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 18
... Shale . Laisong Formation Arenaceous , thin bedded sandstone with grey shale in- tercalations . Darkgrey splintery shales with compact sandstone bands -BASE NOT EXPOSED The Disang Group of sediments are confined to a narrow linear belt ...
... Shale . Laisong Formation Arenaceous , thin bedded sandstone with grey shale in- tercalations . Darkgrey splintery shales with compact sandstone bands -BASE NOT EXPOSED The Disang Group of sediments are confined to a narrow linear belt ...
Page 33
... shale , sandstone , sandy shale and alternations of shale and sandstone . Soil / alluvium , gravel beds and hill - wash material of Quaternary age are seen mainly at stream beds and as valley fill . ( Fig 12 ) The tentative ...
... shale , sandstone , sandy shale and alternations of shale and sandstone . Soil / alluvium , gravel beds and hill - wash material of Quaternary age are seen mainly at stream beds and as valley fill . ( Fig 12 ) The tentative ...
Page 128
... shale underlain by dolerite sill is met with in BH - 4 . At the contact of shale and dolerite , the shale shows baking effect whereas the dolerite is highly weathered . Permeability tests conducted at pres- sures of 0.5 , 1.0 and 1.5 kg ...
... shale underlain by dolerite sill is met with in BH - 4 . At the contact of shale and dolerite , the shale shows baking effect whereas the dolerite is highly weathered . Permeability tests conducted at pres- sures of 0.5 , 1.0 and 1.5 kg ...
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