D

epos

its

287

SALT

AZ-

31D

iabl

illos

Sala

r de

Dia

blill

os25

ﾟ18'

24"

66ﾟ4

8'29

"A

u-C

uH

igh

sulfi

datio

n,ep

ither

mal

gol

d, P

orph

yry

Mio

cene

Gra

nitic

intru

sive

s, in

trusi

vebr

ecci

asIn

ca V

iejo

For

mat

ion

288

SALT

AZ-

31In

ca V

iejo

(inc

luye

42

perte

nenc

ias)

Abr

a de

Min

as25

ﾟ07'

01.5

"66

ﾟ46'

33.1

"A

u-(C

u-M

o)Po

rphy

ry A

u-C

ulim

onite

, pyr

ite, c

halc

opyr

ite,

mol

ybde

nite

, mal

achi

te, a

zurit

e,ch

ryso

colla

, tur

quoi

se

In su

rfac

e; C

u:18

0ppm

,M

o:25

ppm

Terti

ary

(Mio

cene

)M

onzo

nitic

and

dac

itic

porp

hyrie

s. In

trusiv

e an

d co

llaps

eto

urm

alin

e-be

arin

g br

ecci

as

Inca

Vie

jo F

orm

atio

n

289

SALT

AZ-

31So

roch

e, V

ulca

noA

bra

de M

inas

(Inc

a25

ﾟ07'

15"

66ﾟ4

4'55

"Pb

-Ag-

ZnO

rdov

icia

nG

neis

ses,

schi

sts,

gran

odio

rites

Oire

Eru

ptiv

e C

ompl

ex29

0SA

LTA

Z-32

Abr

a de

Cue

rnos

Tacu

il25

ﾟ32'

40"

66ﾟ4

2'45

"Si

llim

anite

Nod

ules

, ven

as,

met

amor

phic

alum

inos

ilica

te m

iner

als,

quar

tzPr

ecam

bria

nSc

hist

, Bio

tite-

gnei

ss, Q

uartz

ose

mic

a sc

hist

Pach

amam

a Ig

neo-

Met

amor

phic

Com

plex

291

SALT

AZ-

32Be

rilo

I, II,

III y

IVC

erro

Inca

huas

i25

ﾟ18'

45"

66ﾟ3

3'15

"B

e-m

ica

Pegm

atite

quar

tz, m

icro

clin

e, b

iotit

e, m

usco

vite

,be

ryl,

garn

et, t

ourm

alin

ePr

ecam

bria

nB

iotit

e sc

hist

, Bio

tite

gnei

ssR

ío B

lanc

o M

etam

orph

ic C

ompl

ex

292

SALT

AZ-

32C

asa

Gra

nde,

Las

Junt

asTa

cuil

25ﾟ3

0'03

"66

ﾟ38'

05"

Silli

man

iteN

odul

es, v

enas

,m

etam

orph

ical

umin

osili

cate

min

eral

s, qu

artz

Prec

ambr

ian

Schi

st, B

iotit

e-gn

eiss

, Qua

rtzos

em

ica

schi

stPa

cham

ama

Igne

o-M

etam

orph

icC

ompl

ex29

3SA

LTA

Z-32

Cer

ro B

lanc

oTa

cuil

25ﾟ3

3'25

"66

ﾟ42'

12"

Be

Silli

man

iteN

odul

es, v

enas

,m

etam

orph

ical

umin

osili

cate

min

eral

s, qu

artz

Al 2O

3:58-

60%

600t

(in

dica

ted)

Prec

ambr

ian

Schi

st, B

iotit

e-gn

eiss

, Qua

rtzos

em

ica

schi

stPa

cham

ama

Igne

o-M

etam

orph

icC

ompl

ex29

4SA

LTA

Z-32

Cer

ro B

lanc

o, O

lga

Tacu

il25

ﾟ34'

50"

66ﾟ4

2'50

"B

e-m

ica

Pegm

atite

Prec

ambr

ian

Bio

tite

schi

st, B

iotit

e gn

eiss

Río

Bla

nco

Met

amor

phic

Com

plex

295

SALT

AZ-

32C

erro

Gua

yita

s, C

ueva

de

Fune

sTa

cuil

25ﾟ3

0'05

"66

ﾟ41'

56"

Silli

man

iteN

odul

es, v

enas

,m

etam

orph

ical

umin

osili

cate

min

eral

s, qu

artz

Prec

ambr

ian

Schi

st, B

iotit

e-gn

eiss

, Qua

rtzos

em

ica

schi

stPa

cham

ama

Igne

o-M

etam

orph

icC

ompl

ex29

6SA

LTA

Z-32

Cha

co H

uasi

Tacu

il25

ﾟ30'

50"

66ﾟ3

9'22

"Si

llim

anite

Nod

ules

, ven

as,

met

amor

phic

alum

inos

ilica

te m

iner

als,

quar

tzPr

ecam

bria

nSc

hist

, Bio

tite-

gnei

ss, Q

uartz

ose

mic

a sc

hist

Pach

amam

a Ig

neo-

Met

amor

phic

Com

plex

297

SALT

AZ-

32El

Tol

doTa

cuil

25ﾟ2

9'45

"66

ﾟ42'

15"

Be-

mic

aPe

gmat

itequ

artz

, mic

rocl

ine,

bio

tite,

mus

covi

te,

bery

l, ga

rnet

, tou

rmal

ine

Prec

ambr

ian

Bio

tite

schi

st, B

iotit

e gn

eiss

Río

Bla

nco

Met

amor

phic

Com

plex

298

SALT

AZ-

32Pa

trici

aC

erro

Inca

huas

i25

ﾟ17'

15"

66ﾟ3

3'18

"B

e-m

ica

Pegm

atite

quar

tz, m

icro

clin

e, b

iotit

e, m

usco

vite

,be

ryl,

garn

et, t

ourm

alin

ePr

ecam

bria

nB

iotit

e sc

hist

, Bio

tite

gnei

ssR

ío B

lanc

o M

etam

orph

ic C

ompl

ex

299

SALT

AZ-

32Pu

esto

Exc

ursi

oner

aTa

cuil

25ﾟ2

8'00

"66

ﾟ42'

40"

Silli

man

iteN

odul

es y

ven

as y

tam

bien

com

o ro

dado

s ent

erra

zas y

fald

eos

alum

inos

ilica

te m

iner

als,

quar

tzPr

ecam

bria

nSc

hist

, Bio

tite-

gnei

ss, Q

uartz

ose

mic

a sc

hist

Pach

amam

a Ig

neo-

Met

amor

phic

Com

plex

300

SALT

AZ-

33A

guas

Cal

ient

esSi

erra

de

Cac

hi24

ﾟ44'

41"

66ﾟ2

0'31

"N

b-Ta

-Li-B

i-Be

Pegm

atiti

cni

obite

, tan

talit

e, m

icro

lite,

bis

mut

h,bi

smut

hini

te, l

epid

olite

, spo

dum

ene

5Mt (

for t

he d

istri

ct)

Prec

ambr

ian

- Low

er C

ambr

ian

Slat

e, S

chis

t, Ph

yllit

e,Tr

ondh

jem

ite P

luto

n, P

egm

atite

Punc

ovis

cana

For

mat

ion,

Cac

hiFo

rmat

ion

301

SALT

AZ-

33A

nzot

ana

Sier

ra d

e C

achi

24ﾟ4

9'66

ﾟ18'

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

n - L

ower

Cam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Tron

dhje

mite

Plu

ton,

Peg

mat

itePu

ncov

isca

na F

orm

atio

n, C

achi

Form

atio

n30

2SA

LTA

Z-33

El P

eñón

El Q

uem

ado

24ﾟ5

0'23

"66

ﾟ19'

29"

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

n - L

ower

Cam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Tron

dhje

mite

Plu

ton,

Peg

mat

itePu

ncov

isca

na F

orm

atio

n, C

achi

Form

atio

n30

3SA

LTA

Z-33

El Q

uem

ado

El Q

uem

ado

24ﾟ5

0'42

"66

ﾟ21'

11"

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

n - L

ower

Cam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Tron

dhje

mite

Plu

ton,

Peg

mat

itePu

ncov

isca

na F

orm

atio

n, C

achi

Form

atio

n30

4SA

LTA

Z-33

Elvi

rita

El Q

uem

ado

24ﾟ4

5'27

"66

ﾟ20'

32"

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

n - L

ower

Cam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Tron

dhje

mite

Plu

ton,

Peg

mat

itePu

ncov

isca

na F

orm

atio

n, C

achi

Form

atio

n30

5SA

LTA

Z-33

Mar

ía E

ugen

ia, M

aría

Isab

elC

achi

25ﾟ0

4'05

"66

ﾟ17'

00"

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Gre

ywac

keLa

Pay

a Fo

rmat

ion

306

SALT

AZ-

33Pe

ñas B

lanc

asEl

Que

mad

o24

ﾟ57'

38"

66ﾟ1

8'29

"N

b-Ta

-Li-B

i-Be

Pegm

atiti

cni

obite

, tan

talit

e, m

icro

lite,

bis

mut

h,bi

smut

hini

te, l

epid

olite

, spo

dum

ene

5Mt (

for t

he d

istri

ct)

Prec

ambr

ian

- Low

er C

ambr

ian

Slat

e, S

chis

t, Ph

yllit

e,Tr

ondh

jem

ite P

luto

n, P

egm

atite

Punc

ovis

cana

For

mat

ion,

Cac

hiFo

rmat

ion

307

SALT

AZ-

33Sa

nta

Elen

aEl

Que

mad

o24

ﾟ49'

30"

66ﾟ2

0'31

"N

b-Ta

-Li-B

i-Be

Pegm

atiti

cni

obite

, tan

talit

e, m

icro

lite,

bis

mut

h,bi

smut

hini

te, l

epid

olite

, spo

dum

ene

Ta3O

5+N

b 2O

5:0.0

1-0.

035%

5Mt (

for t

he d

istri

ct)

Prec

ambr

ian

- Low

er C

ambr

ian

Slat

e, S

chis

t, Ph

yllit

e,Tr

ondh

jem

ite P

luto

n, P

egm

atite

Punc

ovis

cana

For

mat

ion,

Cac

hiFo

rmat

ion

308

SALT

AZ-

33Tr

es T

etas

El Q

uem

ado

24ﾟ5

3'06

"66

ﾟ18'

03"

Nb-

Ta-L

i-Bi-B

ePe

gmat

itic

niob

ite, t

anta

lite,

mic

rolit

e, b

ism

uth,

bism

uthi

nite

, lep

idol

ite, s

podu

men

e5M

t (fo

r the

dis

trict

)Pr

ecam

bria

n - L

ower

Cam

bria

nSl

ate,

Sch

ist,

Phyl

lite,

Tron

dhje

mite

Plu

ton,

Peg

mat

itePu

ncov

isca

na F

orm

atio

n, C

achi

Form

atio

n30

9SA

LTA

Z-34

Bre

alito

(A. d

e R

. n° 2

4)B

real

ito25

ﾟ18'

02"

66ﾟ2

0'35

"C

uPr

ecam

bria

n, C

reta

ceou

sM

etas

edim

ents

, Por

phyr

itic

body

Punc

ovis

cana

For

mat

ion

310

SALT

AZ-

34El

Mon

teB

real

ito25

ﾟ21'

55"

66ﾟ2

3'10

"C

uSt

rata

boun

d C

um

alac

hite

, azu

rite

Cre

tace

ous

Sand

ston

es a

nd p

elite

sPi

rgua

Sub

grou

p31

1SA

LTA

Z-34

Emm

a O

lga

Cac

hi25

ﾟ08'

66ﾟ2

4'Pb

simpl

e ve

ins

Prec

ambr

ian

Slat

es, s

chis

ts, p

hylli

tes.

Gra

nite

sLa

Pay

a Fo

rmat

ion,

Cac

hi F

orm

atio

n31

2SA

LTA

Z-34

Inca

uca

Cer

ro In

cauc

a (C

achi

)25

ﾟ09'

58"

66ﾟ2

4'00

"Pb

-Ag

simpl

e ve

ins

Cre

tace

ous

Con

glom

erat

es a

nd sa

nsto

nes

Pirg

ua S

ubgr

oup

313

SALT

AZ-

34M

agda

lena

Am

enca

y, S

antia

guito

La P

aya

25ﾟ1

1'08

"66

ﾟ14'

40"

PbV

eins

Prec

ambr

ian

Slat

es, s

chis

ts, p

hylli

tes

La P

aya

Form

atio

n31

4SA

LTA

Z-34

San

Ant

onio

Lura

cata

o25

ﾟ15'

03"

66ﾟ2

4'00

"Pb

-Ag

Vei

nsPr

ecam

bria

nSl

ates

, sch

ists

, phy

llite

sLa

Pay

a Fo

rmat

ion

315

SALT

AZ-

34Sa

nta

Julia

Cac

hi25

ﾟ13'

25"

66ﾟ1

6'15

"Pb

-Ag

Vei

nsPr

ecam

bria

nSl

ates

, sch

ists

, phy

llite

sLa

Pay

a Fo

rmat

ion

316

SALT

AZ-

34Ti

ti O

rco

Secl

antá

s25

ﾟ14'

25"

66ﾟ1

4'00

"Pb

Vei

nsPr

ecam

bria

nSl

ates

, sch

ists

, phy

llite

sLa

Pay

a Fo

rmat

ion

317

SALT

AZ-

35D

on B

osco

Cac

hi25

ﾟ06'

12"

66ﾟ0

0'50

"U

-VSt

rata

boun

d, T

abul

arC

reta

ceou

sM

icac

eous

cal

care

ous s

ands

tone

,O

oliti

c lim

esto

ne, S

andy

Yac

orai

te F

orm

atio

n

318

SALT

AZ-

36D

on O

ttoQ

uebr

ada

de O

veje

ría25

ﾟ38'

65ﾟ5

4'U

-VSt

rata

boun

d, T

abul

arau

tuni

ta, m

etaa

utun

ita, c

arno

tita,

tyoy

amon

itaU

:1.0

5‰ (a

vera

ge o

fth

e di

stric

t)V

2O5:0

.02-

0.24

%

584,

709t

(tota

l of t

he d

istri

ct)

Cre

tace

ous

Mic

aceo

us c

alca

reou

s san

dsto

ne,

Ool

itic

limes

tone

, San

dylim

esto

ne

Yac

orai

te F

orm

atio

n

319

SALT

AZ-

36Lo

s Ber

thos

Que

brad

a de

Ove

jería

25ﾟ2

4'65

ﾟ57'

U-V

Stra

tabo

und,

Tab

ular

fojfo

uran

iuta

, ura

nofa

no, p

itchb

lend

eU

:1.4

4‰ (a

vera

ge),

V2O

5:0.4

0-0.

64%

Cre

tace

ous

Mic

aceo

us c

alca

reou

s san

dsto

ne,

Ool

itic

limes

tone

, San

dyY

acor

aite

For

mat

ion

320

SALT

AZ-

36M

.M. D

e G

uem

esQ

uebr

ada

de O

veje

ría25

ﾟ22'

65ﾟ5

8'U

-VSt

rata

boun

d, T

abul

arV

2O5:0

.20%

Cre

tace

ous

Mic

aceo

us c

alca

reou

s san

dsto

ne,

Ool

itic

limes

tone

, San

dyY

acor

aite

For

mat

ion

321

SALT

AZ-

36Pe

dro

Nic

olás

Que

brad

a de

Ove

jería

25ﾟ3

0'65

ﾟ57'

U-V

Stra

tabo

und,

Tab

ular

V2O

5:0.0

1%C

reta

ceou

sM

icac

eous

cal

care

ous s

ands

tone

,O

oliti

c lim

esto

ne, S

andy

Yac

orai

te F

orm

atio

n

322

SALT

AZ-

37Em

my,

El L

eñad

ero,

El D

esec

hoSi

erra

Alis

ar25

ﾟ41'

65ﾟ3

0'U

-VSt

rata

boun

d, T

abul

arU

:0.0

8-1.

36‰

(El L

eñad

ero)

, U

:0.0

3‰ (E

lD

esec

ho)

Cre

tace

ous

Mic

aceo

us c

alca

reou

s san

dsto

ne,

Ool

itic

limes

tone

, San

dylim

esto

ne

Yac

orai

te F

orm

atio

n

8 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t32

3SA

LTA

Z-37

La D

espe

dida

Sier

ra A

lisar

25ﾟ5

4'65

ﾟ30'

USt

rata

boun

d, T

abul

ar4.

