RESISTIVITAS BATUAN DAN MINERAL

RESISTIVITAS BATUAN DAN MINERAL

Tabel 1. Resistivitas Batuan Beku dan Metamorf (Telford, dkk., 1976)

Rock TypeResistivity Range (m)

Granite

Granite Porphyry

Feldspar Porphyry

Albite

Syenite

Diorit

Diorit Porphyry

Porphyryte

Carbonatized Porphyry

Quartz Porphyry

Quartz Diorite

Porphyry (Various)

Dacite

Andesite

Diabase Porphyry

Diabase (various)

Lavas

Gabbro

Basalt

Olivine Norite

Peridotite

Hornfels

Schists (calcareous and mica)

Tuffs

Graphite Schist

Slates (various)

Gneiss (various)

Marble

Skarn

Quarzites (various)3 x 102 - 1064.5 x 103 (wet) 1.3 x 106 (dry)

4 x 103 (wet)

3 x 102 (wet) 3.3 x 103 (dry)

102 - 106104 - 1051.9 x 103 (wet) 2.8 x 104 (dry)

10 5 x 104 (wet) 3.3 x 103 (dry)

2.5 x 103 (wet) 6 x 104 (dry)

3 x 102 9 x 1052 x 104 2 x 106 (wet) 1.8 x 105 (dry)

60 - 1042 x 104 (wet)

4.5 x 104 (wet) 1.7 x 105 (dry)

103 (wet) - 1.7 x 105 (dry)

20 5 x 107102 5 x 104103 - 10610 1.3 x 107 (dry)

103 6 x 104 (wet)

3 x 103 (wet) 6.5 x 103 (dry)

8 x 103 (wet) 6 x 107 (dry)

20 - 1042 x 103 (wet) - 105 (dry)

10 - 1026 x 102 4 x 1076.8 x 104 (wet) 3 x 106 (dry)

102 2.5 x 108 (dry)

2.5 x 102 (wet) 2.5 x 108 (dry)

10 2 x 108

Tabel 2. Resistivitas Batuan Sedimen (Telford, dkk., 1976)

Rock TypeResistivity Range (m)

Consolidated Shales

Argillites

Conglomerates

Sandstones

Limestones

Dolomite

Unconsolidated Wet Clay

Marls

Clays

Alluvium and Sands

Oil Sands20 2 x 10310 8 x 1022 x 103 - 1041 6.4 x 10850 - 1073.5 x 102 5 x 10320

3 70

1 100

10 800

4 800

Tabel 3. Resistivitas logam dan Unsur (Telford, dkk., 1976)

Logam/UnsurResistivity (m)

RangeAverage

AntimonyArsenic

Bismuth

Copper

Gold

Graphite

Iron

Lead

Mercury

Molybdenum

Nickel

Platinum

Silver

Sulphur

Tellurium

Tin

Uranium

Zinc5 x 10-7 10

107 - 101610-4 2 x 10-34.5 x 10-72.2 x 10-71.2 x 10-61.7 x 10-82.4 x 10-810-310-72.2 x 10-79.6 x 10-75.7 x 10-87.8 x 10-810-71.6 x 10-8101410-31.1 x 10-73 x 10-75.8 x 10-8

Tabel 4. Resistivitas Mineral (Telford, dkk., 1976)

MineralResistivity (m)

RangeAverage

Argentite

Bismuthinite

Covellite

Chalcocite

Chalcophyrite

Bornite

Marcasite

Pyrite

Pyrrhotite

Cinnabar

Molybdenite

Galena

Millerite

Stannite

Stibnite

Sphalerite

Cobaltite

Smaltite

Arsenopyrite

Niccolite

Sylvanite

Bauxite2 x 10-3 - 10418 570

3 x 10-7 8 x 10-53 x 10-5 0.6

1.2 x 10-5 0.3

2.5 x 10-5 0.5

10-3 3.5

2.9 x 10-5 1.5

6.5 x 10-6 5 x 10-210-3 - 1063 x 10-5 3 x 10210-3 6 x 103105 - 10121.5 - 1073.5 x 10-4 10-12 x 10-5 - 15

10-7 2 x 10-34 x 10-6 2 x 10-52 x 102 6 x 10-31.7 x 10-32 x 10-510-44 x 10-33 x 10-35 x 10-23 x 10-110-42 x 10710

2 x 10-33 x 10-75 x 1061025 x 10-510-32 x 10-5

Tabel 5. Harga Resistivitas Spesifik Batuan (Suyono, 1978)

MaterialResistivitas (m)

Air Pemasukan

Airtanah

Silt Lempung

Pasir

Pasir dan kerikil

Batu Lumpur

Batu pasir

Konglomerat

Tufa

Kelompok Andesit

Kelompok Granit

Kelompok Chert, Slate80 200

30 100

10 200

100 600

100 1000

20 200

50 500

100 500

20 200

100 2000

1000 10000

200 2000