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 52
... depth of foundation grade bed rock varies from 1.40 m to 3.80 m only . At the alternative site the thickness of overburden varies from 1.0 m to 4.50 m and the foundation grade fresh rock depth varies from 2.15 m to 6.55 m . The bed rock ...
... depth of foundation grade bed rock varies from 1.40 m to 3.80 m only . At the alternative site the thickness of overburden varies from 1.0 m to 4.50 m and the foundation grade fresh rock depth varies from 2.15 m to 6.55 m . The bed rock ...
Page 152
... depth of 180.00m . It has intersected the silicified quartzite between the depths of 22.40 m to 34.60 m . Chemical analysis of core samples of Borehole no . BKB - 1 by AAS method so far available revealed that the silicified quartzite ...
... depth of 180.00m . It has intersected the silicified quartzite between the depths of 22.40 m to 34.60 m . Chemical analysis of core samples of Borehole no . BKB - 1 by AAS method so far available revealed that the silicified quartzite ...
Page 227
... depth varies from 4.5m ( SBH - 18 ) to 15m ( SBH - 17 ) . The foundation rock - type is mainly basic charnockite . A fresh rock contour map of the proposed spillway site has been developed on the ba- sis of limited borehole data which ...
... depth varies from 4.5m ( SBH - 18 ) to 15m ( SBH - 17 ) . The foundation rock - type is mainly basic charnockite . A fresh rock contour map of the proposed spillway site has been developed on the ba- sis of limited borehole data which ...
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