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 2
... formations often afford a subs- tantial contrast in their physical properties which can be utilised to study the lateral extensions of the formations under cover and to delineate their boundaries and contacts . For instance ...
... formations often afford a subs- tantial contrast in their physical properties which can be utilised to study the lateral extensions of the formations under cover and to delineate their boundaries and contacts . For instance ...
Page 50
... formations . Next in importance to these , there are Deccan traps that pose a special challenge to the geophysicist . The Gondwanas occur in isolated troughs within the Archaeans . Along the Coromandel coast and part of the Malabar ...
... formations . Next in importance to these , there are Deccan traps that pose a special challenge to the geophysicist . The Gondwanas occur in isolated troughs within the Archaeans . Along the Coromandel coast and part of the Malabar ...
Page 73
... formations involved . The clay layer ( 25 to 80 ohm - m . ) at the top was indicated to have an average thickness of 4 to 5 m . , although thickness upto 10 to 12 m . was also indicated in certain zones . The bed- rock depth was ...
... formations involved . The clay layer ( 25 to 80 ohm - m . ) at the top was indicated to have an average thickness of 4 to 5 m . , although thickness upto 10 to 12 m . was also indicated in certain zones . The bed- rock depth was ...
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