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
... clay and dark grey to bluish grey silty clay with occasional fine sand laminations and bivalves and decomposed vegetative matter . The present day flood plain of Haldi and Hugli rivers is characterised by unoxidised loose , grey , fine ...
... clay and dark grey to bluish grey silty clay with occasional fine sand laminations and bivalves and decomposed vegetative matter . The present day flood plain of Haldi and Hugli rivers is characterised by unoxidised loose , grey , fine ...
Page 14
... Clay Formation Tipam Sandstone Formation Miocene Bokabil Formation Surma Group Bhuban Formation Oligocene Barail Lithology Semi consolidated to unconsolidated pebble - boulder bed . Dominantly thick bedded mottled clay with rare ...
... Clay Formation Tipam Sandstone Formation Miocene Bokabil Formation Surma Group Bhuban Formation Oligocene Barail Lithology Semi consolidated to unconsolidated pebble - boulder bed . Dominantly thick bedded mottled clay with rare ...
Page 21
... clay layer / gully and bank erosion . Hojai Surcace ( T , ) ( Holocene ) Bakalia Surface ( T2 ) ( Pleistocene ) Grey sand , silt , clay / Frequent flooding . Greyish brown plastic clay , sandy clay , calcareous concretions occasionally ...
... clay layer / gully and bank erosion . Hojai Surcace ( T , ) ( Holocene ) Bakalia Surface ( T2 ) ( Pleistocene ) Grey sand , silt , clay / Frequent flooding . Greyish brown plastic clay , sandy clay , calcareous concretions occasionally ...
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