Records of the Geological Survey of India, Volume 127, Parts 3-4Government of India, 1992 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 98
... grey silty clay containing calcareous and ferrugi- nous concretions . The Chinsura formation is repre- sented by feebly oxidised to unoxidised light grey to light brown fine sand , silt and clay devoid of any calcareous and ferruginous ...
... grey silty clay containing calcareous and ferrugi- nous concretions . The Chinsura formation is repre- sented by feebly oxidised to unoxidised light grey to light brown fine sand , silt and clay devoid of any calcareous and ferruginous ...
Page 99
... grey sandy silt , soft . 0.40-3.50 Light brownish grey fine sand , cross - bedded poorly compact and unoxidised . 0.00-0.31 0.31-0.41 unoxidised , loose . Mehapal north bank of Subarnarekha River ( 22 ° 14 ' 86 ° 59 ' ; 74 J / 13 ) Light ...
... grey sandy silt , soft . 0.40-3.50 Light brownish grey fine sand , cross - bedded poorly compact and unoxidised . 0.00-0.31 0.31-0.41 unoxidised , loose . Mehapal north bank of Subarnarekha River ( 22 ° 14 ' 86 ° 59 ' ; 74 J / 13 ) Light ...
Page 19
... grey , jasper red , yellowish brown , brown and very dark grey . The grey shale is highly plastic in nature and the dark grey colour is caused by the presence of carbonaceous matter . There is general coarsening of sedi- ments upwards ...
... grey , jasper red , yellowish brown , brown and very dark grey . The grey shale is highly plastic in nature and the dark grey colour is caused by the presence of carbonaceous matter . There is general coarsening of sedi- ments upwards ...
Contents
Chhotanagpur Gneiss | 8 |
Geological mapping and geochomical survey to the south | 15 |
Singhbhum Belt and North Singhbhum Shear Zone | 22 |
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ABSTRACTS OF PROGRESS Aizawl alignment amphibolite Andaman anomaly apatite ARUNACHAL PRADESH Assam bands bank basin bed rock belt Bihar biotite block boreholes Brahmaputra carbonatite chert chlorite chromite clay conglomerate Dalma deposits depth district drilling east Engineering Geology erosion exposed EXTENDED ABSTRACTS faults field season flood plain folds foliation Formation geochemical GEOLOGICAL MAP geophysical geotechnical investigation gneiss gold grained granite gneiss grey Group of rocks GSI Rec INDEX indicated Irrigation Keonjhar LATERITE limestone lithounits located manganese Manipur Meghalaya metasedimentary mica schist mineral nala occur Orissa OVERVIEW phyllite Plate proposed Purulia quartz quartz veins quartzite Quaternary regional river samples sand sandstone scale schist sector sedimentary sequence shale Shear Zone Shillong Sikkim silt siltstone Singhbhum granite slope soil spillway sq km sq.km stage geotechnical investigation structures sulphides Supergroup surface SURVEY OF INDIA thick tion toposheet traverses trending tunnel ultramafic unconformably upto volcanics West Bengal