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 55
... regional and inter - regional correlation ) , geological history and mineral prospect of Tethyan deposits in Sikkim Himalaya . Tethyan sediments measuring a huge thickness of about 3730 m dipping gently towards north have been ...
... regional and inter - regional correlation ) , geological history and mineral prospect of Tethyan deposits in Sikkim Himalaya . Tethyan sediments measuring a huge thickness of about 3730 m dipping gently towards north have been ...
Page 90
... Regional gravity and magnetic surveys in continu- ation of the last field season's work were done over an area bounded by latitudes 24 ° - 25 ° N and longitudes 86 ° 15 ' - 87 ° 00'E . The Survey has covered 2140 sq . km . ) involving ...
... Regional gravity and magnetic surveys in continu- ation of the last field season's work were done over an area bounded by latitudes 24 ° - 25 ° N and longitudes 86 ° 15 ' - 87 ° 00'E . The Survey has covered 2140 sq . km . ) involving ...
Page 132
... regional stream sediment analysis of Ichak - Bishnupur sec- tor covering an area of 350 sq . km . In view of recent basemetal finding at SE of Jamuniya ( 72H / 16 ) , an additional 75 sq km area adjoining the said prospect has been also ...
... regional stream sediment analysis of Ichak - Bishnupur sec- tor covering an area of 350 sq . km . In view of recent basemetal finding at SE of Jamuniya ( 72H / 16 ) , an additional 75 sq km area adjoining the said prospect has been also ...
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