KLASIFIKASI BATUAN KARBONAT MENURUT DUNHAM(1962)

KLASIFIKASI BATUAN KARBONAT MENURUT DUNHAM(1962)

KLASIFIKASI BATUAN KARBONAT MENURUT FOLK ( 1961)

DEPASITIONAL TEXTURE RECOGNISABLE

DEPOSITIONAL TEXTUTRE NOT RECOGNISABLE

CRYSTALINE CARBONATE

Original components not bound together during deposition

Original components were bound together during deposition

BOUND - STONE

Containing Mud

( Particles of clay and fine siltsize )

Lacks mud and is grain supported

GRAIN - STONE

Mud supported

Grain supported

PACK - STONE

More than 10% grains

WACKE -STONE

Less than 10% Grains ( Lime )

MUDSTONE

MUDSTONE

WACKESTONE

PACKSTONE

CRYSTALLINE

BOUNDSTONE

GRAINSTONE GRAINSTONE

CONSINA

BY Nds

Printed and licenses

Andika s.b.

D 611 03 036

Limestone Partly dolomitezed and Primary Dolomites

Replacement Dolomite ( V )

>10% allochems

Allochemical Rocks ( I and II )

microcrystalline coze matrix

Sparry calcite cement

< microcrystalline coze matrix

Sparry Allochemical rocks ( I )

Microcrystaline Allochemical rocks ( II )

1 10 % Allochem

< 1 % Allochem

Allochem Ghost

No Allo chem.

Ghost

Volumetric Allochem Composition

> 25 %

Oolites ( o )

< 25 % Interclast

< 25% Oolits

Volume ratio of Fossils to pellets

< 1 : 3

( p )

1 : 3 3 : 1

(bp)

> 3 : 1

( b )

> 25 %

Interclas ( i )

Intrasparudits

( Ii : Lr )

Intrasparite

( Ii : La )

Intramicrudite

( IIi : Lr )

Intramicrite

( IIi : La )

Oosparudite

( Ii : Lr )

Oosparite

( Io : La )

Oomicrudite

( IIi : Lr )

Oomicrite

( IIo : La )

Biosparudite

( Io : Lr )

Biosparite

( Ib : La )

Biopelsaprite

( Ibp : La )

Pelsparite

( Ip : La )

Oomicrudite

( IIo : Lr )

Oomicrite

( IIo : la )

Biopelmicrite

( IIbp : La )

Pelmicrite

( IIp : La )

Most Abundant Allochem

Intraclast

Intraclast bearing micrite

( IIIi : Lr or La )

Oolites

Oolites bearing micrite

( IIIo : Lr or La )

Fossils

Fossiliferus micrite

( IIIb : Lr,La or Li )

Pellets

Pelletiferus micrite

( IIIp : La )

Micrite ( IIIm : L ),if distributed Dismicrite ( III mX : L )

If primary Dolomite, Dolomicrite ( IIIm : D )

Undisturbed Biochems Rocks ( IV )

Biolithite ( IV : L )

Evident Allochems

Finely crystalline intraclastic dolomite ( Vi : D3 ) etc

Coarsely crystalline Oolitic dolomite ( Vo : D5 ) etc

Aphono crystalline Biogenic dolomite ( Vb : D1 ) etc

Very finely crystalline pellet dolomite ( Vp : D2 ) etc

Medium crystalline dolomite ( V : D4 ), Finely crystalline dolomite ( V : D3 ) etc

Printed and licenses

Andika s.b.

D 611 03 036

Allochemical rocks

I

Sparry calcite cement

II

Microcrystaline Calcite cement

Intraclasts

Intrasparite

Intramicrite

Ooids

Oosparite

Oomicrite

Fossils

Biosparite

Biomicrite

Pellets

Pelsparite

Pelmicrite

Allochem Composition

Orthochemical rocks

III

Microcrystaline calcite

Locking allochems

Micrite

IV

Autochthonous reef rocks

Biolithite

Sparry calcite

Mycrocrystaline calcite

Graphic classification of Limestone ( W.T.G., 1982 )