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 15
... mineralisation from Proterozoic volcano - sedimentary rocks . During the in- vestigation , 60 sq km ( 1 : 25000 ) of geological mapping , 161 nos bed rock sampling and petrological studies of 50 samples were carried out covering the ...
... mineralisation from Proterozoic volcano - sedimentary rocks . During the in- vestigation , 60 sq km ( 1 : 25000 ) of geological mapping , 161 nos bed rock sampling and petrological studies of 50 samples were carried out covering the ...
Page 18
... mineralisation within metabasic . Associ- ated with the copper mineralisation , promising gold values have also been recorded . The investigation has been continued during FS 1994-95 . The work achieved during F S 1994-95 includes ...
... mineralisation within metabasic . Associ- ated with the copper mineralisation , promising gold values have also been recorded . The investigation has been continued during FS 1994-95 . The work achieved during F S 1994-95 includes ...
Page 54
... mineralisation was continued during the FS 1994-95 in A - V block of Shergaon area ( Toposheet 83A / 8 ) . West Kameng district , through drilling , section measurement studies , large scale mapping and sampling , A total of 353.25m ...
... mineralisation was continued during the FS 1994-95 in A - V block of Shergaon area ( Toposheet 83A / 8 ) . West Kameng district , through drilling , section measurement studies , large scale mapping and sampling , A total of 353.25m ...
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