Records of the Geological Survey of India, Volume 129, Parts 3-4Government of India, 1994 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 35
... sand lenses . Below this clay several white , grey or brown , moderately well sorted , fine to coarse sand horizons of 5 to 26 m thickness , separated by clay with occasional calcareous nodules occur at different depths ranging down to ...
... sand lenses . Below this clay several white , grey or brown , moderately well sorted , fine to coarse sand horizons of 5 to 26 m thickness , separated by clay with occasional calcareous nodules occur at different depths ranging down to ...
Page 167
... sand and silt with subordinate clay in the flood plain belt while medium to coarse sand with gravel ( granule , pebble , cobble and boulder ) in the piedmont belt . Disconformity Vaishali Surface / Formation ( Older flood plain ) ...
... sand and silt with subordinate clay in the flood plain belt while medium to coarse sand with gravel ( granule , pebble , cobble and boulder ) in the piedmont belt . Disconformity Vaishali Surface / Formation ( Older flood plain ) ...
Page 21
... sand , silt , clay and concretionery nodules / Occasionally flooded . Dhekiajuli Surface ( T ) Brown sand pebble and ( Pleistocene ) gravel with clay layer / gully and bank erosion . Hojai Surcace ( T , ) ( Holocene ) Bakalia Surface ...
... sand , silt , clay and concretionery nodules / Occasionally flooded . Dhekiajuli Surface ( T ) Brown sand pebble and ( Pleistocene ) gravel with clay layer / gully and bank erosion . Hojai Surcace ( T , ) ( Holocene ) Bakalia Surface ...
Contents
WEST BENGAL SIKKIM A N ISLANDS | 1 |
Report of investigation for rare metal mineralisation within pegmatite | 7 |
Gold | 14 |
Copyright | |
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acid volcanics amphibolite Andaman anomaly Arunachal Pradesh Assam bands basemetal basin bed rock belt Bihar biotite block boreholes Chhotanagpur clay Code colour comprising conglomerate covered depth Division drilling dykes east eastern Engineering Geology erosion exploration exposed fault feldspar field season fold foliation Formation geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold Gondwana grade granite granite gneiss granitoids grey Group of rocks GSI Rec Hills district identified intrusives Karbi Anglong laterite limestone lineament lithological located medium grained Meghalaya mica schist migmatites mineralisation minerals nala occurs Orissa OVERVIEW pegmatite phyllite plagioclase Proterozoic Purulia district quartz quartz veins quartzite Quaternary Region river sand sandstone scale schist sector sequence shale Shillong Shillong Group Sikkim siltstone Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment samples structure sulphide Surface SURVEY OF INDIA terrain thick Toposheet trending ultramafic upto West Bengal western