86M

t with

1,7

00t o

fU

3O8

Cre

tace

ous

Mic

aceo

us c

alca

reou

s san

dsto

ne,

Ool

itic

limes

tone

, San

dyY

acor

aite

For

mat

ion

324

SALT

AZ-

38C

asua

lidad

lll

Caf

ayat

e26

ﾟ01'

66ﾟ1

1'C

uV

eins

Prec

ambr

ian

Met

amor

phic

rock

sTo

lom

bón

Met

amor

phic

Com

plex

325

SALT

AZ-

38Lo

s Car

done

sV

alle

cito

　(F

inca

Puc

ara)

25ﾟ5

6'10

"66

ﾟ10'

40"

Cu

Vei

nsPr

ecam

bria

nSc

hist

s, sl

ates

and

gre

ywac

kes

Punc

ovis

cana

For

mat

ion

326

SALT

AZ-

38V

alle

cito

(A. d

e R

. n° 2

5) (m

ina

San

Fran

cisc

o I y

II)

Val

leci

to　

(Fin

ca P

ucar

a)25

ﾟ55'

50"

66ﾟ1

7'05

"C

uSt

rata

boun

d C

uC

u:0.

05-1

%O

rdov

icia

n, C

reta

ceou

sM

igm

atite

s, gr

anite

s.C

ongl

omer

ates

, san

dsto

nes

Oire

Eru

ptiv

e C

ompl

ex, P

irgua

Subg

roup

327

CA

TAM

AR

CA

Z-39

Lang

una

del S

alitr

eLa

guna

Apa

rom

a26

ﾟ14'

66°5

3'Pb

-Zn

Vei

nM

ioce

neM

onzo

dior

iteSa

litre

For

mat

ion

328

SALT

AZ-

39M

arga

rita,

Zor

riquí

nLa

Yes

era

25ﾟ5

8'66

ﾟ41'

Cu

Stra

tabo

und

Cu

mal

achi

te, a

zurit

eC

reta

ceou

sSa

ndsto

nes a

nd c

ongl

omer

ates

Pirg

ua S

ubgr

oup

329

SALT

AZ-

39Tr

es M

orrit

osC

afay

ate

26ﾟ1

2'66

°46'

Cu

Stra

tabo

und

mal

achi

te, a

zurit

eM

ioce

ne -

Plio

cene

Con

tinen

tal p

eliti

c, sa

ndy

and

cong

lom

erat

e le

vels

Payo

gast

illa

Gro

up

330

CA

TAM

AR

CA

Z-40

El Y

ocav

ilSi

erra

de

Los P

atos

Gra

ndes

26ﾟ3

7'66

°05'

Mus

covi

tePe

gmat

itic

and

lent

icul

arU

pper

Pre

cam

bria

nG

neis

s, Sc

hist

Tolo

mbó

n Fo

rmat

ion

(Pis

coya

cuG

neiss

)33

1C

ATA

MA

RC

AZ-

40M

aría

Ars

enita

, San

Alfr

edo

Sier

ra d

e Lo

s Pat

osG

rand

es26

ﾟ27'

66°0

8'K

aolin

ePe

gmat

itic,

Tab

ular

Upp

er P

reca

mbr

ian

- Low

erC

arbo

nife

rous

Schi

st, G

rani

teLa

Céb

ila F

orm

atio

n, E

l Man

chao

Plut

on33

2SA

LTA

Z-40

17 d

e O

ctub

reSi

erra

de

Los P

atos

Gra

ndes

26ﾟ0

8'66

ﾟ07'

Mic

aPe

gmat

itequ

artz

, mic

rocl

ine,

bio

tite,

mus

covi

te,

bery

l, to

urm

alin

ePr

ecam

bria

nSc

hist

, Gne

iss,

Qua

rtzite

Tolo

mbó

n M

etam

orph

ic C

ompl

ex

333

SALT

AZ-

40La

Vie

jaSi

erra

de

Los P

atos

Gra

ndes

26ﾟ1

3'66

°06'

Mic

aPe

gmat

itequ

artz

, mic

rocl

ine,

bio

tite,

mus

covi

te,

bery

l, to

urm

alin

ePr

ecam

bria

nSc

hist

, Gne

iss,

Qua

rtzite

Tolo

mbó

n M

etam

orph

ic C

ompl

ex

334

TUC

UM

AN

Z-40

Don

Six

to, T

intil

lo y

otra

sSi

erra

de

Los P

atos

Gra

ndes

26ﾟ2

9'66

°06'

Mic

aPe

gmat

itic

and

lent

icul

ar2t

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

itePi

scoy

acu

Form

atio

n

335

TUC

UM

AN

Z-40

Gra

ciel

a (e

x M

ilagr

o), A

leja

ndra

,V

icto

r Hug

o, F

acun

do, C

ueva

de

Baz

án, A

lto C

azad

ero

I, II,

III,

IV

Sier

ra d

e Lo

s Pat

osG

rand

es26

ﾟ22'

66°0

5'M

ica

Pegm

atiti

c, L

entic

ular

790t

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

itePi

scoy

acu

Form

atio

n

336

TUC

UM

AN

Z-40

Tala

pazo

I,II

,III,I

V, L

a Pl

egad

a,La

s Cañ

as a

nd o

ther

sSi

erra

de

Los P

atos

Gra

ndes

26ﾟ2

7'66

°04'

Mic

aPe

gmat

itic

and

lent

icul

ar85

0tU

pper

Pre

cam

bria

nG

neis

s, M

igm

atite

Pisc

oyac

u Fo

rmat

ion

337

TUC

UM

AN

Z-40

Julia

naSi

erra

de

Los P

atos

Gra

ndes

26ﾟ2

3'66

°03'

Be

Pegm

atiti

c, L

entic

ular

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

itePi

scoy

acu

Gne

iss

338

TUC

UM

AN

Z-40

Las C

añas

Sier

ra d

e Lo

s Pat

osG

rand

es26

ﾟ21'

66°0

7'B

ePe

gmat

iteU

pper

Pre

cam

bria

nG

neis

s, M

igm

atite

Pisc

oyac

u G

neis

s

339

TUC

UM

AN

Z-41

Las C

anas

(ex

La R

osa)

Sier

ra d

e Lo

s Pat

osG

rand

es26

ﾟ21'

66°0

7'C

u-Pb

-Zn-

Au

Diss

emin

ated

Cu:

1%, A

u:1.

5-2.

6g/t

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

itePi

scoy

acu

Gne

iss

340

TUC

UM

AN

Z-41

Paña

s Col

orad

as (e

x. S

an C

arlit

os)

Sier

ra d

e Lo

s Pat

osG

rand

es26

ﾟ26'

66°0

1'C

u-A

u-Pb

-Zn

Diss

emin

ated

Cu:

0.8%

, Au:

1.5-

2.5g

/tU

pper

Pre

cam

bria

nG

neis

s, M

igm

atite

Pisc

oyac

u G

neiss

341

CA

TAM

AR

CA

Z-42

And

réｓ

Cer

ro M

edan

o B

lanc

o26

ﾟ56'

66°5

6'Pb

Vei

nU

pper

Mio

cene

Bre

ccia

La H

oyad

a Fo

rmat

ion

342

CA

TAM

AR

CA

Z-42

Cue

vas N

egra

sC

erro

Med

ano

Bla

nco

26ﾟ5

6'66

°56'

Pb-A

g-C

uV

ein

Cu:

0.07

%, P

b:1.

75%

,A

g:29

1g/t

(roc

k ch

ips)

Upp

er M

ioce

neB

recc

iaLa

Hoy

ada

Form

atio

n

343

CA

TAM

AR

CA

Z-42

Cul

anpa

jaC

erro

Med

ano

Bla

nco

27ﾟ0

2'66

°58'

Au-

(W)

344

CA

TAM

AR

CA

Z-42

Don

Ciri

loC

erro

Med

ano

Bla

nco

26ﾟ5

5'66

°51'

Pb-A

gV

ein

Ag:

65g/

tU

pper

Cam

bria

n - L

ower

Ord

ovic

ian

Schi

st, P

hylli

te, S

late

,Li

mes

tone

, Gra

nite

Gru

po

345

CA

TAM

AR

CA

Z-42

Don

a M

artin

a, L

a M

arco

s, La

Pila

r, La

Tom

asita

, La

Zara

goza

na, L

a R

osal

ía, C

óndo

r

Cer

ro M

edan

o B

lanc

o26

ﾟ55'

66°5

1'Pb

-Ag

Vei

nU

pper

Cam

bria

n - L

ower

Ord

ovic

ian

Schi

st, P

hylli

te, S

late

,Li

mes

tone

, Gra

nite

Cac

hiñá

n G

roup

(par

cial

)

346

CA

TAM

AR

CA

Z-42

El A

rago

nés,

Don

Enr

ique

, Pie

dra

Cal

zada

Cer

ro M

edan

o B

lanc

o26

ﾟ58'

66°5

2'W

-Sn

Vei

nU

pper

Cam

bria

n - L

ower

Ord

ovic

ian

Schi

st, P

hylli

te, S

late

Cac

hiñá

n G

roup

(par

cial

)

347

CA

TAM

AR

CA

Z-42

El M

orad

ito, G

utié

rrez

, Taj

oLa

rgo,

El I

ngen

io, E

l Ros

ario

Cul

ampa

já26

º56'

00"

66º5

6'30

"A

uV

ein

gold

, pyr

ite, c

halc

opyr

ite, s

phal

erite

,ar

seno

pyrit

e, m

alac

hite

, azu

rite,

Fe-

oxid

e, q

uartz

Au:

10.2

g/t,

Ag:

2g/t

Upp

er O

rdov

icia

n - S

iluria

nG

rani

teC

hang

o R

eal F

orm

atio

n

348

CA

TAM

AR

CA

Z-42

Euse

bio

Cer

ro M

edan

o B

lanc

o26

ﾟ56'

66°5

6'Pb

Vei

nU

pper

Mio

cene

And

esite

La H

oyad

a Fo

rmat

ion

349

CA

TAM

AR

CA

Z-42

Gra

natit

a, L

a C

uest

aC

erro

Med

ano

Bla

nco

26ﾟ5

7'66

°50'

Gar

net

Lent

iform

Ord

ovic

ian

Cry

stal

line

limes

tone

, Met

a-se

dim

ents

Cac

hiñá

n G

roup

(par

cial

)

350

CA

TAM

AR

CA

Z-42

Gut

iérr

ez, T

ajo

Larg

o, E

l In

geni

o,El

Ros

ario

Cer

ro M

edan

o B

lanc

o26

ﾟ58'

66°5

8'A

uV

ein

Upp

er O

rdov

icia

n - S

iluria

nG

rani

tic o

rthog

neis

sC

hang

o R

eal F

orm

atio

n

351

CA

TAM

AR

CA

Z-42

La A

rgen

tina

Cer

ro M

edan

o B

lanc

o26

ﾟ55'

66°5

1'Pb

-Ag

Vei

nA

g:12

9g/t

Upp

er C

ambr

ian

- Low

erO

rdov

icia

nSc

hist

, Phy

llite

, Sla

te,

Lim

esto

ne, G

rani

teC

achi

ñán

Gro

up (p

arci

al)

352

CA

TAM

AR

CA

Z-42

La C

obriz

a, O

jo d

e A

gua

Cer

ro M

edan

o B

lanc

o26

º54'

30"

66º5

1'00

"C

uSk

arn

cha

lcop

yrite

, pyr

ite, C

u-ox

ide

Cu:

12-1

3%U

pper

Cam

bria

n - L

ower

Ord

ovic

ian

Schi

sts a

nd L

imes

tone

sC

achi

ñán

Gro

up (p

arci

al)

353

CA

TAM

AR

CA

Z-42

La P

reci

osa

Arg

entin

aC

erro

Med

ano

Bla

nco

26ﾟ5

7'66

°50'

Topa

zTa

bula

rO

rdov

icia

nM

etas

edim

ents

Cac

hiñá

n G

roup

(par

cial

)

354

CA

TAM

AR

CA

Z-42

Mar

ía M

agda

lena

Cer

ro M

edan

o B

lanc

o26

ﾟ56'

66°5

6'Pb

-Cu

Vei

nU

pper

Mio

cene

And

esite

La H

oyad

a Fo

rmat

ion

355

CA

TAM

AR

CA

Z-42

Neg

ra D

orad

aC

erro

Med

ano

Bla

nco

26ﾟ5

5'66

°51'

Pb-A

gV

ein

Pb:6

%, Z

n:2%

, Ag:

70-

377g

/tU

pper

Cam

bria

n - L

ower

Ord

ovic

ian

Schi

st, P

hylli

te, S

late

,Li

mes

tone

, Gra

nite

Cac

hiñá

n G

roup

(par

cial

)

356

CA

TAM

AR

CA

Z-42

Pied

ra C

alza

daC

erro

Med

ano

Bla

nco

26ﾟ4

8'66

°51'

Cu-

Bi-P

b-Zn

-WPe

gmat

itic,

Tab

ular

Upp

er C

ambr

ian

- Low

erO

rdov

icia

nSc

hist

, Sla

te, P

hylli

teC

achi

ñán

Gro

up (p

arci

al)

357

CA

TAM

AR

CA

Z-42

San

Isid

ro, L

a B

anda

(Gru

po L

aM

esad

a)C

erro

Med

ano

Bla

nco

26ﾟ5

8'66

°56'

WV

ein

Upp

er C

ambr

ian

- Low

erO

rdov

icia

nSl

ate,

Phy

llite

Cac

hiñá

n G

roup

(par

cial

)

358

CA

TAM

AR

CA

Z-42

Tibu

rcio

, El E

nrej

ado

Cer

ro M

edan

o B

lanc

o26

ﾟ57'

66°5

0'Fl

uorit

eTa

bula

r bod

yO

rdov

icia

nC

hang

o R

eal F

orm

atio

n, C

achi

ñán

Gro

up (p

arci

al)

359

CA

TAM

AR

CA

Z-42

Vac

a V

izca

naC

erro

Med

ano

Bla

nco

26º4

7'30

"66

º49'

30"

Cu

- Au

Porp

hyry

Cu

pyrit

e, c

halc

opyr

ite, b

orni

te, g

old,

nat

ive

copp

er, b

orni

te, p

yrrh

otite

, rut

ile,

mag

netit

e, m

alac

hite

, azu

rite,

cov

ellit

e,lim

onite

Mio

cene

, Upp

er O

rdov

icia

n -

Silu

rian

Intru

sives

, And

esiti

c po

rphy

rydi

kes a

nd G

rani

teEl

Asp

ero

Form

atio

n, C

hang

o R

eal

Form

atio

n

360

CA

TAM

AR

CA

Z-43

Agu

a R

ica

(ex

Mi V

ida)

Fara

lｌón

Neg

ro27

º22'

00"

66º1

7'30

"C

u-M

o-Pb

-Zn-

Ag-

Au

Porp

hyry

Cu,

Hig

hsu

lfida

tion

epith

erm

alpy

rite,

cov

ellit

e. b

orni

te, e

narg

ite,

mol

ybde

nite

, gal

ena,

spha

lerit

e,m

arca

site

, rho

doch

rosi

te, s

ulfu

r

Cu:

0.61

%, A

u:0.

24g/

t,A

g:3.

17g/

t, M

o:0.

035%

802M

t (ge

olog

ical

)U

pper

Mio

cene

Igne

ous b

recc

ia, h

ydro

ther

mal

brec

cias

Can

udo

Bre

ccia

361

CA

TAM

AR

CA

Z-43

Agu

a Ta

pada

Agu

a de

Dio

nisi

o27

º15'

30"

66º4

1'15

"A

uEp

ither

mal

, low

sulfi

datio

ngo

ld b

earin

g py

rite,

cha

lcop

yrite

,ga

lena

, sph

aler

ite, q

uartz

, cal

cite

, bar

iteA

u:2.

2g/t,

Ag:

174g

/tU

pper

Mio

cene

And

esiti

c br

ecci

as a

nd Q

uartz

ande

site

sFa

ralｌó

n N

egro

Vol

cani

c C

ompl

ex

362

CA

TAM

AR

CA

Z-43

Alto

de

la B

lend

aA

gua

de D

ioni

sio

27º1

8'30

"66

º39'

30"

Au-

Ag-

Mn

Epith

erm

al, l

ow su

lfida

tion

nativ

e go

ld, a

rgen

tite,

pol

ybas

ite,

tetra

hedr

ite, g

alen

a, sp

hale

rite,

chal

copy

rite,

pyr

ite, b

orni

te, M

n-ca

rbon

ate,

qua

rtz, c

alci

te, p

yrol

usite

,ps

ilom

elan

e

Au:

4g/t,

Ag:

70g/

t74

5,00

0t, 1

,834

t(a

vera

ge)

Upp

er M

ioce

neM

onzo

nite

and

And

esite

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

363

CA

TAM

AR

CA

Z-43

Baj

o de

Agu

a Ta

pada

Fara

lｌón

Neg

ro27

ﾟ16'

66°3

9'C

u-A

u

364

CA

TAM

AR

CA

Z-43

Baj

o de

la A

lum

brer

aA

gua

de D

ioni

sio

27º1

9'00

"66

º37'

30"

Cu-

Au

Porp

hyry

Cu

pyrit

e, c

halc

opyr

ite, m

agne

tite,

hem

atite

, spe

cula

r iro

n, m

olyb

deni

te,

born

ite, s

phal

erite

, cov

ellit

e, m

arca

site

Cu:

0.52

%,

Au:

0.67

g/t(P

roba

ble)

;C

u:0.

