Records of the Geological Survey of India, Volume 128, Parts 3-5Government of India, 1993 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 193
... grey micaceous sand . Occasional potsherds and decayed bone fragments are embedded in the sequence . Up . Hazipur Surface / Formation Disconformity Oxidised yellowish grey to pale yellow clay , silty clay , occasionally mottled ...
... grey micaceous sand . Occasional potsherds and decayed bone fragments are embedded in the sequence . Up . Hazipur Surface / Formation Disconformity Oxidised yellowish grey to pale yellow clay , silty clay , occasionally mottled ...
Page 18
... grey clay lamination . Bokabil Formation : Mainly siltstone with interbands of sandstones . Bhuban Formation : Greyish sandstone with sandy shale bands . -UNCONFORMITY- BARAIL GROUP ( Not classifiable on north of Jatinga val- ley ) ...
... grey clay lamination . Bokabil Formation : Mainly siltstone with interbands of sandstones . Bhuban Formation : Greyish sandstone with sandy shale bands . -UNCONFORMITY- BARAIL GROUP ( Not classifiable on north of Jatinga val- ley ) ...
Page 6
... grey / pink granite Mediumgrained grey / pink homophanous granite with proto - orbicular structures intrusive · · Medium to Coarse - grained grey / pink granodiorite adamellite granite and migmatite ( M ) . Porphyritic with megacrysts ...
... grey / pink granite Mediumgrained grey / pink homophanous granite with proto - orbicular structures intrusive · · Medium to Coarse - grained grey / pink granodiorite adamellite granite and migmatite ( M ) . Porphyritic with megacrysts ...
Contents
Coastal studies and Neotectonics | 5 |
Chhotonagpur Gneiss East | 12 |
Investigation for copper and associated mineralisation | 18 |
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alignment amphibolite Andaman Andhra Pradesh apatite bands basemetal basin Bihar biotite block boreholes carbonatite charnockite chlorite clay conglomerate covered depth dips district dolerite drilling dykes Eastern excavation exposed fault field season fold foliation Formation fractures gabbro geochemical geological mapping geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold mineralisation Gondwana grade grained granite granite gneiss granulite grey Group of rocks INDEX indicated intersected intrusives joints Karnataka kimberlite laterite limestone lineaments lithounits located magnetic magnetite migmatite mineral NE-SW NW-SE occur Orissa pegmatite phyllite power house Project proposed pyrite quartz quartz veins quartzite Quaternary regional reservoir river rock types samples sandstone scale schist schist belt schistose sedimentary shale shear zone Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment strike length structures sulphide Tamil Nadu thick tion toposheet traverse trench trending tunnel ultramafic upto valley volcanics West Bengal