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 11
... depth of the order of 2450-2600 m . to the trap basement in the immediate neighbourhood of Cambay . A continuous reflection seismic traverse was run from Dholera on the western margin of the basin where trap rock had been struck at a depth ...
... depth of the order of 2450-2600 m . to the trap basement in the immediate neighbourhood of Cambay . A continuous reflection seismic traverse was run from Dholera on the western margin of the basin where trap rock had been struck at a depth ...
Page 44
... Depth estimates carried out for the various S. P. anomalies indi- cated large extension of the bodies in depth ; the depth values agreed well with the drilling data . Geophysical investigations employing mainly self - potential method ...
... Depth estimates carried out for the various S. P. anomalies indi- cated large extension of the bodies in depth ; the depth values agreed well with the drilling data . Geophysical investigations employing mainly self - potential method ...
Page 84
... depth of 80 m . , and a corresponding increase in radioactivity from this depth down to the bottom of the borehole . A stratigraphic / structural / geochemical break is anticipated at this depth . Mineralisation , is present in highly ...
... depth of 80 m . , and a corresponding increase in radioactivity from this depth down to the bottom of the borehole . A stratigraphic / structural / geochemical break is anticipated at this depth . Mineralisation , is present in highly ...
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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Common terms and phrases
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