52%

, Au:

0.58

g/t

(Pos

sible

)

550,

680,

000t

(Pro

babl

e);

114,

410,

000t

(Pos

sibl

e)

Upp

er M

ioce

neA

ndes

itic

brec

cia,

And

esiti

c tu

ff,

And

esiti

c di

kes a

nd si

lls, Q

uartz

ande

sitic

stoc

k an

d di

kes

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

365

CA

TAM

AR

CA

Z-43

Baj

o de

San

Luc

asFa

ralｌó

n N

egro

27ﾟ2

4'66

°33'

Cu-

(Au-

Mo)

366

CA

TAM

AR

CA

Z-43

Baj

o El

Dur

azno

Agu

a de

Dio

nisi

o27

º17'

13"

66º3

4'25

"C

u-A

uPo

rphy

ry C

upy

rite,

cha

lcop

yrite

, gol

d, m

olyb

deni

te,

mag

netit

e, g

alen

a, b

orni

te, a

zurit

eC

u:0.

12%

, Au:

0.32

g/t

2,00

0,00

0t (E

stim

ated

)U

pper

Mio

cene

Rhy

odac

itic

stoc

kFa

ralｌó

n N

egro

Vol

cani

c C

ompl

ex

367

CA

TAM

AR

CA

Z-43

Baj

o La

s Jun

tas

Fara

lｌón

Neg

ro27

º26'

30"

66º3

2'00

"C

u-A

uPo

rphy

ry C

upy

rite,

cha

lcop

yrite

, gol

d, m

alac

hite

,m

agne

tite,

cov

ellit

eU

pper

Mio

cene

And

esite

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

368

CA

TAM

AR

CA

Z-43

Baj

o La

s Pam

plita

sA

gua

de D

ioni

sio

27º1

9'00

"66

º39'

00"

Au-

Ag

Porp

hyry

Cu

pyr

ite, g

alen

a, m

agne

tite,

bor

nite

, Mn-

oxid

esC

u:1,

100p

pmC

u:2,

150p

pmU

pper

Mio

cene

Rhy

odac

ite, b

recc

ia p

ipe

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

369

CA

TAM

AR

CA

Z-43

Baj

o Sa

n Lu

cas

Agu

a de

Dio

nisi

o27

º24'

00"

66º3

3'00

"C

u-A

uPo

rphy

ry C

u p

yrite

, cha

lcop

yrite

, mol

ybde

nite

,m

agne

tite

Cu:

0.26

-0.0

6%,

Au:

0.35

-0.1

4g/t

Upp

er M

ioce

neD

aciti

c an

d di

oriti

c po

rphy

ries

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

370

CA

TAM

AR

CA

Z-43

Car

men

Fara

lｌón

Neg

ro27

ﾟ19'

66°2

9'A

u-A

g-(W

)

371

CA

TAM

AR

CA

Z-43

Car

mel

itas,

Orti

zFa

ralｌó

n N

egro

27ﾟ2

0'66

°23'

Rho

doch

rosi

te-

capi

llitit

eV

ein

5,39

3tU

pper

Mio

cene

Rhy

olite

, Tuf

f, V

olca

nic

brec

cia

Pach

amam

a Ig

neo-

Met

amor

phic

Com

plex

372

CA

TAM

AR

CA

Z-43

Cer

ro A

tajo

Fara

lｌón

Neg

ro27

ﾟ18'

66°2

9'A

u-(B

i-Cu)

9 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t37

3C

ATA

MA

RC

AZ-

43Fa

ralló

n N

egro

Agu

a de

Dio

nisi

o

27º1

8'00

"66

º39'

30"

Au-

Ag-

Mn

Epith

erm

al, l

ow su

lfida

tion

pyrit

e, sp

hale

rite,

cha

lcop

yrite

, gal

ena,

quar

tz, n

ativ

e go

ld, a

rgen

tite,

pol

ibas

ite,

teno

rite,

pyr

olus

ite, p

silo

mel

ane,

cal

cite

,M

n- c

arbo

nate

Upp

er M

ioce

ne A

ndes

itic

brec

cias

and

Mon

zoni

te

374

CA

TAM

AR

CA

Z-43

Filo

Col

orad

oFa

ralｌó

n N

egro

27ﾟ3

3'66

°13'

Cu-

Au-

Mo

Porp

hyry

Cu

gold

bea

ring

pyrit

e, c

halc

opyr

ite,

mol

ybde

nite

, cha

lcoc

ite, b

orni

te,

Cu:

0.3-

0.5%

, Au:

0.3g

/t,M

o:20

0ppm

9,00

0,00

0t (P

ossi

ble)

Ord

ovic

ian,

Upp

er M

ioce

neG

rani

te, D

oler

ite a

nd D

acite

sC

anud

o B

recc

ia

375

CA

TAM

AR

CA

Z-43

Gru

po C

apill

itas　

(Ros

ario

,C

apill

itas,

Res

taur

ador

a, V

eta

9,La

Gra

nde,

Orti

z, L

uisi

ta a

nd

Fara

lｌón

Neg

ro27

ﾟ20'

66°2

3'C

u-A

u-Pb

-Zn-

Ag

Dis

sem

inat

ed, v

einl

ets,

fillin

g, m

assi

ve, c

him

ney

and

vein

Cu:

2.32

%, P

b:1.

62%

,A

u:2.

66g/

t, A

g:10

8g/t

(gra

des o

f 3 v

eins

)

387,

000t

(mea

sure

d),

675,

000t

(inf

erre

d)U

pper

Mio

cene

Vol

cani

c br

ecci

a, R

hyol

ite, T

uff

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

376

CA

TAM

AR

CA

Z-43

La G

rand

e, O

rtiz,

Lui

sita

and

othe

rsC

apill

itas

27º2

0'00

"66

º22'

30"

Cu-

Pb-A

u-A

g-R

hodo

chro

site

Poly

met

allic

pyrit

e, e

narg

ite, t

enna

ntite

, cha

lcop

yrite

,ch

alco

cite

, sph

aler

ite, g

alen

a, m

arca

site

,go

ld, a

rsen

opyr

ite, g

alen

a, b

ism

utite

,di

geni

te, i

daite

, qua

rtz, r

hodo

chro

site

,ca

lcite

, bar

ite

Cu:

2.32

%, A

u:2.

6g/t,

Ag:

108g

/t (g

rade

s of 3

vein

s)

387,

000t

(ind

icat

ed),

675,

000t

(inf

erre

d)rh

odoc

hros

ite is

not

cons

ider

ed.

Upp

er M

ioce

ne V

olca

nic

brec

cia

377

CA

TAM

AR

CA

Z-43

La Jo

sefa

Agu

a de

Dio

nisi

o27

ﾟ19'

66°3

8'C

uEp

ither

mal

, low

sulfi

datio

nch

alco

pyrit

e, p

yrite

, Fe-

oxid

es, b

orni

te,

gale

na, s

phal

erite

, car

bona

tes,

gyps

um,

quar

tz

Au:

4-5g

/t, A

g:7-

11g/

tU

pper

Mio

cene

And

esiti

c br

ecci

as a

ndA

ndes

ites

Fara

lｌón

Neg

ro V

olca

nic

Com

plex

378

CA

TAM

AR

CA

Z-43

Las J

unta

sC

erro

Ata

jo27

º18'

30"

66º2

8'30

"C

uPo

lym

etal

licpy

rite,

cha

lcop

yrite

, sph

aler

ite, e

narg

ite,

chal

coci

te,q

uartz

, gal

ena

Cu:

0.2%

14M

tU

pper

Mio

cene

And

esite

, Bre

ccia

, Tuf

fs

379

CA

TAM

AR

CA

Z-43

Los V

iscos

Agu

a de

Dio

nisi

o27

ﾟ18'

66°4

0'A

u-A

g-M

nEp

ither

mal

, low

sulfi

datio

nca

rbon

ate,

qua

rtzA

u:13

.75g

/t, A

g:11

4g/t

Upp

er M

ioce

neA

ndes

ite a

nd A

ndes

itic

brec

cias

Far

alló

n N

egro

Vol

cani

c G

roup

380

CA

TAM

AR

CA

Z-43

Mac

ho M

uerto

Agu

a de

Dio

nisi

o27

ﾟ18'

66°4

0'A

u-A

g-M

nEp

ither

mal

, low

sulfi

datio

npy

rite,

spha

lerit

e, c

halc

opyr

ite, g

alen

a,qu

artz

, gol

d, a

rgen

tite,

pol

ybas

ite,

teno

rite,

pyr

olus

ite, p

silo

mel

ane

Au:

<1g/

tU

pper

Mio

cene

And

esiti

c an

d rh

yoda

citic

brec

cias

Far

alló

n N

egro

Vol

cani

c G

roup

381

CA

TAM

AR

CA

Z-43

Mor

ro B

ola

Agu

a de

Dio

nisi

oA

u-A

gEp

ither

mal

Mn-

oxid

es, q

uartz

, car

bona

teU

pper

Mio

cene

And

esite

382

CA

TAM

AR

CA

Z-43

Sant

o D

omin

goA

gua

de D

ioni

sio

27ﾟ1

8'66

°40'

Au

Epith

erm

al, l

ow su

lfida

tion

gold

bea

ring

pyrit

e, F

e-ox

ides

, Mn-

oxid

es, p

yrite

, qua

rtz, g

ypsu

mU

pper

Mio

cene

And

esiti

c br

ecci

as F

aral

lón

Neg

ro V

olca

nic

Gro

up

383

CA

TAM

AR

CA

Z-43

Sect

o A

tajo

Cer

ro A

tajo

27º1

8'30

"66

º28'

30"

Cu-

Au

Porp

hyry

Cu-

Au

pyrit

e, h

emat

ite, c

halc

ocite

,ch

alco

pyrit

e, g

old

Cu:

0.15

%70

Mt

Upp

er M

ioce

neD

aciti

c po

rphy

ry

384

CA

TAM

AR

CA

Z-43

Sect

or C

arm

enC

erro

Ata

jo

27º1

8'30

"66

º28'

30"

Au-

Ag-

WEp

ither

mal

wol

fram

ite, n

ativ

e go

ld, g

old

bear

ing

pyrit

e, A

g-su

lfide

s, sp

hale

rite,

chal

copy

rite,

pyr

ite, M

n-ox

ides

, qua

rtz,

rhod

ochr

osite

Au:

25g/

t, A

g:42

.7g/

t,W

:1.8

kg/t

25,7

00t (

Prob

able

)U

pper

Mio

cene

And

esiti

c tu

ffs,

daci

tic p

orph

yry

Far

alló

n N

egro

Vol

cani

c G

roup

385

CA

TAM

AR

CA

Z-43

Sect

or M

aria

Eug

enia

Cer

ro A

tajo

27º1

8'30

"66

º28'

30"

Cu-

Pb-Z

n-A

u-A

gPo

lym

etal

licna

tive

gold

, pyr

ite, c

halc

opyr

ite,

tetra

hedr

ite, t

enna

ntite

, cha

lcoc

ite,

spha

lerit

e, e

narg

ite

Cu:

9%, A

u:1.

8g/t,

Ag:

90g/

t15

0,00

0t (P

roba

ble)

Upp

er M

ioce

ne A

ndes

itic

brec

cias

and

Dac

itic

tuffs

Far

alló

n N

egro

Vol

cani

c G

roup

386

CA

TAM

AR

CA

Z-43

Sect

or S

alto

Mor

ado

- San

Ant

onio

Cer

ro A

tajo

27º1

8'30

"66

º28'

30"

Cu-

Au-

Ag

Epith

erm

alpy

rite,

cha

lcop

yrite

, gol

d, q

uartz

Cu:

0.4-

0.5%

Salto

Mor

ado:

<20,

000

tU

pper

Mio

cene

And

esite

, Bre

ccia

, Tuf

fs F

aral

lón

Neg

ro V

olca

nic

Gro

up

387

CA

TAM

AR

CA

Z-43

Sect

or T

riunf

oC

erro

Ata

jo27

º18'

30"

66º2

8'30

"C

u-A

g-A

uPo

lym

etal

licpy

rite,

cha

lcop

yrite

, ena

rgite

, sph

aler

ite,

chal

coci

te, q

uartz

, rho

doch

rosi

teC

u:5%

, Au:

1.4g

/t,A

g:75

g/t

18,7

48t (

Prob

able

)U

pper

Mio

cene

Pyro

clas

tic a

ndes

ite F

aral

lón

Neg

ro V

olca

nic

Gro

up

388

CA

TAM

AR

CA

Z-44

And

acol

laB

elén

27ﾟ5

0'67

°27'

W-(S

b-M

o)

389

CA

TAM

AR

CA

Z-44

Del

Val

leB

elén

27ﾟ3

7'67

°04'

W-(

Bi)

390

CA

TAM

AR

CA

Z-44

Del

Val

le, G

loria

, La

Cue

stio

nada

(Gru

po D

el V

alle

)B

elén

27ﾟ3

8'67

°05'

WV

ein/

pasa

je a

pegm

atoi

deW

O3:4

%1.

12M

t (in

ferr

ed)

Prec

ambr

ian

- Low

er C

ambr

ian

Slat

e, P

hylli

teC

apill

itas G

rani

te

391

CA

TAM

AR

CA

Z-44

El P

rogr

eso

Arg

entin

o an

d ot

hers

Bel

én27

ﾟ37'

67°1

9'Sn

392

CA

TAM

AR

CA

Z-44

Las C

ham

pas (

Gru

po E

l Fr

aile

)B

elén

27ﾟ3

8'67

°20'

SnV

ein

Upp

er P

reca

mbr

ian

- Upp

erO

rdov

icia

n - S

iluria

nSc

hist

, Gra

nite

Fam

abal

asto

For

mat

ion,

Cha

ngo

Rea

lFo

rmat

ion

393

CA

TAM

AR

CA

Z-44

Las P

ircas

Bel

én27

ﾟ53'

67°2

8'Sn

Vei

nU

pper

Pre

cam

bria

n -

Car

boni

fero

usG

rani

te, G

rani

te p

orph

yry,

Sch

ist

Fam

abal

asto

For

mat

ion,

Los

Rat

ones

Plut

on39

4C

ATA

MA

RC

AZ-

44Po

rven

ir A

rgen

tino,

San

Nic

olás

,Sa

nta

Mar

ta, C

amel

a, L

a N

ieve

and

othe

rs (G

rupo

El F

raile

)

Bel

én27

ﾟ40'

67°2

0'Sn

Vei

nU

pper

Pre

cam

bria

n - U

pper

Ord

ovic

ian

- Silu

rian

Gra

nite

, Sch

ist

Fam

abal

asto

For

mat

ion,

Cha

ngo

Rea

lFo

rmat

ion

10 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t39

5C

ATA

MA

RC

AZ-

44Pr

ogre

so A

rgen

tino

(Gru

po E

lFr

aile

)B

elén

27ﾟ3

8'67

°19'

SnV

ein

Upp

er P

reca

mbr

ian

- Upp

erO

rdov

icia

n - S

iluria

nSc

hist

, Gra

nite

Fam

abal

asto

For

mat

ion,

Cha

ngo

Rea

lFo

rmat

ion

396

CA

TAM

AR

CA

Z-44

San

Ant

onio

, San

ta D

elia

, Tre

ce(G

rupo

San

Ant

onio

)B

elén

27ﾟ4

9'67

°13'

WV

ein

WO

3:4%

4,05

0t (i

ndic

ated

); 96

6t(in

ferr

ed)

Upp

er D

evon

ian

Gra

nite

San

Ant

onio

Plu

ton

397

CA

TAM

AR

CA

Z-44

San

Cris

tóba

lB

elén

27ﾟ4

6'67

°19'

SnV

ein

Upp

er O

rdov

icia

n - S

iluria

nG

rani

teC

hang

o R

eal F

orm

atio

n

398

CA

TAM

AR

CA

Z-44

San

Pedr

o, S

an F

elip

e, H

erná

nC

orté

zB

elén

27ﾟ5

3'67

°28'

SnG

uias

Upp

er P

reca

mbr

ian

Schi

st, G

neis

sFa

mab

alas

to F

orm

atio

n, C

hang

o R

eal

Form

atio

n39

9C

ATA

MA

RC

AZ-

44Sa

n R

amon

and

oth

ers

Bel

én27

ﾟ42'

67°1

5'Sn

Vei

n/O

re p

ocke

tsU

pper

Ord

ovic

ian

- Silu

rian

Gra

nite

, Ada

mel

lite

Cha

ngo

Rea

l For

mat

ion

400

CA

TAM

AR

CA

Z-44

Vil

Ach

ayB

elén

27ﾟ5

3'67

°28'

SnFi

lling

Sn:0

.9-1

.38%

25,7

30t (

infe

rred

);11

5,93

0t (i

ndic

ated

)U

pper

Cam

bria

n - L

ower

Ord

ovic

ian,

Car

boni

fera

sG

rani

te, G

abbr

o-no

rite

Gra

nito

VII

Ach

ay C

ompl

ejo

Nor

ític

oFi

amba

lá40

1TU

CU

MA

NZ-

46El

Alis

alEl

Alis

ar26

ﾟ50'

18"

65ﾟ3

4'40

"C

u- A

uPo

rphy

ry C

uch

alco

pyrit

e, p

yrite

, sph

aler

ite,

mag

netit

e, p

yrrh

otite

, hem

atite

,m

olyb

deni

te, t

enor

ite, C

u-ox

ides

Cu:

49-

820p

pm, P

b:44

ppm

, Au:

75-1

85pp

bO

rdov

icia

n / M

ioce

neA

ndes

itic

porp

hyry

, and

esite

s,br

ecci

asM

ala

Mal

a G

rano

dior

ite

402

TUC

UM

AN

Z-47

El P

ago

27ﾟ0

5'65

°54'

Cu-

Au-

Pb-Z

nD

issem

inat

edpy

rite,

cha

lcop

yrite

, sph

aler

ite,g

alen

aU

pper

Pre

cam

bria

nG

neis

s, M

igm

atite

Pisc

oyac

u G

neis

s

403

CA

TAM

AR

CA

Out

of

zone

sM

orro

Bla

nco

26ﾟ5

6'66

°49'

Cry

stal

line

limes

tone

Tabu

lar

Ord

ovic

ian

Met

ased

imen

tsC

achi

ñán

Gro

up (p

arci

al)

404

CA

TAM

AR

CA

Out

of

zone

sV

isvi

l27

ﾟ28'

66°3

0'Fe

Vei

n-fo

rmFe

:59.

