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
... indicate that a thick clay blanket exist down to a depth of 130 m bg1 with occasional 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 ...
... indicate that a thick clay blanket exist down to a depth of 130 m bg1 with occasional 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 ...
Page 38
... indicates that quality of ground water became slightly inferior during summer . Available chemical data indicate that there is no significant pollution detected in air , ground water and soil . However , high BOD values ( 10-20 ppm ) in ...
... indicates that quality of ground water became slightly inferior during summer . Available chemical data indicate that there is no significant pollution detected in air , ground water and soil . However , high BOD values ( 10-20 ppm ) in ...
Page 189
... indicate that the manganese deposits are syngenetic ( Koduritic type and later remobilised along fractures , foliation , shear planes and fold closures supergene enrichment also played an important part in manganese concentration mainly ...
... indicate that the manganese deposits are syngenetic ( Koduritic type and later remobilised along fractures , foliation , shear planes and fold closures supergene enrichment also played an important part in manganese concentration mainly ...
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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Common terms and phrases
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