Records of the Geological Survey of India, Volume 104The Survey, 1972 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 236
... holes drilled along the alignment , fresh rock has not been touched down to a depth of 15.24 m . in eleven holes . Fresh rock has been encountered in the remaining ten holes at depths of 0.60-9.14 m . Chowdhury has recommended putting ...
... holes drilled along the alignment , fresh rock has not been touched down to a depth of 15.24 m . in eleven holes . Fresh rock has been encountered in the remaining ten holes at depths of 0.60-9.14 m . Chowdhury has recommended putting ...
Page 237
... holes put down along the dam axis , fresh and hard rock has been encountered in four drill holes at depths of 0.90-5.79 m . Hard rock has not been encountered in the other two drill holes . Chowdhury has suggested an alternative ...
... holes put down along the dam axis , fresh and hard rock has been encountered in four drill holes at depths of 0.90-5.79 m . Hard rock has not been encountered in the other two drill holes . Chowdhury has suggested an alternative ...
Page 443
... holes should be as close as 1.5— 2 m . The necessity for at least two confirmatory drill holes in each block to determine the occurrence of clay seams , flagstone beds and other weak zones was stressed . Remedial measures to prevent ...
... holes should be as close as 1.5— 2 m . The necessity for at least two confirmatory drill holes in each block to determine the occurrence of clay seams , flagstone beds and other weak zones was stressed . Remedial measures to prevent ...
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abutment alignment alluvial alluvium amphibolite Andhra Pradesh aquifers Assam bands basalt basin bauxite Bihar block boreholes carried chalcopyrite charnockite clay Coalfield construction Dam Project Deccan Trap deposits depth dips district Division dolerite dolomite drill holes dykes earth dam Engineering Geology excavation exploration fault folded foliation Formation foundation geochemical geohydrological Geol geological mapping Geological Survey Geologists Jr Geophysical Ghosh gneiss Gondwana grade granite gneiss graphite groundwater grouting Gujarat hard rock Hydel Project indicated investigation irrigation joints Laboratory laterite limestone located logging Madhya Pradesh metres million tonnes mineralisation minerals Mysore occur Orissa pegmatite phosphorite phyllites power house pyrite quartz veins quartzite Rajasthan Region reservoir rock types S/Shri samples sand sandstone scale schist seams sediments shales shear zones Shri Singh Siwaliks spillway strike length structure studies Survey of India taluk thick tion trending tubewells tunnel Udaipur district upto Uttar Pradesh valley varies Vindhyan weathered West Bengal