20 %

800,

000t

(ind

icat

ed)

Prec

ambr

ian

- Cam

bria

nG

reyw

acke

, Pel

itic

rock

Sunc

ho F

orm

atio

n

405

CA

TAM

AR

CA

Out

of

zone

sEl

Vas

quito

and

oth

ers

27ﾟ3

0'65

°52'

Mn

406

CA

TAM

AR

CA

Out

of

zone

sA

gua

de L

as P

alom

as, L

a C

hilc

a,Sa

n Es

quiú

27ﾟ3

7'66

°30'

Mus

covi

tePe

gmat

itic

Prec

ambr

ian

Gne

iss,

Mig

mat

ite, I

njec

ted

schi

stG

neiss

del

Sun

cho

Form

atio

n

407

CA

TAM

AR

CA

Out

of

zone

sSu

da M

iner

al27

ﾟ42'

66°0

3'M

usco

vite

Pegm

atiti

c, L

entic

ular

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

ite, I

njec

ted

schi

stG

neiss

del

Sun

cho

Form

atio

n

408

JUJU

YO

ut o

fzo

nes

Tafn

a an

d ot

hers

22ﾟ0

5'65

ﾟ45'

Mn

Vei

nlet

s, Im

preg

natio

n,Le

ntic

ular

pyro

lusi

te, p

silo

mel

ane

Qua

tern

ary

Sand

ston

e, C

ongl

omer

ate,

Tuf

fTa

fna

Form

atio

n

409

JUJU

YO

ut o

fzo

nes

Yur

aj, L

a M

erce

d, F

irj, L

a Lu

cha

Tafn

a22

ﾟ06'

42"

65ﾟ4

4'57

"K

aolin

eM

antif

orm

, Len

ticul

arA

l 2O3:2

2%, F

e 2O

3:4.6

%1.

23M

t (m

easu

red)

;46

7,56

7t (i

ndic

ated

);35

5,18

2t (i

nfer

red)

Plei

stoc

ene

Tuff

, Con

glom

erat

e, S

andy

cong

lom

erat

eTa

fna

Form

atio

n

410

JUJU

YO

ut o

fzo

nes

Cas

abla

nca

I, II

y III

, Mar

itaTa

fna

22ﾟ0

7'41

"65

ﾟ44'

05"

Mn

Vei

nlet

s, Im

preg

natio

n,Le

ntic

ular

pyro

lusi

te, p

silo

mel

ane

Qua

tern

ary

Sand

ston

e, C

ongl

omer

ate,

Tuf

fTa

fna

Form

atio

n

411

JUJU

YO

ut o

fzo

nes

Silv

ana

Luis

aTa

fna

22ﾟ0

7'41

"65

ﾟ44'

05"

Mn

Vei

nlet

s, Im

preg

natio

n,Le

ntic

ular

pyro

lusi

te, p

silo

mel

ane

Mn:

10-1

5%35

0,00

0t(m

easu

red+

infe

rred)

Qua

tern

ary

Sand

ston

e, C

ongl

omer

ate,

Tuf

fTa

fna

Form

atio

n

412

JUJU

YO

ut o

fzo

nes

Cab

allit

o B

lanc

oTa

fna

22ﾟ0

7'48

"65

ﾟ44'

45"

Kao

line

Man

tifor

m, L

entic

ular

Plei

stoc

ene

Tuff

, Con

glom

erat

e, S

andy

cong

lom

erat

eTa

fna

Form

atio

n

413

JUJU

YO

ut o

fzo

nes

Can

tera

Lec

ho, C

ante

ra 7

de

May

o, C

ante

ra E

xodo

Yav

i22

ﾟ08'

65ﾟ2

9'Li

mes

tone

-tra

verti

ne-o

nix

Stra

tifor

mC

reta

ceou

sO

oliti

c lim

esto

ne, M

arl,

Cal

care

ous s

ands

tone

Yac

orai

te F

orm

atio

n

414

JUJU

YO

ut o

fzo

nes

Can

tera

San

Fra

ncis

coY

avi

22ﾟ0

8'65

ﾟ29'

Lim

esto

ne-

trave

rtine

-oni

xSt

ratif

orm

limes

tone

, ool

ite, o

nix

Cre

tace

ous

Ool

itic

limes

tone

, Mar

l,C

alca

reou

s san

dsto

neY

acor

aite

For

mat

ion

415

JUJU

YO

ut o

fzo

nes

Can

tera

Gab

riel,

Can

tera

Elb

arY

avi

22ﾟ0

9'65

ﾟ30'

Lim

esto

ne-

trave

rtine

-oni

xSt

ratif

orm

limes

tone

, ool

ite, o

nix

Cre

tace

ous

Ool

itic

limes

tone

, Mar

l,C

alca

reou

s san

dsto

neY

acor

aite

For

mat

ion

416

JUJU

YO

ut o

fzo

nes

La C

asua

lidad

, La

Con

stan

zaEs

caya

22ﾟ1

2'06

"65

ﾟ44'

18"

FeV

ein-

form

Ord

ovic

ian

Dac

itic

and

rhyo

daci

tic p

orph

yry

Coc

hino

ca-E

scay

a C

ompl

ex

417

JUJU

YO

ut o

fzo

nes

Esqu

ina

Bla

nca

22ﾟ1

7'35

"65

ﾟ32'

06"

Dia

tom

iteLe

ntifo

rm, l

agun

ar50

% d

efr?

stul

os d

edi

atom

eas

Plei

stoc

ene

Sand

ston

e, M

icac

eous

sand

ston

e,Pe

litic

rock

s41

8JU

JUY

Out

of

zone

sB

ella

vist

a, L

a G

itana

, Pac

ham

ama

22ﾟ1

8'38

"65

ﾟ32'

10"

Kao

line

Man

tifor

m, L

entic

ular

Plei

stoc

ene

Tuff

, Con

glom

erat

e, S

andy

cong

lom

erat

eTa

fna

Form

atio

n

419

JUJU

YO

ut o

fzo

nes

Choc

oite

I, II

y II

IC

hoco

ite22

ﾟ22'

06"

65ﾟ4

6'25

"K

aolin

eSt

ratif

orm

Plei

stoc

ene

Tuff

, Con

glom

erat

e, S

andy

cong

lom

erat

eTa

fna

Form

atio

n

420

JUJU

YO

ut o

fzo

nes

Taca

naite

22ﾟ2

5'03

"65

ﾟ46'

52"

Kao

line

Man

tifor

m, L

entic

ular

Plei

stoc

ene

Tuff

, Con

glom

erat

e, S

andy

cong

lom

erat

eTa

fna

Form

atio

n

421

JUJU

YO

ut o

fzo

nes

Alu

mbr

e22

ﾟ30'

65ﾟ3

3'Sb

Vei

nO

rdov

icia

nG

rey

slat

e, Q

uartz

itic

sand

ston

eA

coite

For

mat

ion

422

JUJU

YO

ut o

fzo

nes

Can

tera

Bea

triz,

Can

tera

Pie

dra

Bla

nca

22ﾟ3

9'65

ﾟ36'

Lim

esto

neSt

ratif

orm

Cre

tace

ous

Ool

itic

limes

tone

, Mar

l,C

alca

reou

s san

dsto

neY

acor

aite

For

mat

ion

423

JUJU

YO

ut o

fzo

nes

El S

ombr

ero

Coc

hino

ca22

ﾟ42'

66ﾟ0

5'Fe

Hyd

roth

erm

alhe

mat

ite, l

imon

iteO

rdov

icia

n, T

ertia

ry, Q

uate

rnar

yLu

tite,

San

dsto

ne, V

olca

nite

Aco

ite F

orm

atio

n

424

JUJU

YO

ut o

fzo

nes

Peña

s Neg

ras

22ﾟ4

2'66

ﾟ06'

FeV

ein-

form

Ord

ovic

ian

Lutit

e, S

ands

tone

, Vol

cani

teA

coite

For

mat

ion

425

JUJU

YO

ut o

fzo

nes

Posi

tiva

22ﾟ4

2'04

"65

ﾟ59'

57"

Mn

Vei

nlet

s, Im

preg

natio

n,vo

lcan

noge

nic

sedi

men

tsps

ilom

elan

e, li

mon

iteO

rdov

icia

nSa

ndst

one,

Lut

ite, R

hyod

asiti

cpo

rphy

ryC

ochi

noca

-Esc

aya

Com

plex

426

JUJU

YO

ut o

fzo

nes

lral,

Pabe

llonc

ito22

ﾟ49'

66ﾟ0

1'M

nV

einl

ets,

Impr

egna

tion,

Lent

icul

ar, v

olca

nnog

enic

sedi

men

ts

psilo

mel

ane,

lim

onite

Upp

er M

ioce

neTu

ff b

recc

ia, A

ndes

iteD

once

llas F

orm

atio

n

427

JUJU

YO

ut o

fzo

nes

Que

ta22

ﾟ50'

66ﾟ0

0'M

nLe

nse,

vei

nlet

s, ce

men

ted,

volc

anno

geni

c se

dim

ents

psilo

mel

ane,

lim

onite

Plei

stoc

ene

Con

glom

erat

e, S

ands

tone

428

JUJU

YO

ut o

fzo

nes

San

José

, Don

cella

sD

once

llas

22ﾟ5

3'66

ﾟ02'

Mn

Vei

nlet

s, Im

preg

natio

n,Le

ntic

ular

, vol

cann

ogen

icse

dim

ents

psilo

mel

ane,

lim

onite

Upp

er M

ioce

neLa

va, A

ndes

itic

brec

cia

Vic

uñah

uasi

For

mat

ion

429

JUJU

YO

ut o

fzo

nes

Can

tera

Las

Ala

mos

Tres

Cru

ces

22ﾟ5

5'65

ﾟ35'

Lim

esto

neSt

ratif

orm

limes

tone

, ool

iteC

reta

ceou

sO

oliti

c lim

esto

ne, M

arl,

Cal

care

ous s

ands

tone

Yac

orai

te F

orm

atio

n

430

JUJU

YO

ut o

fzo

nes

Toim

ate

22ﾟ5

5'65

ﾟ50'

Mn

Vei

n/Im

preg

natio

nTe

rtiar

ySa

ndst

one,

Tuf

f, D

aciti

c tu

ffD

once

llas F

orm

atio

n

431

JUJU

YO

ut o

fzo

nes

Cor

ral B

lanc

oTr

es C

ruce

s22

ﾟ55'

43"

65ﾟ2

5'06

"B

arite

Vei

nsba

rite,

gal

ena

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Sant

a R

osita

For

mat

ion

432

JUJU

YO

ut o

fzo

nes

Can

tera

Cer

ro T

res T

orno

sTr

es C

ruce

s22

ﾟ56'

65ﾟ3

1'Li

mes

tone

Stra

tifor

mlim

esto

ne, o

olite

Cre

tace

ous

Ool

itic

limes

tone

, Mar

l,C

alca

reou

s san

dsto

neY

acor

aite

For

mat

ion

11 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t43

3JU

JUY

Out

of

zone

sC

ante

ra L

a C

ueva

Tres

Cru

ces

22ﾟ5

6'65

ﾟ23'

Lim

esto

neSt

ratif

orm

limes

tone

, ool

iteC

reta

ceou

sO

oliti

c lim

esto

ne, M

arl,

Cal

care

ous s

ands

tone

Yac

orai

te F

orm

atio

n

434

JUJU

YO

ut o

fzo

nes

Cas

ayoc

22ﾟ5

6'49

"65

ﾟ23'

52"

FeV

einl

ets/I

mpr

egna

tion

hem

atite

Cam

bria

nQ

uartz

iteC

halh

ualm

ayoc

For

mat

ion

435

JUJU

YO

ut o

fzo

nes

Can

tera

La

Cum

bre,

Can

tera

Elb

ar22

ﾟ59'

65ﾟ2

8'Li

mes

tone

Stra

tifor

mC

reta

ceou

sO

oliti

c lim

esto

ne, M

arl,

Cal

care

ous s

ands

tone

Yac

orai

te F

orm

atio

n

436

JUJU

YO

ut o

fzo

nes

Cer

rillo

s, Lu

isa

Stae

l22

ﾟ59'

27"

65ﾟ1

9'19

"Fe

Vei

nlet

s/Im

preg

natio

nhe

mat

iteC

ambr

ian

Qua

rtzite

Mes

ón G

roup

437

JUJU

YO

ut o

fzo

nes

Val

le G

rand

e23

° 34

'64

° 53

'Pb

-Ag-

ZnV

eins

Cre

tace

ous -

Ter

tiary

Cal

care

ous s

ands

tone

s,lim

esto

nes,

mar

lsB

albu

ena

Subg

roup

438

JUJU

YO

ut o

fzo

nes

Yac

orai

teR

ío Y

acor

aite

23ﾟ2

1'65

ﾟ24'

FeLe

ntifo

rm, M

assi

vehe

mat

iteC

ambr

ian,

Cre

tace

ous

Qua

rtzite

, San

dsto

neM

esón

Gro

up, Y

acor

aite

For

mat

ion

439

JUJU

YO

ut o

fzo

nes

Sant

a Ju

liaA

. Cas

tro T

olay

23ﾟ2

3'66

ﾟ02'

Pb-B

arite

Vei

nsga

lena

, qua

rtz, b

arite

97,4

80t (

tota

l)Ju

rass

ic -

Cre

tace

ous

Gra

nodi

orite

sC

astro

Tol

ay S

tock

440

JUJU

YO

ut o

fzo

nes

Can

tera

Cue

va d

el L

eón,

Can

tera

Cue

va d

el T

igre

, Can

tera

Sus

ques

Susq

ues

23ﾟ2

7'66

ﾟ18'

Trav

ertin

e-on

ixM

antif

orm

trave

rtine

5,20

0tO

rdov

icia

n, T

ertia

rySa

ndst

one,

Lut

ite, A

ndes

iteA

coite

For

mat

ion

441

JUJU

YO

ut o

fzo

nes

Can

tera

Juel

la, C

ante

ra A

mar

illa

Tilc

ara

23ﾟ3

1'65

ﾟ28'

Lim

esto

neSt

ratif

orm

limes

tone

, ool

iteC

reta

ceou

sO

oliti

c an

d st

rom

atol

itic

limes

tone

, Cal

care

ous l

imes

tone

Yac

orai

te F

orm

atio

n

442

JUJU

YO

ut o

fzo

nes

Can

tera

Mar

ía A

man

da, C

ante

raM

aría

Tilc

ara

23ﾟ3

5'65

ﾟ26'

Gyp

sum

(Ala

bast

er)

Evap

orite

alab

aste

r3,

778t

(inf

erre

d-in

dica

ted)

Upp

er C

reta

ceou

sSa

ndst

one,

Silt

ston

e, S

ilty

shal

eM

ealla

For

mat

ion

443

JUJU

YO

ut o

fzo

nes

Can

tera

Mai

mar

á, C

ante

raA

dria

na, C

ante

ra S

ilvia

, Can

tera

Mai

mar

á23

ﾟ37'

65ﾟ2

4'Li

mes

tone

Stra

tifor

mlim

esto

ne, o

olite

35.0

00 t

Cre

tace

ous

Ool

itic

and

stro

mat

oliti

clim

esto

ne, C

alca

reou

s lim

esto

neY

acor

aite

For

mat

ion

444

JUJU

YO

ut o

fzo

nes

Can

tera

Agu

a C

hica

Tum

baya

23ﾟ4

7'65

ﾟ30'

Dol

omite

Lent

iform

600.

