Records of the Geological Survey of India, Volume 103The Survey, 1971 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 50
Geological Survey of India. studies such as mapping the concealed topography of the bed rock , which is an indirect means of locating favourable areas for groundwater . The peninsula is occupied largely by Archaean rocks and other pre ...
Geological Survey of India. studies such as mapping the concealed topography of the bed rock , which is an indirect means of locating favourable areas for groundwater . The peninsula is occupied largely by Archaean rocks and other pre ...
Page 64
... bed rock as large as 120 m . and above , in the mid section of the Dhauj and Kot valleys . Plate - 1 presents the bed rock contour plan of the Dhauj valley section . A borehole , drilled to a depth of about 81 m . in the downstream ...
... bed rock as large as 120 m . and above , in the mid section of the Dhauj and Kot valleys . Plate - 1 presents the bed rock contour plan of the Dhauj valley section . A borehole , drilled to a depth of about 81 m . in the downstream ...
Page 73
... bed- rock depth was estimated seismically , there being a significant velocity contrast between the bed rock ( 3,500 to 4,200 m / s ) , and the clay / gravel zone ( 1,200 to 1,800 m / s ) . E. Investigations of elastic properties of rocks ...
... bed- rock depth was estimated seismically , there being a significant velocity contrast between the bed rock ( 3,500 to 4,200 m / s ) , and the clay / gravel zone ( 1,200 to 1,800 m / s ) . E. Investigations of elastic properties of rocks ...
Contents
OF | 1 |
Geophysical Problems and Methods by L | 14 |
Mining Geophysics by P C Paul Y R Bhanu | 31 |
Copyright | |
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airborne alluvium anomaly zones Archaean basin Bihar borehole buried channels Cambay causative body chalcopyrite chromite clay coal seams conductive zones conductor corroborated curves Deccan traps delineated deposits depth Dhauj and Kot district electrical logging electrical resistivity fault field formations frequency G. S. I. report geological mapping Geological Survey Geophysical investigations geophysical logging geophysical methods geophysical surveys gneisses Gondwana graphite gravity groundwater groundwater exploration high resistive horizons in-phase indicated Indo-Gangetic plains Induced Polarisation Kailasam layers limestone locating log trace magnetic anomalies magnetic method magnetic surveys magnetometers mineralised zones minerals Mining Geophysics Nair negative S. P. ohm-m overburden phyllites Pradesh problem profiles quartzites radioactivity Rajasthan refraction seismic resistivity method resistivity values S. P. anomalies sandstones schists sedimentary sediments seismic method seismic refraction self-potential anomalies shales structural studies Subathu subsurface sulphide surface Survey of India surveys were carried terrace deposits Test drilling thickness tion velocity