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 147
... bands vary in different sections . In general , the QPC bands noted in the area are lenticular and discontinuous varying from 5m to 2.75 m in length along the strike and 0.50 m to 25 m in width . The cumulative length of the exposed QPC ...
... bands vary in different sections . In general , the QPC bands noted in the area are lenticular and discontinuous varying from 5m to 2.75 m in length along the strike and 0.50 m to 25 m in width . The cumulative length of the exposed QPC ...
Page 149
... bands are not yet available . The heavy concentrates of the primary bulk samples collected from two of the QPC bands showing higher gold values , obtained by the panning of -10 mesh , -60 mesh and -120 mesh fractions also show presence ...
... bands are not yet available . The heavy concentrates of the primary bulk samples collected from two of the QPC bands showing higher gold values , obtained by the panning of -10 mesh , -60 mesh and -120 mesh fractions also show presence ...
Page 10
... bands . It may be equivalent to Umlatodoh Limestone and is overlain conformably by splintery shale , sandstone and a few lenses / bands of marl of Kopili Formation . The Umlatodoh Limestone is underlain by coarse grained sandstone with ...
... bands . It may be equivalent to Umlatodoh Limestone and is overlain conformably by splintery shale , sandstone and a few lenses / bands of marl of Kopili Formation . The Umlatodoh Limestone is underlain by coarse grained sandstone with ...
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