000

tPr

ecam

bria

nD

olom

ite, S

late

, Sch

ist,

Vol

cani

cro

cks

Tum

baya

Mem

ber o

f Vol

can

Form

atio

n (P

unco

visc

ana

Form

atio

n)44

5JU

JUY

Out

of

zone

sSa

nta

Tere

sita

, San

ta M

aría

Tum

baya

23ﾟ4

7'65

ﾟ30'

Mn

Lent

icul

ar, I

mpr

egna

ctio

n,vo

lcan

noge

nic

sedi

men

tspy

rolu

site

, psi

lom

elan

e1,

500t

(ind

icat

ed)

Cam

bria

n, C

reta

ceou

sLu

tite,

Sla

te, Q

uartz

ite,

Lim

esto

ne, C

alca

reou

sM

esón

Gro

up, Y

acor

aite

For

mat

ion

446

JUJU

YO

ut o

fzo

nes

Tum

baya

Gra

nde

Tum

baya

23ﾟ4

8'65

ﾟ30'

Mn

Ore

poc

ket,

Impr

egna

tion

Mn:

18%

Cam

bria

n, C

reta

ceou

sLu

tite,

Sla

te, Q

uartz

ite,

Lim

esto

ne, C

alca

reou

sM

esón

Gro

up, Y

acor

aite

For

mat

ion

447

JUJU

YO

ut o

fzo

nes

Zona

del

Ram

al23

ﾟ50'

66ﾟ2

0'A

uA

lluvi

al g

old

gold

Fluv

ial s

edim

ents

Aco

ite F

orm

atio

n

448

JUJU

YO

ut o

fzo

nes

Can

tera

Vol

cán

(Bár

cena

)V

olcá

n23

ﾟ57'

65ﾟ2

6'C

ryst

allin

elim

esto

neSt

ratif

orm

limes

tone

Prec

ambr

ian

Met

amor

phos

ed li

mes

tone

(mic

rite

and

mic

rosp

arite

)V

olcá

n Fo

rmat

ion

(Pun

covi

scan

aFo

rmat

ion)

449

JUJU

YO

ut o

fzo

nes

Vic

toria

(Yun

gara

)Y

unga

ra23

º 33'

66º 3

0'Pb

-Ag-

ZnV

eins

gale

naU

pper

Cre

tace

ous -

Low

erTe

rtiar

ySa

ndsto

nes,

cong

lom

erat

es,

daci

tes

Pirg

ua S

ubgr

oup

450

JUJU

YO

ut o

fzo

nes

La B

etty

, Sol

de

Mañ

ana,

Mar

íaTe

resa

, La

Eva

24ﾟ0

2'55

"66

ﾟ29'

00"

Sulfu

r-gyp

sum

Solfa

tara

, Im

preg

natio

n,V

ein,

Cav

ity fi

lling

S:22

.6%

551.

000

tPl

ioce

ne -

Piei

stoc

ene

Tuff

Tuzg

le E

fusi

ve S

uite

451

JUJU

YO

ut o

fzo

nes

Tuzg

le24

ﾟ03'

66ﾟ2

9'Su

lfur-g

ypsu

mSo

lfata

ra, I

mpr

egna

tion,

Vei

n, C

avity

filli

ngPl

ioce

ne -

Piei

stoc

ene

Tuff

Tuzg

le E

fusi

ve S

uite

452

JUJU

YO

ut o

fzo

nes

León

24ﾟ0

3'65

ﾟ26'

Kao

line

Man

tifor

m, L

entic

ular

453

JUJU

YO

ut o

fzo

nes

La R

egal

ona

24ﾟ0

7'65

ﾟ12'

Kao

line

Man

tifor

m, L

entic

ular

454

JUJU

YO

ut o

fzo

nes

Toco

mar

24ﾟ1

1'65

ﾟ32'

Kao

line

Man

tifor

m, L

entic

ular

455

JUJU

YO

ut o

fzo

nes

Elec

tra, M

afal

da, M

arle

ta,

Pom

peya

, Ros

ana,

San

Ant

onio

,V

aler

ia, V

ivia

na

Sier

ra d

e C

hañi

24ﾟ2

0'65

ﾟ30'

Cu

Vei

nPr

ecam

bria

n - C

ambr

ian

Schi

sts,

slat

es a

nd q

uartz

ites

Sant

a R

osita

For

mat

ion

456

JUJU

YO

ut o

fzo

nes

El P

orve

nir

Cer

ro P

urm

a24

ﾟ20'

65ﾟ3

5'Pb

-Cu-

ZnEp

ither

mal

pol

ymet

allic

Pb: 7

.5%

, A

g: 1

25g/

t12

,000

tC

ambr

ian,

Ord

ovic

ian

Qua

rtzite

s, sa

ndst

ones

, sha

les

Mes

ón G

roup

, Aco

ite F

orm

atio

n

457

JUJU

YO

ut o

fzo

nes

Cla

udia

24ﾟ2

2'65

ﾟ24'

Kao

line

Man

tifor

m, L

entic

ular

458

JUJU

YO

ut o

fzo

nes

Vid

enci

aSa

n A

nton

io(C

erro

Neg

ro)

24ﾟ2

5'65

ﾟ27'

Bar

itePr

ecam

bria

nSl

ates

, sch

ists

and

phy

llite

sPu

ncov

isca

na F

orm

atio

n

459

JUJU

Y /

SALT

AO

ut o

fzo

nes

La N

oved

ad, V

olcá

n (T

ocan

te)

Río

Yac

orai

te23

ﾟ17'

65ﾟ2

9'Th

-Mn-

REE

-Pb

Vei

n, O

re p

ocke

ts,

Bre

ccia

ted

vein

gale

na, p

yrol

usite

ThO

2:0.5

1% (L

aN

oved

ad);

U3O

8:0.0

1%,

REE

:0.6

4%

Th:1

5t (g

eolo

gica

l)R

EE:2

0t (g

eolo

gica

l)O

rdov

icia

nLu

tite,

Qua

rtziti

c sa

ndst

one,

Bas

ic d

ikes

Aco

ite F

orm

atio

n

460

SALT

AO

ut o

fzo

nes

Río

Lip

eoLi

peo

22ﾟ2

8'34

"64

ﾟ39'

50"

Au

Acu

mul

acio

nes d

eco

nchi

llas d

e Li

ngul

asgo

ld

461

SALT

AO

ut o

fzo

nes

La S

ureñ

a23

ﾟ31'

66ﾟ1

6'Fe

Vei

n-fo

rmO

rdov

icia

nG

reyw

acke

, Lut

iteFa

lda

Cié

naga

For

mat

ion

462

SALT

AO

ut o

fzo

nes

Nue

va E

sper

anza

23ﾟ4

4'66

ﾟ19'

FeV

ein-

form

Ord

ovic

ian

Gre

ywac

ke, L

utite

Fald

a C

iéna

ga F

orm

atio

n

463

SALT

AO

ut o

fzo

nes

El M

ilagr

o, L

a C

alde

ra I,

II y

III

La C

alde

ra24

° 36'

65° 2

9'Pb

Vei

nsga

lena

, qua

rtzPr

ecam

bria

nSl

ates

, phy

llite

s, gr

eyw

acke

sPu

ncov

isca

na F

orm

atio

n

464

SALT

AO

ut o

fzo

nes

Ana

Mar

ía, E

steb

an24

ﾟ04'

29"

66ﾟ0

6'40

"M

nIm

preg

natio

n, V

ein,

Man

topy

rolu

site

, psi

lom

elan

eM

n:30

-44%

3,40

0tC

reta

ceou

s, Q

uate

rnar

yLi

mes

tone

, San

dsto

ne,

Con

glom

erat

eY

acor

aite

For

mat

ion,

Mod

ern

depo

sit

465

SALT

AO

ut o

fzo

nes

Orió

n24

ﾟ06'

66ﾟ1

3'K

aolin

e

466

SALT

AO

ut o

fzo

nes

El P

ato,

La

Pava

, Ant

a, C

ierv

o,G

uana

co, E

l Sur

i24

ﾟ08'

66ﾟ2

0'Pe

rlite

(Vol

cani

cgl

ass)

Irreg

ular

y str

atifo

rmed

body

Terti

ary

(Plio

cene

)R

hyol

itic

pyro

clas

tic d

epos

its,

ameb

oida

les l

ava

flow

467

SALT

AO

ut o

fzo

nes

El S

ol l

y ll

24ﾟ0

8'66

ﾟ20'

Perli

te (V

olca

nic

glas

s)Irr

egul

ary

strat

iform

edbo

dyTe

rtiar

y (P

lioce

ne)

Rhy

oliti

c py

rocl

astic

dep

osits

,am

eboi

dale

s lav

a flo

w46

8SA

LTA

Out

of

zone

sM

auric

e, Iv

ani,

Peca

, Mar

ía a

ndot

hers

Cer

ro P

urm

a24

ﾟ12'

65ﾟ5

3'B

arite

Vei

nsPr

ecam

bria

nSc

hist

s, sl

ates

and

gre

ywac

kes.

Gra

nite

sPu

ncov

isca

na F

orm

atio

n, T

astil

Form

atio

n46

9SA

LTA

Out

of

zone

sA

man

ta, T

rinid

ad24

ﾟ13'

66ﾟ1

5'K

aolin

e

470

SALT

AO

ut o

fzo

nes

Los P

atos

24ﾟ1

4'26

"66

ﾟ10'

57"

Pozz

olan

a7M

tTe

rtiar

y (P

lioce

ne)

Igni

mbr

ite, T

uff

Abr

a de

l Gal

lo F

orm

atio

n

471

SALT

AO

ut o

fzo

nes

Inca

chul

e (J

ulio

Ces

ar, V

icto

ria)

24ﾟ1

6'15

"66

ﾟ27'

34"

Mn

Fiss

ure

fillin

gpy

rolu

site

, psi

lom

elan

eTe

rtiar

y (M

ioce

ne)

And

esite

Rum

ibol

a Fo

rmat

ion

472

SALT

AO

ut o

fzo

nes

La E

scon

dida

El Q

ueva

24ﾟ1

9'15

"66

ﾟ51'

48"

PbV

ein

gale

naTe

rtiar

yD

aciti

c po

rphy

ry, T

uff,

Igni

mbr

iteA

gua

Cal

ient

e Fo

rmat

ion

12 /

13

Ser.

No.

Prov

ince

Zone

Nam

e of

min

eD

istri

ctLa

titud

eLo

ngitu

deEl

emen

tsT

ype

Min

eral

sG

rade

Res

ourc

esA

geLi

thol

ogy

Uni

t47

3SA

LTA

Out

of

zone

sSa

n Pe

dro,

Car

dona

lC

erro

Pur

ma

24ﾟ2

0'65

ﾟ42'

PbV

eins

gale

na, q

uartz

Ord

ovic

ian

Shal

es a

nd sa

ndst

ones

Aco

ite F

orm

atio

n

474

SALT

AO

ut o

fzo

nes

Inca

, Virg

en d

el R

osar

io24

ﾟ21'

65ﾟ5

4'Fe

Vei

n-fo

rm12

4.00

0t (i

nfer

red)

Prec

ambr

ian

Slat

e, S

chis

t, Q

uartz

ite,

Gra

nodi

orite

Punc

ovis

cana

For

mat

ion,

Que

sera

Form

atio

n47

5SA

LTA

Out

of

zone

sA

ries

24ﾟ2

1'65

ﾟ58'

Mn

volc

anno

geni

c se

dim

ents

pyro

lusi

te, p

silo

mel

ane

Qua

tern

ary

Con

glom

erat

e, S

ands

tone

with

trave

rtine

bed

sM

oder

n de

posi

ts

476

SALT

AO

ut o

fzo

nes

Virg

en d

el V

alle

, Jes

ús, S

an Jo

séLa

s Cue

vas

24ﾟ2

1'66

ﾟ01'

Mn

volc

anno

geni

c se

dim

ents

pyro

lusi

te, p

silo

mel

ane

Qua

tern

ary

Con

glom

erat

e, S

ands

tone

with

trave

rtine

bed

sM

oder

n de

posi

ts

477

SALT

AO

ut o

fzo

nes

Cle

opat

ra24

ﾟ22'

66ﾟ1

8'K

aolin

e

478

SALT

AO

ut o

fzo

nes

Trin

l24

ﾟ25'

66ﾟ2

3'Pe

rlite

(Vol

cani

cgl

ass)

Irreg

ular

y str

atifo

rmed

body

Terti

ary

(Plio

cene

)A

ndes

iteR

umib

ola

Form

atio

n

479

SALT

AO

ut o

fzo

nes

Cue

va R

eal

San

Ant

onio

de

los

Cob

res

24ﾟ2

6'66

ﾟ19'

Kao

line

480

SALT

AO

ut o

fzo

nes

Bor

do d

e la

Cue

va24

ﾟ26'

66ﾟ0

8'M

nM

antif

orm

,im

preg

natio

n,vo

lcan

noge

nic

sedi

men

ts

Qua

tern

ary

Con

glom

erat

e, S

ands

tone

with

trave

rtine

bed

sM

oder

n de

posi

ts

481

SALT

AO

ut o

fzo

nes

Elsa

24ﾟ2

7'66

ﾟ16'

Bor

ates

Foss

il ev

apor

itePl

eist

ocen

ePe

lite,

Eva

porit

e, T

rave

rtine

,B

orat

esB

lanc

a Li

la F

orm

atio

n

482

SALT

AO

ut o

fzo

nes

Coq

uem

ayo,

Em

ma

24ﾟ2

7'66

ﾟ16'

Perli

te (V

olca

nic

glas

s)Irr

egul

ary

strat

iform

edbo

dyTe

rtiar

y (P

lioce

ne)

And

esite

, Dac

ite, P

yroc

last

ics

483

SALT

AO

ut o

fzo

nes

Tina

, Jus

ta24

ﾟ27'

53"

66ﾟ2

5'25

"Pe

rlite

(Vol

cani

cgl

ass)

Irreg

ular

y str

atifo

rmed

body

Terti

ary

(Plio

cene

)A

ndes

ite, D

acite

, Pyr

ocla

stic

s

484

SALT

AO

ut o

fzo

nes

El C

edro

24ﾟ2

8'66

ﾟ30'

Mn

Vei

n/Im

preg

natio

nO

rdov

icia

n, Q

uate

rnar

yR

yoda

citic

por

phyr

y,G

rand

iorit

e, C

ongl

omer

ate,

Oire

Eru

ptiv

e C

ompl

ex

485

SALT

AO

ut o

fzo

nes

San

Fern

ando

, Rec

onqu

ista

La C

alde

ra24

ﾟ28'

65ﾟ2

8'Pb

-Ag

Vei

nsga

lena

, qua

rtzPr

ecam

bria

n, C

ambr

ian

Slat

es, p

hylli

tes,

grey

wac

kes.

