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 6
... 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 Tyrsat . Twelve and thirtythree stream ...
... 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 Tyrsat . Twelve and thirtythree stream ...
Page 7
... values less than 50 ppm ; and Zn values from less than 10 to 120 ppm . The data was processed statistically and two anomalous linear zones / lines are identified for Zn values as per detail given below : 1. 1km long linear anomaly ( Zn > ...
... values less than 50 ppm ; and Zn values from less than 10 to 120 ppm . The data was processed statistically and two anomalous linear zones / lines are identified for Zn values as per detail given below : 1. 1km long linear anomaly ( Zn > ...
Page 25
... values . Nickel All values are 20 ppm . Only four analyses show values of 20 ppm . Cadmium : All values are less than 5 ppm . Keeping in view the discouraging analytical results , the investigation is discontinued . GSI Rec . Vol . 129 ...
... values . Nickel All values are 20 ppm . Only four analyses show values of 20 ppm . Cadmium : All values are less than 5 ppm . Keeping in view the discouraging analytical results , the investigation is discontinued . GSI Rec . Vol . 129 ...
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