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 64
... samples were analysed for Ni . Out of these , 21 samples from semidecomposed bed rock and one from the eluvial soil collected from the metaperidotite exposed around Chouldari show Ni incidence ranging from 0.32 to 2.41 % with samples ...
... samples were analysed for Ni . Out of these , 21 samples from semidecomposed bed rock and one from the eluvial soil collected from the metaperidotite exposed around Chouldari show Ni incidence ranging from 0.32 to 2.41 % with samples ...
Page 160
... samples were collected for processing and geotechnical studies to ascertain their commercial suitability ( Plate - 56 ) . For petrologi- cal studies 25 samples were collected fo find out their degree of freshness and mineral composition ...
... samples were collected for processing and geotechnical studies to ascertain their commercial suitability ( Plate - 56 ) . For petrologi- cal studies 25 samples were collected fo find out their degree of freshness and mineral composition ...
Page 6
... samples out of 38 show 0.1 ppm gold value , remaining all values are less than 0.1 ppm . A sample showing 0.4 ppm gold value , lies side the shear zone . Two samples out of 12 show 0.1 ppm value for gold within the shear zone near ...
... samples out of 38 show 0.1 ppm gold value , remaining all values are less than 0.1 ppm . A sample showing 0.4 ppm gold value , lies side the shear zone . Two samples out of 12 show 0.1 ppm value for gold within the shear zone near ...
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