Qua

rtzite

sPu

ncov

isca

na F

orm

atio

n, M

esón

Gro

up48

6SA

LTA

Out

of

zone

sSa

n Ju

sto,

Lag

una

Seca

, Olg

a,St

ella

and

oth

ers

Las C

ueva

s24

ﾟ28'

02"

66ﾟ2

9'30

"M

nLe

nse,

vei

nlet

spy

rolu

site

, psi

lom

elan

eM

n:20

%80

,000

tQ

uate

rnar

yC

ongl

omer

ate,

San

dsto

neTe

rrac

e se

dim

ents

487

SALT

AO

ut o

fzo

nes

San

Car

los

Las C

ueva

s24

ﾟ30'

02"

66ﾟ2

9'30

"M

nLe

nse,

vei

nlet

spy

rolu

site

, psi

lom

elan

eQ

uate

rnar

yC

ongl

omer

ate,

San

dsto

neM

oder

n de

posi

ts

488

SALT

AO

ut o

fzo

nes

El S

auce

La M

erce

d24

ﾟ35'

65ﾟ0

9'Li

mes

tone

Stra

tifor

mlim

esto

ne, o

olite

Cre

tace

ous,

Qua

tern

ary

Ool

itic

limes

tone

, Tra

verti

neY

acor

aite

For

mat

ion,

El S

auce

Form

atio

n48

9SA

LTA

Out

of

zone

sPl

atea

daQ

uebr

ada

del R

ío T

oro

(El G

ólgo

ta)

24ﾟ3

9'65

ﾟ47'

Pb-A

gV

eins

gale

na, q

uartz

Prec

ambr

ian

Gre

ywac

kes,

pelit

es, s

chis

tsPu

ncov

isca

na F

orm

atio

n

490

SALT

AO

ut o

fzo

nes

Och

aqui

(19

Perte

nenc

ias)

24ﾟ4

0'07

"66

ﾟ29'

26"

Mn-

FeSu

b-co

ncor

dant

man

to,

Irre

gula

res,

Vei

n/ve

inle

ts,

Impr

egna

tion

pyro

lusi

te, p

silo

mel

ane

Mn:

9.7%

, Fe 2

O3:6

.3%

201,

289t

Terti

ary

(Plio

cene

)Tu

ff, C

ongl

omer

ate,

Bre

ccia

,Sa

ndst

one

Abr

a de

l Gal

lo F

orm

atio

n

491

SALT

AO

ut o

fzo

nes

Pozo

Bra

vo24

ﾟ43'

26"

66ﾟ1

2'28

"Tr

aver

tine-

onix

1,80

0tPl

eist

ocen

e - H

oloc

ene

Hyd

atog

enic

lim

esto

ne

492

SALT

AO

ut o

fzo

nes

Cer

ro N

egro

24ﾟ5

1'42

"66

ﾟ39'

50"

Cu

Vei

nO

rdov

icia

nG

rani

teO

ire E

rupt

ive

Com

plex

493

SALT

AO

ut o

fzo

nes

Cié

naga

Gra

nde

24ﾟ5

4'02

"66

ﾟ37'

38"

Mn

Impr

egna

tion,

Vei

nQ

uate

rnar

ySa

nds,

Tuff

Talu

s dep

osits

494

SALT

AO

ut o

fzo

nes

El C

arm

en, L

os P

inos

, El T

arco

,M

ojón

Pac

o, S

an C

ayet

ano,

San

La M

erce

d24

ﾟ55'

65ﾟ2

4'Li

mes

tone

Stra

tifor

mlim

esto

ne, o

olite

Cre

tace

ous

Cal

care

ous s

ands

tone

, Ool

itic

limes

tone

, San

dy m

arl

Yac

orai

te F

orm

atio

n, L

echo

Form

atio

n49

5SA

LTA

Out

of

zone

sLa

Cañ

adita

24ﾟ5

6'65

ﾟ27'

Lim

esto

neSt

ratif

orm

Cre

tace

ous

Cal

care

ous s

ands

tone

, Ool

itic

limes

tone

, San

dy m

arl

Yac

orai

te F

orm

atio

n, L

echo

Form

atio

n49

6SA

LTA

Out

of

zone

sC

itrus

24ﾟ5

7'65

ﾟ28'

Lim

esto

neSt

ratif

orm

Cre

tace

ous

Cal

care

ous s

ands

tone

, Ool

itic

limes

tone

, San

dy m

arl

Yac

orai

te F

orm

atio

n, L

echo

Form

atio

n49

7SA

LTA

Out

of

zone

sM

i Esp

eran

za24

ﾟ58'

65ﾟ2

8'Li

mes

tone

Stra

tifor

mC

reta

ceou

sC

alca

reou

s san

dsto

ne, O

oliti

clim

esto

ne, S

andy

mar

lY

acor

aite

For

mat

ion,

Lec

hoFo

rmat

ion

498

SALT

AO

ut o

fzo

nes

Sant

a El

ena

24ﾟ5

8'65

ﾟ28'

Lim

esto

neSt

ratif

orm

Cre

tace

ous

Cal

care

ous s

ands

tone

, Ool

itic

limes

tone

, San

dy m

arl

Yac

orai

te F

orm

atio

n, L

echo

Form

atio

n49

9Sa

ltaO

ut o

fzo

nes

El T

arad

orG

uach

ipas

25° 3

8'65

° 23'

Au

Mes

othe

rmal

Au

vein

sgo

ld, q

uartz

Prec

ambr

ian

Slat

es, p

hylli

tes,

grey

wac

kes

Punc

ovis

cana

For

mat

ion

500

SALT

AO

ut o

fzo

nes

Los M

anan

tiale

sC

afay

ate

25ﾟ0

3'66

ﾟ30'

Mic

aPe

gmat

iteto

urm

alin

e, q

uartz

, mic

rocl

ine,

bio

tite,

mus

covi

te, b

eryl

Ord

ovic

ian

Gra

nodi

orite

, Rhy

odac

itic

porp

hyry

Oire

Eru

ptiv

e C

ompl

ex

501

SALT

AO

ut o

fzo

nes

Que

brad

a de

Esc

oipe

25ﾟ1

0'65

ﾟ50'

Cu

mal

achi

te, a

zurit

re, c

halc

ocite

502

SALT

AO

ut o

fzo

nes

Cus

todi

o, S

an M

artín

, Sal

aman

caQ

uebr

ada

de E

scoi

pe25

ﾟ10'

65ﾟ4

9'C

uSt

rata

boun

d C

um

alac

hite

, azu

ritre

, cha

lcoc

iteC

u: 0

.7 %

152,

000

tC

reta

ceou

sC

ongl

omer

ates

and

arc

osic

sand

stone

sSa

nta

Bár

bara

Sub

grou

p

503

SALT

AO

ut o

fzo

nes

La P

acha

mam

itaG

uach

ipas

25ﾟ3

5'65

ﾟ24'

Au

Mes

othe

rmal

Au

vein

sPr

ecam

bria

nSl

ates

, phy

llite

s, gr

eyw

acke

sPu

ncov

isca

na F

orm

atio

n

504

SALT

AO

ut o

fzo

nes

Doñ

a In

ésA

lem

anía

25ﾟ3

8'65

ﾟ37'

Cu-

FeSt

rata

boun

d C

uC

reta

ceou

sC

ongl

omer

ates

and

sand

stone

sPi

rgua

Sub

grou

p

505

SALT

AO

ut o

fzo

nes

Mar

ia E

lena

, Azu

l, La

s Coy

asA

lem

anía

25ﾟ5

6'65

ﾟ42'

Cu

stra

ta-b

ound

Prec

ambr

ian,

Cre

tace

ous

Schi

sts, s

hale

s and

sand

stone

s.C

ongl

omer

ates

Punc

ovis

cana

For

mat

ion,

Pirg

uaSu

bgro

up50

6SA

LTA

Out

of

zone

sEu

dosi

a, L

a G

auch

itaC

afay

ate

26ﾟ0

6'66

ﾟ28'

Mic

aPe

gmat

iteto

urm

alin

e, q

uartz

, mic

rocl

ine,

bio

tite,

mus

covi

te, b

eryl

Ord

ovic

ian

Gra

nite

, Gra

nodi

orite

Oire

Eru

ptiv

e C

ompl

ex

507

TUC

UM

AN

Out

of

zone

sSe

ctor

Vol

cán

Azu

l26

ﾟ11'

65°4

0'A

u-A

gV

ein

Upp

er P

reca

mbr

ian

- Low

erC

ambr

ian

Slat

e, P

hylli

te, S

ands

tone

Punc

ovis

cana

For

mat

ion

508

TUC

UM

AN

Out

of

zone

sSa

linas

de

Am

aich

a26

ﾟ35'

65°5

7'Sa

ltIm

preg

natio

nTe

rtiar

ySa

ndst

one

509

TUC

UM

AN

Out

of

zone

sPe

ñas A

zule

s26

ﾟ39'

65°4

0'Li

mes

tone

Stra

tifor

mC

aCO

3:87-

92 %

15.6

Mt (

mea

sure

d)Pr

ecam

bria

n - L

ower

Pal

eozo

icG

neiss

, Lim

esto

nePe

ñas A

zule

s For

mat

ion

510

TUC

UM

AN

Out

of

zone

sC

erro

s El N

egrit

o y

Bay

os26

ﾟ43'

65°4

2'A

u-A

gV

ein/

Dis

sem

inat

edG

rano

dior

ite, B

iotit

e-qu

artz

-sc

hist

511

TUC

UM

AN

Out

of

zone

sA

bra

del T

oro

27ﾟ0

0'65

°58'

Cu-

Au

Dis

sem

inat

edU

pper

Pre

cam

bria

nG

neis

s, M

igm

atite

Pisc

oyac

u G

neis

s

512

TUC

UM

AN

Out

of

zone

sLa

s Mer

cede

s (C

hava

rría

)27

ﾟ35'

65°5

4'W

-(Cu-

Pb-Z

n)D

isse

min

ated

Upp

er P

reca

mbr

ian

Gne

iss,

Mig

mat

itePi

scoy

acu

Gne

iss

13 /

13

Tabl

e A

-6a

List

of m

ega

foss

il

No.

Dat

eSam

ple N

o.

Lat (D)

Lat

(M)

Lat

（S)

Lon

(D)

Lon

(M)

Lon

（S)

Alt.

(m)

Dis

tric

tLocal

ity

Unit

Form

atio

nId

entificat

ion

Age

130-O

ct-

01

A01TKF01

23

13

12.9

65

38

10.6

3845

Agu

ilar

Lam

pasa

r fm

.

Par

abol

ina(

Neo

para

bolin

a) f

requ

ens

arge

ntin

a　(A

saph

ida）

[ex

Par

abolin

a ar

gentina(

kays

us)

]P

hoto

-1a

Upp

erm

ost

Can

bria

n-Low

erm

ost

Ord

ovi

cia

n

201-N

ov-

01

A02TKF02

22

23

20.5

65

64

23.8

3950

La

Cie

nag

aA

saph

id (

Asa

phid

a）P

hoto

-2

Ord

ovi

cia

n

307-N

ov-

01

A01TK057

23

39

57.8

65

42

1.4

4094

Tusc

aM

eso

n G

. or

St.V

icto

ria

G.

Art

icule

ta, In

articule

taP

hoto

-3 (

outc

rop)

Low

er

Tre

mad

ocia

n o

r U

pperm

ost

Can

bria

n-Low

erm

ost

Ord

ovi

cia

n

431-O

ct-

02

A02R

F055

22

651.3

65

857.5

-San

ta V

icto

ria

Vis

cac

han

i

Par

abol

ina

(Neo

para

bolin

a) f

requ

ens

arge

ntin

a(k

ayse

r)A

ngel

ina

hyer

onin

i (T

rilo

bite

)P

ygid

ium

(tai

l pa

rt) of as

afid

os

Phoot-

4

Upp

er

Cam

bria

n -

Low

er

Tre

mad

ocia

n

528-O

ct-

02

A02TK013

23

17

39.1

65

46

37.8

-A

guila

rLam

pasa

r fm

.

Identical

to A

02KK051

Ade

logr

aptu

s(G

raph

tolit

e)

-P

oss

ible

Photo

-5a,

bTre

mad

ocia

n

628-O

ct-

02

A02KK051

23

17

39.3

65

46

37.8

-A

guila

rN

W p

art

of

Agu

ilar

mounta

inLam

pasa

r fm

.M

ollu

sca;

Gas

tropo

da P

eele

roph

on o

ehle

rti(B

erg

ero

n)

Photo

-6

Low

er

Ord

ovi

cia

n

728-O

ct-

02

A02KK052

23

13

7.6

65

38

10

-A

guila

rQ

uebra

da.

Am

arill

o/hi

llLam

pasa

r fm

.

Ang

elin

a hy

eron

ini

Par

abol

ina(

Neo

para

bolin

a) f

regu

ens

arge

ntin

aM

icra

gnos

tus

hoek

i KO

BA

YA

SH

IR

uso

phyc

us

(tra

ces

foss

ils)

Tra

ces

of

trilo

bite

sSam

e local

ity

of

A01TKF01

Photo

-7

Upp

er

Cam

bria

n -

Low

er

Tre

mad

ocia

n

829-O

ct-

02

Gra

ptolit

es1

-A

guila

rQ

uebra

da.

Am

arill

o/hi

llA

coite f

m.

Bal

togr

aptu

s sp

. an

d D

idym

ogr

aptu

s sp

(fr

agm

ents

)(Ide

ntified

by D

r. G

uill

erm

o L

. A

lban

esi

)P

hoto

-8

late

Low

er

Ord

ovi

cia

n(e

arly

Are

nig

age

)

Iden

tifie

r; (T

riobi

te e

tc.)

Prof

.Sus

ana

Mal

anca

, Cat

edra

de

Pale

onto

logi

a G

ener

al, E

scue

la d

e G

eolo

gia,

Uni

vers

idad

Nac

iona

l de

Salta

(Gra

ptlit

e) D

r. G

uille

rmo

L. A

lban

esi,

CO

NIC

ET -

Mus

eo d

e Pa

leon

tolo

gía,

Uni

vers

idad

Nac

iona

l de

Cór

doba

We

are

grat

eful

to P

rofe

ssor

Sus

ana

Mal

anca

and

Doc

tor G

uille

rmo

L. A

lban

esi f

or th

eir c

oope

ratio

n.

Tabl

e A

-6b

Phot

o of

meg

a fo

ssil

Photo

-1: A

01TKF01

Photo

-2: A

02TKF02

Photo

-3: A

01TK057

Photo

-4: A

02R

F055

Photo

-5: A

02TK013

Photo

-6: A

02KK051

Photo

-7: A

02KK052

Photo

-8: gr

apto

lites1

a

b

c

a

b

Tabl

e A

-7 L

ist o

f col

lect

ed d

ata

No.

Title

Lang

uage

Aut

hor

Yea

rO

rgan

izat

ion

Cat

egor

yC

omm

ents

Sour

ce1

DG

FM(1

975)

INFO

RME

FIN

AL,

ARE

A D

E RE

SERV

A N

o.25

"VA

LLEC

ITO

"Sp

anis

hJ.

Dar

occa

1975

/12

Dire

ccio

n G

ener

al d

e Fa

bric

acio

nes M

ilita

res,

Subd

irecc

ion

de D

esar

rollo

Min

ero,

Dep

arta

men

toG

eolo

gia

y M

iner

ia

VA

LLEC

ITO

Geo

logy

and

min

eral

iztio

n of

Val

leci

to a

rea

incl

udin

g ge

oche

mis

try a

nd g

eoph

ysic

s.G

uillo

u

2M

inis

terio

de

Indu

stria

y M

iner

ia, S

ubse

cret

aria

de

Min

eria

.PE

DID

O D

E ZO

NA

DE

RESE

RVA

No.

34, Z

ON

A:

"LA

GU

NA

DEL

SA

LITR

E", M

OSA

ICO

: 19-

A1

y 19

-B1,

Prov

inci

a: C

ATA

MA

RC

A

Span

ish

O. G

onza

les

????

Min

iste

rio d

e In

dust

ria y

Min

eria

, Sub

secr

etar

ia d

eM

iner

ia, N

OA

1 G

EOLO

GIC

O M

INER

OLA

GU

NA

DEL

SA

LITR

EG

eolo

gy a

nd m

iner

aliz

tion

of S

alitr

e ar

eain

clud

ing

geoc

hem

istry

.G

onza

lez

3M

inis

terio

de

Indu

stria

y M

iner

ia, S

ubse

cret

aria

de

Min

eria

.A

REA

DE

RESE

RVA

"LA

GU

NA

DEL

SA

LITR

E" N

o.34

,M

osai

cos 1

9-A

1-B

1Sp

anis

hLu

is F

. y N

avar

ro G

arci

a19

75M

inis

terio

de

Indu

stria

y M

iner

ia, S

ubse

cret

aria

de

Min

eria

, NO

A 1

GEO

LOG

ICO

MIN

ERO

LAG

UN

A D

EL S

ALI

TRE

Geo

logy

of S

alitr

e ar

ea.

Gon

zale

z

4M

inis

terio

de

Indu

stria

y M

iner

ia, S

ubse

cret

aria

de

Min

eria

.G

EOG

RAFI

A :

HO

JA L

AG

UN

A B

LAN

CASp

anis

hJu

an C

arlo

s Tur

ner

Min

iste

rio d

e In

dust

ria y

Min

eria

, Sub

secr

etar

ia d

eM

iner

ia,

LAG

UN

A B

LAN

CAG

eogr

aphy

of L

agun

a B

ranc

a ar

eaG

onza

lez

5Se

rvic

io M

iner

o N

acio

nal(1

981)

ESTU

DIO

GEO

LOG

ICO

ECO

NO

MIC

O, A

REA

DE

INV

ESTI

GA

CIO

N G

EOLO

GIC

O M

INER

A N

o.34

,"L

AG

UN

A D

EL S

ALI

TRE"

, DEP

ART

AM

ENTO

BEL

EN,

PRO

VIN

CIA

DE

CATA

MA

RCA

Span

ish

Osv

aldo

Edg

ar G

onza

lez

1981

Serv

icio

Min

ero

Nac

iona

l, Ex

plor

acio

n M

iner

a de

laR

egio

n N

oroe

ste,

Noa

Geo

logi

co M

iner

oLA

GU

NA

DEL

SA

LITR

EG

eolo

gy a

nd m

iner

aliz

tion

of S

alitr

e ar

eain

clud

ing

geoc

hem

istry

.G

onza

lez

6Se

rvic

io M

iner

o N

acio

nal(1

984)

ARE

A D

E IN

VES

TIG

ACI

ON

GEO

LOG

ICO

MIN

ERA

LN

o.41

, "V

ACA

VIZ

CAN

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AL

Span

ish

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zalo

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loet

a19

84/0

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icio

Min

ero

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iona

l, Ex

plor

acio

n M

iner

a de

laR

egio

n N

oroe

ste,

Noa

Geo

logi

co M

iner

oV

ACA

VIZ

CAN

AG

eolo

gy a

nd m

iner

aliz

tion

of V

AC

AV

IZC

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A a

rea

incl

udin

g ge

oche

mis

try,

geop

hysi

cs, d

rillin

g.

Gon

zale

z

7D

GFM

(197

5)A

REA

DE

RESE

RVA

No.

