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 20
... boreholes ( DND - 4 , 5 , 6 , 7 ) have been con- tinued during FS 1994-95 ( Plate - 9 ) . The boreholes DND - 1 , 4 and 5 drilled at 100 m strike interval in the eastern segment have intersected apatite bearing zones at the vertical ...
... boreholes ( DND - 4 , 5 , 6 , 7 ) have been con- tinued during FS 1994-95 ( Plate - 9 ) . The boreholes DND - 1 , 4 and 5 drilled at 100 m strike interval in the eastern segment have intersected apatite bearing zones at the vertical ...
Page 189
... boreholes along 8 sections , namely N - 1 , N - 2 , 0-0 , S - 1 , S - 2 , S - 3 , S - 4 and S - 5 spaced 100 m apart along E - W direction ,. 645 core samples , 165 cu.m of pitting and trenching , 0.25 sq.km detailed mapping on 1 ...
... boreholes along 8 sections , namely N - 1 , N - 2 , 0-0 , S - 1 , S - 2 , S - 3 , S - 4 and S - 5 spaced 100 m apart along E - W direction ,. 645 core samples , 165 cu.m of pitting and trenching , 0.25 sq.km detailed mapping on 1 ...
Page 10
... borehole No. LV - 1 in the North and LV - 3 in the South ( Fig - 1 ) by drilling 24 boreholes spaced approximately at 300m interval and drilling was completed in November . 1994. The grade of limestone intersected in the boreholes is ...
... borehole No. LV - 1 in the North and LV - 3 in the South ( Fig - 1 ) by drilling 24 boreholes spaced approximately at 300m interval and drilling was completed in November . 1994. The grade of limestone intersected in the boreholes is ...
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