Records of the Geological Survey of India, Volume 129, Part 5Government of India, 1994 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 185
... side , the foliation / joints dip at 70 ° and trend 15 ° to 45 ° askew to the tunnel direction . Besides the above ... sides packed by rubble . Subsequent to the collapse at Ch 464 m , the entire length of the tunnel was reexamined to ...
... side , the foliation / joints dip at 70 ° and trend 15 ° to 45 ° askew to the tunnel direction . Besides the above ... sides packed by rubble . Subsequent to the collapse at Ch 464 m , the entire length of the tunnel was reexamined to ...
Page 187
... side , one at the saddle and 5 boreholes at the exit side were suggested . 75 50 25 INLET PORTAL 1790 75 50 29 80 28 2240 2690 INDEX @ 8087 + 75m 26 30 75 100 120m 50 + 2040 PROPOSED TUNNEL バーズ I PROPOSED TUNNEL + SOIL , SCREE & HILL ...
... side , one at the saddle and 5 boreholes at the exit side were suggested . 75 50 25 INLET PORTAL 1790 75 50 29 80 28 2240 2690 INDEX @ 8087 + 75m 26 30 75 100 120m 50 + 2040 PROPOSED TUNNEL バーズ I PROPOSED TUNNEL + SOIL , SCREE & HILL ...
Page 194
... side of penstock line had met overburden down to 19.90m and fresh rock level at 22.15 m depth . The borehole- 3 which was drilled at about 75 m towards upslope on the right side of penstock line had met overburden upto depth of 24.0 m ...
... side of penstock line had met overburden down to 19.90m and fresh rock level at 22.15 m depth . The borehole- 3 which was drilled at about 75 m towards upslope on the right side of penstock line had met overburden upto depth of 24.0 m ...
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Common terms and phrases
acid volcanics amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH anomaly zones anorthosite assessment auriferous banded iron formation beach ridges bedrock beds BIF bands biotite biotite gneiss block boreholes carried charnockite chert Chitradurga clay delineated deposits depth Dharwar dips dolerite drilling dykes east eastern emplaced ENE-WSW excavated exposed field season folds foliation foundation gabbro geochemical GEOLOGICAL MAP geophysical geotechnical investigations gneiss Gneissic gold mineralisation granite gneiss granulite gravity grey grout hornblende INDEX indicated intrusives joints KARNATAKA KERALA kimberlite laterite lignite limestone lineament located mafic magnetic metabasalt migmatites mineral mineralised zones NE-SW NNW-SSE NW-SE occur overburden pegmatite Plate power house PROJECT pyrite quartz quartz veins quartzite regional reservoir river rock types samples scale schist belt schistose sediments shear zone slope soil southern spillway sq km strike length structural studies sulphides surveys TAMIL NADU thickness traversed trenching trending tunnel ultramafic upto vertical weathered width