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 23
... identified by scanning more than sixty locali- ties , appear to be geologically suitable for exploita- tion . The parameters studied are colour , texture , geo- morphology , degree of weathering / alteration , presence or absence of ...
... identified by scanning more than sixty locali- ties , appear to be geologically suitable for exploita- tion . The parameters studied are colour , texture , geo- morphology , degree of weathering / alteration , presence or absence of ...
Page 92
... identified and mapped , attention has been drawn to seepage from below the Tista barrage and embankment along the west bank of the river which could jeopardise the safety of Jalpaiguri town . As part of an effort to prepare a classified ...
... identified and mapped , attention has been drawn to seepage from below the Tista barrage and embankment along the west bank of the river which could jeopardise the safety of Jalpaiguri town . As part of an effort to prepare a classified ...
Page 112
... identified by the close - spaced fracturing of rocks ( unit 3a ) south of the ring like structure . This volcanic vent ( ? ) therefore , appears to be located at the intersection of an E - W lineament with the NNW- SSE trending ...
... identified by the close - spaced fracturing of rocks ( unit 3a ) south of the ring like structure . This volcanic vent ( ? ) therefore , appears to be located at the intersection of an E - W lineament with the NNW- SSE trending ...
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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Common terms and phrases
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