24, "

BREA

LITO

", IN

FORM

EFI

NA

LSp

anis

h19

75/1

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irecc

ion

Gen

eral

de

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icac

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s Mili

tare

s,Su

bdire

ccio

n de

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arro

llo M

iner

o, D

epar

tam

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logy

and

min

eral

iztio

n of

BR

EALI

TO a

rea

incl

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g ge

oche

mis

try.

SEG

EMA

R -

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8D

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(197

5)A

REA

DE

RESE

RVA

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18, "

NEV

AD

O D

E A

CAY

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FORM

E FI

NA

LSp

anis

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irecc

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eral

de

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icac

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s Mili

tare

s,Su

bdire

ccio

n de

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arro

llo M

iner

o, D

epar

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ento

Geo

logi

a y

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eria

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CAY

Min

a H

uaic

o H

onda

Min

a En

cruc

ijada

Gru

po M

inas

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urno

Geo

logy

and

min

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EA

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rea

incl

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EMA

R -

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9D

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(198

0a)

AR

EA D

E R

ESER

VA

No.

23, "

INC

A V

IEJO

" (D

epar

tam

ento

Los A

ndes

-Pro

v. d

e Sa

lta)

Span

ish

Hum

berto

Cec

ere

1980

/03

Dire

ccio

n G

ener

al d

e Fa

bric

acio

nes M

ilita

res,

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tro d

eEx

plor

acio

n G

eolo

gico

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era

IIIN

CA

VIE

JOG

eolo

gy a

nd e

cono

mic

geo

logy

of I

NC

AV

IEJO

are

a.SE

GEM

AR

-Sa

lta

10D

GFM

(197

5)A

REA

DE

RESE

RVA

No.

26, "

ORG

AN

ULL

O" -

Pro

vinc

iaSa

lta -,

INFO

RM

E FI

NA

LSp

anis

hO

. Vie

ra19

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irecc

ion

Gen

eral

de

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icac

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tare

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iner

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gy a

nd o

re d

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it of

OR

GA

NU

LLO

area

.SE

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AR

-Sa

lta

11D

GFM

(197

5)A

REA

DE

RESE

RVA

No.

31, "

ESPE

RAN

ZA-IN

CACH

ULE

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FORM

E FI

NA

LSp

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hC

arlo

s Lur

go, C

. Mor

ello

,197

5/12

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ccio

n G

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e Fa

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esar

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ero,

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arta

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ia

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a

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PERA

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incl

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oche

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try, g

eoph

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s and

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lings

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EMA

R -

Salta

12D

GFM

(197

5)A

REA

DE

RESE

RVA

No.

22,

"CEN

TEN

ARI

O",P

ROV

INCI

A D

E SA

LTA

, IN

FORM

EFI

NA

L

Span

ish

Car

los L

urgo

, C. M

orel

lo,

Mar

io C

resp

o K

enne

dy,

Nor

berto

Pan

cetti

and

Juan

Car

los Z

anet

tini

1975

/12

Dire

ccio

n G

ener

al d

e Fa

bric

acio

nes M

ilita

res,

Cen

tro d

eEx

plor

acio

n G

eolo

gico

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era

IICE

NTE

NA

RIO

Geo

logy

and

eco

nom

ic g

eolo

gy o

fC

ENTE

NA

RIO

are

a, in

clud

ing

geoc

hem

istry

,ge

ophy

sics

and

dril

lings

.

SEG

EMA

R -

Salta

13Se

cret

aria

de

Min

eria

(198

5)ES

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IO D

EL A

REA

DE

INV

ESTI

GA

CIO

NG

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GIC

O M

INER

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o.1,

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MEN

TO A

NTO

FAG

AST

A D

E LA

SIE

RRA

,PR

OV

INCI

A D

E CA

TAM

ARC

A

Span

ish

Osv

aldo

Edg

ar G

onza

lez

1985

/3Se

cret

aria

de

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eria

, Dire

ctio

n N

acio

nal d

e M

iner

ia y

Geo

logi

a, C

entro

de

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orac

ion,

NO

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IABL

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eolo

gy a

nd e

cono

mic

geo

logy

of

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BLIL

LOS

area

.O

. Gon

zale

z

14A

rgen

tina

Min

eral

Dev

elop

men

t S.A

.(199

4)ST

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TOB

OU

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Zn-A

g D

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SITS

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ENTI

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AH

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ININ

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Engl

ishD

.H.T

RABE

RT,

J.GIU

DIC

I, B.

HU

GH

ESan

d I.G

EMU

TS

1994

/11/

25A

rgen

tina

Min

eral

Dev

elop

men

t S.A

.PU

MA

HU

ASI

MIN

ING

DIS

TRIC

TM

ina

Bel

gica

Min

a So

lde

May

o

Min

a

Geo

logy

and

min

eral

izat

ion

of P

umah

uasi

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ing

Dis

trict

, inc

ludi

ng g

eoch

emis

try,

geop

hysi

cs a

nd d

rillin

gs.

15D

irecc

ion

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iona

l Del

Ser

vici

o G

eolo

gico

(199

6)CO

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ish

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.MA

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l Del

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o G

eolo

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LG

eolo

gy a

nd m

iner

aliz

atio

n of

"El A

lisal

"pr

ospe

ct.

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na d

elV

alle

Mar

tinez

16Y

MA

D(2

000)

DES

CRIP

CIO

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PERA

CIO

N A

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BRER

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anis

hY

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iner

osA

guas

del

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nisi

o20

00/0

3Y

acim

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os M

iner

os d

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gua

de D

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sio

ALU

MBR

ERA

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eral

info

rmat

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lum

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ojec

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iner

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- M

INER

IA Y

OPE

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ES, S

ECTO

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INER

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ARA

LLO

NN

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- LA

S BL

END

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ish

MA

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AR

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ERET

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iner

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LLO

N N

EGRO

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logy

, ore

dep

osits

and

ope

ratio

ns o

f Alto

de la

Ble

nda,

Far

allo

n N

egro

.M

. Ald

eret

e

No.

Title

Lang

uage

Aut

hor

Yea

rO

rgan

izat

ion

Cat

egor

yC

omm

ents

Sour

ce18

Hon

gn,F

.D.;

Tubi

a,J.M

.; A

rang

uren

,A.;

Mon

,R. y

Bat

tagl

ia,R

.(200

1)IN

TRU

SIO

N D

EL G

RA

NIT

O R

OJO

DEL

BA

TOLI

TO D

ETA

STIL

EN

ARE

NIS

CAS

EOPA

LEO

ZOIC

AS

EN E

LA

NG

OST

O D

E LA

QU

ESER

A, C

ORD

ILLE

RA O

RIEN

TAL

, SA

LTA

.

Span

ish

FERN

AN

DO

D.H

ON

GN

,JO

SE M

.TU

BIA

, AIT

OR

ARA

NG

URE

N,

RIC

AR

DO

MO

N,

RICA

RDO

BA

TTA

GLI

A

2001

Aso

ciac

ion

Geo

logi

ca A

rgen

tina

BA

TOLI

TO D

E TA

STIL

Red

gra

nite

intru

sion

in T

astil

bat

holit

h w

ithin

narr

ow e

opal

eozo

ic sa

ndst

one

of th

e Q

uese

ra,

Cor

dille

ra O

rient

al, S

alta

.

SEG

EMA

R -

Salta

19C

hern

icof

f,C.J.

y Z

appe

ttini

,E.O

.(200

0)IN

TERP

RETA

QCI

ON

GEO

LOG

ICO

-MET

ALO

GEN

ICA

DEL

LEV

AN

TAM

IEN

TO A

ERO

MA

GN

ETIC

O D

E LA

PUN

A, A

RGEN

TIN

A

Span

ish

CH

ERN

ICO

FF, C

.J. Y

ZAPP

ETTI

NI,

E.O

.20

00/0

7IX

CO

NG

RESO

GEO

LOG

ICO

CH

ILEN

OA

ERO

MA

GN

ETIC

O D

E LA

PUN

AG

eolo

gic-

met

alog

enic

inte

rpre

tatio

n of

aero

mag

netic

surv

ey in

the

Puna

, Arg

entin

aSE

GEM

AR

-Sa

lta

20B

ecch

io,R

.; Lu

cass

en,F

.; K

asem

ann,

S.; F

ranz

,G. y

Vira

mon

te,J.

(199

9)G

EOQ

UIM

ICA

Y S

ISTE

MA

TIC

A IS

OTO

PIC

A D

ERO

CAS

MET

AM

ORF

ICA

S D

EL P

ALE

OZO

ICO

INFE

RIO

R. N

ORO

ESTE

DE

ARG

ENTI

NA

Y N

ORT

E D

ECH

ILE

(21-

27S)

Span

ish

R.BE

CCH

IO,

F.LU

CASS

EN,

S.K

ASE

MA

NN

,G

.FRA

NZ,

YJ.V

IRA

MO

NTE

1999

ACT

A G

EOLO

GIC

A H

ISPA

NIC

ARO

CAS

MET

AM

ORF

ICA

SD

EL P

ALE

OZO

ICO

INFE

RIO

R

Geo

chem

istry

and

isot

ope

syst

emat

ics o

f Ear

lyPa

leoz

oic

met

amor

phic

rock

s. N

orth

wes

tA

rgen

tina

and

Nor

th C

hile

(21-

27S)

SEG

EMA

R -

Salta

21G

orus

tovi

c,S.

; Maq

uilla

s,R.;

Mat

thew

s,S.;

Sabi

no,I.

y S

alfit

y,J.(

1999

)D

EPO

SITO

S ES

TRA

TOLI

GA

DO

S D

E C

u-U

(Ag,

Pb,

Zn)

EN E

L SU

R D

E LA

CU

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DEL

GRU

PO S

ALT

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RET

AC

ICO

-PA

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O),

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AR

GEN

TIN

O

Span

ish

SER

GIO

GO

RU

STO

VIC

H, R

OSA

MA

RQU

ILLA

S,ST

EPH

EN M

ATT

HEW

S,IG

NA

CIO

SA

BIN

O, Y

1999

XIV

CO

NG

RES

O G

EOLO

GIC

O A

RG

ENTI

NO

, AC

TAII

, SA

LTA

DEP

OSI

TOS

ESTR

ATO

LIG

AD

OS

DE

Cu-

U(A

g, P

b, Z

n)

Stra

ta-b

ound

dep

osits

of C

u-U

(Ag,

Pb,

Zn)

inth

e so

uth

of th

e ba

sin

of S

alta

gro

up(C

reta

ciou

s-Pa

leoz

oic)

, Nor

th A

rgen

tina.

SEG

EMA

R -

Salta

22H

ongn

,F. y

Bec

chio

,R.(1

999)

Gui

a de

Cam

po, B

asam

ento

Igne

o - M

etam

orfic

o, F

ajas

de

Def

orm

acio

n D

uctil

Aso

ciad

as a

Gra

nito

ides

y R

ocas

Met

amor

ficas

de

Baj

o a

Alta

Gra

do, V

alle

s Cal

chaq

uies

,Sa

lta

Span

ish

FERN

AN

DO

HO

NG

N Y

RAU

L BE

CCH

IO19

99/0

9X

IV C

ON

GR

ESO

GEO

LOG

ICO

AR

GEN

TIN

O Y

UN

IVER

SID

AD

NA

CIO

NA

L D

E SA

LTA

Igne

ous-

met

amor

phic

bas

emen

t, du

ctile

defo

rmat

ion

faul

ts a

ssoc

iate

d w

ith g

rani

toid

san

d m

etam

orph

ic ro

cks o

f low

to h

igh

grad

e,C

alch

aqui

es v

alle

y, S

alta

SEG

EMA

R -

Salta

23B

ecch

io,R

.; Lu

cass

en,F

.; Fr

anz,

G.;

Vira

mon

te,J.

y W

emm

er,K

.(199

9)EL

BA

SAM

ENTO

PA

LEO

ZOIC

O IN

FERI

OR

DEL

NO

REST

E D

E A

RGEN

TIN

A (2

3-27

) - M

ETA

MO

RFIS

MO

Y G

EOC

RO

NO

LOG

IA.

Span

ish

RAU

L BE

CCH

IO,

FRIE

ND

RIC

LUCA

SSEN

, GER

HA

RDFR

A N

Z, JO

SEV

IRA

MO

NTE

Y K

LAU

S

1999

XIV

CO

NG

RES

O G

EOLO

GIC

O A

RG

ENTI

NO

Early

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eozo

ic b

asem

ent o

f nor

thea

st o

fA

rgen

tina

(23-

27) -

Met

amor

phis

m a

ndge

ochr

onol

ogy

SEG

EMA

R -

Salta

24Pe

trino

vic,

I.A.;

Mitj

avila

,J; V

irmon

te,J.

G.;

Mar

ti,E.

J.; B

ecch

io,R

.;A

rnos

io,M

. y C

olom

bo,F

.(199

9)D

ESC

RIP

CIO

N G

EOQ

UIM

ICA

Y G

EOD

RO

NO

LOG

ICA

DE

SECU

ENCI

AS

VO

LCA

NIC

AS

NEO

GEN

AS

DE

TRA

SARC

O, E

N E

L EX

TREM

O O

RIEN

TAL

DE

LACA

DEN

A V

PLCA

NIC

A T

RAN

SVER

SAL

DEL

QU

EVA

R(N

ORO

ESTE

DE

ARG

ENTI

NA

)

Span

ish

I.A.P

ETR

INO

VIC

,J.M

ITJA

VIL

A,

J.G.V

IRA

MO

NTE

,J.M

ART

I, R.

BECC

HIO

,M

.AR

NO

SIO

Y F

.CO

LOM

BO

1999

ACT

A G

EOLO

GIC

A H

ISPA

NIC

AG

eoch

emis

try a

nd G

eoch

rono

logy

des

crip

tions

of th

e B

acka

rc N

eoge

ne v

plca

nic

sequ

ence

s in

the

east

ern

bord

er o

f the

Que

var T

rans

vers

alV

olca

nic

Ran

ge (N

W A

rgen

tina)

SEG

EMA

R -

Salta

25V

iram

onte

,J.G

.; K

ay,S

.M.;

Bec

chio

,R.;

Esca

yola

,M. a

ndN

ovits

ki,I.

(199

9)CR

ETA

DEO

US

RIFT

REL

ATE

D M

AG

MA

TISM

INCE

NTR

AL-

WES

TERN

SO

UTH

AM

ERIC

AEn

glish

J.G.V

IRA

MO

NTE

,S.

M.K

AY

, R.B

ECCH

IO,

M.E

SCA

YO

LA,

I.NO

VIT

SKI

1999

Jour

nal o

f Sou

th A

mer

ican

Ear

th S

cien

ces

CRET

AD

EOU

S RI

FT R

ELA

TED

MA

GM

ATI

SM IN

CEN

TRA

L-W

ESTE

RNSO

UTH

AM

ERIC

A

SEG

EMA

R -

Salta

26Lu

cass

en,F

.; B

ecch

io,R

.; W

ilke,

H.G

.; Fr

anz,

G.;

Thirl

wal

l,M.F

.;V

irmon

te,J.

and

Wem

mer

,K.(2

000)

PRO

TERO

ZOIC

-PA

LEO

ZOIC

DEV

ELO

PMEN

T O

F TH

EBA

SEM

ENT

OF

THE

CEN

TRA

L A

ND

ES (1

8-26

S) -

AM

OBI

LE B

ELT

OF

THE

SOU

TH A

MER

ICA

N C

RATO

N

Engl

ishF.

LUCA

SSEN

,R.

BECC

HIO

,H

.G.W

ILK

E, G

.FRA

NZ,

M.F

.TH

IRLW

ALL

,J.V

IRA

MO

NTE

,K

.WEM

MER

2000

Jour

nal o

f Sou

th A

mer

ican

Ear

th S

cien

ces

PRO

TER

OZO

IC-P

ALE

OZO

ICD

EVEL

OPM

ENT

OF

THE

BASE

MEN

T O

FTH

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NTR

AL

AN

DES

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- A

MO

BILE

BEL

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F TH

E SO

UTH

AM

ERIC

AN

CRA

TON

SEG

EMA

R -

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.; Lu

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ish

RAU

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OSE

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GEN

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cass

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.; B

ecch

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.; H

arm

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.(199

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es (1

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USS

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liet

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NG

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L RE

PORT

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iena

ga, L

a B

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O

2001

/10

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ituto

Geo

norte

, Uni

vers

idad

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iona

l de

Salta

SEG

EMA

R -

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40M

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TERI

O D

E LA

PRO

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CCIO

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EL

EMPL

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, IN

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INER

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ish

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iner

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98M

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E LA

PRO

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CCIO

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EMPL

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S. G

orus

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ch

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R EN

MIN

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EH

IDRO

CARB

URO

SSp

anis

h /

Engl

ishSe

cret

aría

de

Min

ería

1998

MIN

ISTE

RIO

DE

LA P

ROD

UCC

ION

Y E

L EM

PLEO

,SE

CRET

ARI

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INER

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GET

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ROV

INCI

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LTA

,

S. G

orus

tovi

ch

42Su

reda

,R.J.

; Per

ez,H

.D.;

Mar

tin,J.

L. y

Flo

res,F

.J. (?

???)

