Records of the Geological Survey of India, Volume 122, Parts 6-7Government of India, 1987 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 137
... tunnel and water conductor system alignments have been outlined . It has also been suggested to explore the possibility of steepening the approach tunnel gradient within the designed permisible limit to shorten its length . The Ajanta ...
... tunnel and water conductor system alignments have been outlined . It has also been suggested to explore the possibility of steepening the approach tunnel gradient within the designed permisible limit to shorten its length . The Ajanta ...
Page 146
... tunnel will be in the basalt ( RL 927.04-925.28 m ) . Above the crown level of the tunnel , 10 to 11 m of fresh rock cover is anticipated and hence considered safe for underground excavations . Interpretation of cores of holes T - 2 to ...
... tunnel will be in the basalt ( RL 927.04-925.28 m ) . Above the crown level of the tunnel , 10 to 11 m of fresh rock cover is anticipated and hence considered safe for underground excavations . Interpretation of cores of holes T - 2 to ...
Page 155
... tunnel alignment have indicated dense basalt along the proposed tunnel grade from KRL 592.90-602.90 m . Further 19.84 m fresh basalt cover is available above the proposed crown . In the 1.5 km section passing partly below the Koyna ...
... tunnel alignment have indicated dense basalt along the proposed tunnel grade from KRL 592.90-602.90 m . Further 19.84 m fresh basalt cover is available above the proposed crown . In the 1.5 km section passing partly below the Koyna ...
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Common terms and phrases
Aa flow aeolian alignment alluvium amphibolite anomaly zone bands basalt flows basin bed rock block borehole calcareous carried chert clay compound pahoehoe comprises conglomerate cores covered Deccan basalt Deccan Trap deposits depth dips district dolomite dykes ENE-WSW Engineering Geology Division exposed fault folds Formation fractured fresh basalt geochemical geological mapping Geologist Jr geophysical GEOTECHNICAL INVESTIGATION gneiss Gondwana gradient granite Group indicated intruded Jahazpur joints km² laterite limestone located MADHYA PRADESH MADHYA PRADESH Code MAHARASHTRA medium grained metasediments mica schist mineralisation moderately porphyritic Nagpur Narmada NE-SW NW-SE occur pahoehoe pegmatites phyllite porphyritic proposed Proterozoic quartz veins quartzite Quaternary Raipur Rajasthan red bole Regional Geology Division reservoir river samples sand sandstone scale schist sediments sequence shale shear zone sparsely porphyritic spillway sq km strike length stromatolitic subsurface exploration Supergroup surveys thick toposheet traversed trending tunnel Udaipur district Unconformity upper upto Vindhyan volcanics के