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 10
... Shale Formation . The limestone belonging to upper Sylhet Member ( Prang ) of Shella Formation is underlain by Therria Sandstone For- mation and overlain conformably by shale and sandstone of Kopili Formation . The limestone is a bedded ...
... Shale Formation . The limestone belonging to upper Sylhet Member ( Prang ) of Shella Formation is underlain by Therria Sandstone For- mation and overlain conformably by shale and sandstone of Kopili Formation . The limestone is a bedded ...
Page 17
... shale . Ferruginous sandstone alternat- ing with khaki green shale and rare greyish - white nummulitic limestone . Sylhet Massive grey and pink fer- Sandstone ruginous sandstone highly Formation weathered and oxidised . -Unconformity ...
... shale . Ferruginous sandstone alternat- ing with khaki green shale and rare greyish - white nummulitic limestone . Sylhet Massive grey and pink fer- Sandstone ruginous sandstone highly Formation weathered and oxidised . -Unconformity ...
Page 30
... shale , siltstone and silty shale with interbeds of sandstone and carbonaceous shale . -Gradational Contact- Barail Group ( Oligocene ) Laisong Formation Massive , multistoreyed , medium grained , grey sandstone interbedded with sandy shale ...
... shale , siltstone and silty shale with interbeds of sandstone and carbonaceous shale . -Gradational Contact- Barail Group ( Oligocene ) Laisong Formation Massive , multistoreyed , medium grained , grey sandstone interbedded with sandy shale ...
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