EXPL

ORA

CIO

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DES

ARR

OLL

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n, P

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ish

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R.J.S

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.D.P

EREZ

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,F.

J.FLO

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AR

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9)A

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ROV

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, IN

FORM

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iner

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(200

1/10

/27)

44D

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iner

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ujuy

(197

6)IN

FORM

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UM

AH

UA

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PRO

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OR

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PA

RC

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n G

ener

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res,

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de D

esar

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1/10

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yle,

W.;

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ber,E

.; So

los,N

.; B

rodt

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,M.;

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acho

,M.

y D

iaz,

A.(1

990)

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;BA

RBER

, E; S

OLO

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OD

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CHO

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A

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LLO

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iner

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ujuy

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INCI

AL

DE

MIN

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, JU

JUY

LA G

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AD

ARA

MA

LLO

(200

1/10

/27)

No.

Title

Lang

uage

Aut

hor

Yea

rO

rgan

izat

ion

Cat

egor

yC

omm

ents

Sour

ce49

MU

ESTR

EO P

ETRO

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FICO

Y B

OSQ

UEJ

O D

EA

LTER

ACI

ON

, ARE

A D

E RE

SERV

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o.30

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ON

QU

IJA

", SE

CTO

R E

L PA

GO

EL P

AG

OLi

liana

del

Val

le M

artin

ez

50J.

Dar

occa

, Con

sulto

ríaPR

OY

ECTO

"CEN

TEN

ARI

O"

Span

ish

J. D

aroc

ca19

75/1

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form

e In

erno

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OSE

GEM

AR

-Sa

lta51

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aroc

caPR

OSP

ECTO

PA

NCH

O A

RIA

S O

VIZ

CACH

ERA

LJ.

Dar

occa

1994

Info

rme

Iner

noPA

NCH

O A

RIA

SSE

GEM

AR

-Sa

lta52

J. D

aroc

caA

nom

alia

Vic

uña

Mue

rtaJ.

Dar

occa

1994

J. D

aroc

caV

ICU

NA

MU

ERTA

Ubi

caci

on

Acc

eso

Ant

eced

ente

s

Geo

logi

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eoqu

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aR

azon

es p

ara

su e

stud

ioR

ecom

enda

cion

es

SEG

EMA

R -

Salta

53Su

reda

,R.J.

(199

9)LO

S Y

ACI

MIE

NTO

S SE

DEX

DE

PLO

MO

Y Z

INC

EN L

ASI

ERRA

DE

AG

UIL

AR,

JUJU

YSp

anis

hR

icar

do J.

Sur

eda

1999

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RSO

S M

INER

ALE

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REP

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ICA

AR

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olum

en 1

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GU

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CA

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h19

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ENER

AL

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r S.A

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gal,S

.J. y

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.J.(1

999)

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PA

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ZUCA

R, JU

JUY

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ish

Susa

na J.

Sega

l y P

ablo

J.Caf

fe19

99RE

CURS

OS

MIN

ERA

LES

DE

LA R

EPU

BLIC

AA

RG

ENTI

NA

, Vol

umen

1PA

N D

E A

ZUCA

RSE

GEM

AR

-Sa

lta

57Se

gal,S

.J.; G

odea

s,M.C

.; Pe

zzut

ti,N

. y Z

appe

ttini

,E.O

.(199

9)D

ISTR

ITO

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MA

HU

ASI

, JU

JUY

Span

ish

Susa

na J.

Sega

l, M

arta

C.G

odea

s, N

orm

aPe

zzut

ti y

Edua

rdo

O.Z

appe

ttini

1999

RECU

RSO

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INER

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AR

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INA

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AY

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AN

MA

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ERO

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EMA

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lo,A

.L.;

Bat

tagl

ia,R

.R. a

nd M

oya,

M.C

.(???

?)D

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Document A-1

STUDY OF 5 CONODONT SAMPLES

Direction of study: Dr. Mario A. Hünicken. Present report: Dr. Guillermo L. Albanesi.

Córdoba, Argentina

Introduction Five carbonate samples were processed in search of conodonts. These samples (28506 g in total) were completely digested by conventional acid etching techniques, using either 10 % acetic or formic acid. The heavy fraction of insoluble residue was separated by means of heavy liquid (bromoform). This fraction was examined through stereoscopic binocular, and microfossils were recovered by picking techniques (see Stone, 1987, for reviews on conodont laboratory methodologies). Conodonts and associated microfossils were mounted on slides for study and final storage. Record of conodont samples and results 1 Date: October 27, 2002. District: El Aguilar. Locality: Despensa Creek. Sample: L1 (overlying interval with olistoliths). Formation: Lampazar?, Saladillo? Mass: 8418 g. Lithology: Calcarenite, interbedded with shales and fine green sandstones). Sample: L2 = 7 m above L1. Mass: 4800 g. S 23º 15´40,7´´. W 65º 42´26.3´´. Micropaleontological result: both samples barren of fossils. 2 Date: October 27, 2002. District: El Aguilar. Locality: Río Grande Creek – Section with SEDEX . Sample: L3 .

Mass: 7573 g. Formation: Lampazar?, Saladillo? S 23º 07´49´´. W 65º 41´16´´. Micropaleontological result: barren of fossils. Comment: It is significant to note that a correlative level, in same study area, studied by Rao and Flores (1998) yielded a conodont assemblage with the key species Paltodus deltifer (Lindstöm, 1955) of the eponymous biozone, which allowed for dating the mineralized interval as Upper Tremadoc (Lower Ordovician) in age. 3 Date: October 28, 2002. District: El Aguilar. Locality: Quebralaite Creek. Sample: A1. Mass: 3615 g. Sample A2 = 5 m above A1. Mass: 3373 g. Formation: Saladillo? Lithology: Calcarenite nodules, 5-10 cm thick, in shales and bluish fine sandstones. Latitude: S 23º 17´39.9´´. Longitude: W 651 46´38.6´´. Altitude: 3600 m. Micropaleontological result: barren of fossils . ______________________________________________________________ 4 Date: October 8, 2002. District: El Aguilar . Locality: Despensa Creek. Sample: AO2SX011. Mass: 3200 g. Formation: Lampazar? Lithology: Limestone. Latitude: S 23º 15´37.8´´. Longitude: W 65º 42´36.7´´. Micropaleontological result: barren of fossils. ______________________________________________________________

5 Date: October 31, 2002. District: Santa Victoria. Sample: AO2TK037. Mass: 5700 g. Formation: Santa Rosita? Lithology: Limestone. Latitude: 22º 14´51.1´´ . Longitude: 64º 57´43.5´´. Altitude: 2,302 m. Micropaleontological result: After complete digestion and recovering of fossil remains by picking from undisolved residue, three elements pertaining to two conodont species were collected (Figs. 1, 2). Associated fossils include undetermined gasteropods and inarticulate brachiopods (Fig. 3). Following conodont species are determined, and consequent biochronology is established. Conodont taxonomy

Genus Rossodus Repetski and Ethington, 1983 Type species: Rossodus manitouensis Repetski and Ethington, 1983

Rossodus tenuis (Miller, 1980) Fig. 2a-b

Synonymy 1980 – Utahconus tenuis Miller, 1980, p. 36-37, pl. 2, figs. 5-7, text-fig. 4T. 1994 – Rossodus tenuis Ji and Barnes, 1994, p. 56-57, pl. 17, figs. 10-19. 2002 – Rossodus tenuis Pyle and Barnes, 2002, p. 102-103, pl. 13, fig. 21-26 (cum syn.). Material: 1 a element, 1 b element. Remarks: Diagnosis of the species was emended by Ji and Barnes (1994) from original designation given by Miller (1980), and the apparatus reconstruction was recently reconsidered by Pyle and Barnes (1994). These authors provide a detailed description of every morphotype (a, b, and c) that compose the species apparatus. Current collection includes a and b elements. Figure 2a-b illustrates the b element, which is asymmetrical, bilaterally compressed, and presents sharp anterior and posterior margins of the cusp. Both faces of cusp show a faint carina. The base is

slightly extended to posterior, with a flared postero-basal margin. Basal cavity is triangular in lateral view, with an apex directed to the anterior margin. Occurrence and age: Rossodus tenuis and Rossodus manitouensis zones sensu Pyle and Barnes 2002, or Cordylodus angulatus Zone, the second conodont biozone of the Ordovician System from other schemes of North America (e.g., Ross et al., 1997). Lower (but not lowermost). Tremadoc Stage of the global Lower Ordovician Series. About 487-489 million years (Cooper, 1999).

Genus Drepanoistodus Lindström, 1971

Type species: Oistodus forceps Lindström, 1955

Drepanoistodus sp. Fig. 1a-b

Material: 1 Sb element. Remarks: One element characteristic of the genus Drepanoistodus was recovered. Apparently, the morphotype corresponds to the Sb position in the apparatus of a new species. The illustrated specimen is distinguished by a narrow groove on the inner flank that runs along the anterior margin, as well as a proclined cusp, and oval basal margin. The absence of diagnostic morphotypes, such as the M element, precludes specific designation. Nota Bene: The Color Alteration Index of registered conodonts is ca. 3, which indicates up to 200ºC of overburden paleotemperatures for the bearer strata (Epstein et al., 1977).

Figures 1, 2. Conodont species from sample AO2TK037 (optical photomicrographs).

Figure 3. Associated fossils from sample AO2TK037 (optical photomicrographs).

References Cooper, R.A. 1999. The Ordovician time scale – calibration of graptolite and conodont

zones. In: P. Kraft and O. Fatka eds., “Short Paper of the 8th Intenational Symposium on the Ordovician System”. Acta Universitatis Carolinae – Geologica, 43(1/2): 1-4.

Epstein, A.G., Epstein, J.B. and Harris, L.D. 1977. Conodont color alteration - An index to organic metamorphism. United States Geological Survey Professional Paper, 995: 1-27.

Ji, Z. and Barnes, C.R. 1994. Lower Ordovician conodonts of the St. George Group, Port au Port Peninsula, western Newfoundland, Canada. Palaeontographica Canadiana, 11: 1-149.

Lindström, M. 1955. Conodonts from the lowermost Ordovician strata of south-central Sweden. Geologiska Föreningens I Stockholm Förhandlingar, 76: 517-604.

Lindström, M. 1971. Lower Ordovician conodonts of Europe. In: W.C. Sweet and S.M. Bergström eds., Symposium on Conodont Biostratigraphy. Geological Society of America, Memoir 127: 21-61.

Miller, J.F. 1980. Taxonomic revisions of some Upper Cambrian and Lower Ordovician conodonts with comments on their evolution. University of Kansas Paleontological Contributions, Paper 99: 1-39.

Pyle, L. and Barnes, C.R. 2002. Taxonomy, Evolution, and Biostratigraphy of Conodonts from the Kechika Formation, Skoki Formation, and Road River Group (Upper Cambrian to Lower Silurian), Northeastern British Columbia. NCR Research Press, Ottawa, Ontario, Canada: 1-227.

Rao, R.I. and Flores, F.J. 1998. Conodontes ordovícicos (Tremadociano Superior) de la sierra de Aguilar, provincia de Jujuy, Rep. Argentina. Rev. Española Micropal., XXX: 5-20.

Repetski, J. and Ethington, R.L. 1983. Rossodus manitouensis (Conodonta), a new early Ordovician index fossil. Journal of Paleontology, 57: 289-301.

Ross, R.J. Jr., Hintze, L.F., Ethington, R.L., Miller, J.F., Miller, J.F., Taylor, M.E., and Repetski, J.E. 1997. The Ibexian, Lowermost Series in the North American Ordovician. U. S. Geological Survey Professional Paper 1579: 1-50.

Stone, J. 1987. Review of investigative techniques used in the study of conodonts. In: Austin, R.L. (ed.), Conodonts: Investigative Techniques and Applications, Ellis Horwood Limited, Chichester: 17-34.

Document A2

PALYNOLOGICAL STUDY OF 19 SAMPLES

Present report: Dr. Eduardo G. Ottone INTRODUCTION The aim of this study is to provide a biostratigraphic basis for facies and pale environmental interpretations. Laboratory procedures followed conventional practices. Between 20 and 25 grams of each sample were processed. Following crushing, carbonates and silicates were removed by treatment with hydrochloric and hydrofluoric (70%) acids. Residues were sieved on 200 µm and 25 um meshes and mounted in unstained glycerine jelly. Slides were examined under a Leitz Orthoplan binocular microscope. CONCLUSIONS All samples are palynologically barren. There is almost no kerogen in the studied samples. The list of analyzed samples is the following one: 1) Rock type: shale/SEDEX Location: Río Grande, Sierra El Aguilar, Cordillera Oriental, Jujuy Province. 2) Rock type: shale. ID: A02SX010 Date: 08.10.2002 Location: Aguilar mountain, Quebrada de Despensa. Level: Cardonal? Coordinate: lat 23º 15’ 48.4’’ – lon 65º 42’ 22.9’’ Altitude: 4.074 m 3) Rock type: shale. ID: A02SX013 Date: 08.10.2002 Location: Aguilar mountain, Quebrada Despensa. Level: Lampazar Coordinate: lat 23º 15’ 37.8’’ – lon 65º 42’ 36.7’’ Altitude: 4.090 m

4) Rock type: shale. ID: A02SX018 Date: 08.10.2002 Location: Aguilar, Mina Esperanza. Level: Lampazar? Coordinate: lat 23º 08’ 20.2’’ – lon 65º 43’ 54.5’’

Altitude: 4.759 m 5) Rock type: shale. ID: A02SX017 Date: 2002 Location: Aguilar, Mina Esperanza. Level: Cardonal? Coordinate: lat 23º 10’ 5.8’’ – lon 65º 43’ 13.0’’ Altitude: 5.029 m 6) Rock type: shale. ID: A02CX002 Date: 27.10.2002 Location: Aguilar, Quebrada Despenza. Level: ? Coordinate: lat 23º 15’ 32.8’’ – lon 65º 42’ 13.1’’ Altitude: 5.029 m 7) Rock type: shale. ID: A02CX003 Date: 27.10.2002 Location: Aguilar, Río Grande. Level: ? Coordinate: lat 23º 15’ 31.0’’ – lon 65º 42’ 44.7’’ Altitude: ? 8) Rock type: shale. ID: A02SX023 Date: 08.10.2002 Location: Aguilar, Quebrada Polvorines. Level: Lampazar. Coordinate: lat 23º 13’ 14.9’’ – lon 65º 43’ 44.0’’ Altitude: 4.729 m 9) Rock type: shale. ID: A02SX021 Date: 08.10.2002 Location: Aguilar, Mina Tapada. Level: Lampazar. Coordinate: lat 23º 14’ 12.9’’ – lon 65º 43’ 42.6’’ Altitude: 4.857 m 10) Rock type: shale.

ID: A02SX009 Date: 08.10.2002 Location: Aguilar mountain, Quebrada Vacas. Level: Lampazar. Coordinate: lat 23º 10’ 3.7’’ – lon 65º 42’ 43.4’’ Altitude: 4.919 m 11) Rock type: shale. ID: A02CX050 Date: 31.10.2002 Location: Santa Victoria. Level: ? Coordinate: lat 22º 09’ 41.0’’ – lon 65º 16’ 57.5’’ Altitude: ? 12) Rock type: shale. ID: A02CX049 Date: 31.10.2002 Location: Santa Victoria. Level: ? Coordinate: lat 22º 09’ 24.7’’ – lon 65º 16’ 23.3’’ Altitude: ? 13) Rock type: shale. ID: A02CX036 Date: 31.10.2002 Location: Santa Victoria. Level: ? Coordinate: lat 22º 06’ 22.9’’ – lon 65º 10’ 30.0’’ Altitude: ? 14) Rock type: shale. ID: A02CX072 Date: 01.11.2002 Location: Santa Victoria. Level: ? Coordinate: lat 22º 23’ 17.5’’ – lon 65º 04’ 24.0’’ Altitude: ? 15) Rock type: shale. ID: A02CX092 Date: 01.11.2002 Location: Santa Victoria.

Level: ? Coordinate: lat 22º 24’ 34.9’’ – lon 65º 07’ 34.4’’ Altitude: ? 16) Rock type: shale. ID: A02CX091 Date: 01.11.2002 Location: Santa Victoria. Level: ? Coordinate: lat 22º 24’ 34.9’’ – lon 65º 07’ 34.4’’ Altitude: ? 17) Rock type: shale. ID: A02CX151 Date: 05.11.2002 Location: ? Level: ? Coordinate: lat 23º 39’ 13.4’’ – lon 66º 18’ 20.2’’ Altitude: ? 18) Rock type: shale. ID: A02CX150 Date: 05.11.2002 Location: ? Level: ? Coordinate: lat 23º 39’ 12.4’’ – lon 66º 18’ 30.8’’ Altitude: ? 19) Rock type: shale. ID: A02CX148 Date: 05.11.2002 Location: ? Level: ? Coordinate: lat 23º 39’ 07.0’’ – lon 66º 18’ 44.8’’ Altitude: ?

Chapter 4 Ground truth 4-1 Selection of survey zones For the ...

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