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 3
... magnetic and seismic surveys may profitably be carried out As stated earlier , the crystalline rocks of the igneous and metamorphic basement have much higher magnetic susceptibi- lity than the superincumbent sedimentary rocks . Such ...
... magnetic and seismic surveys may profitably be carried out As stated earlier , the crystalline rocks of the igneous and metamorphic basement have much higher magnetic susceptibi- lity than the superincumbent sedimentary rocks . Such ...
Page 16
... Magnetic anomalies vary from a few tens or hundreds of gammas in the case of base metal exploration to a few ... surveys by the G.S.I has been carried out by vertical force and horizontal force magnetic balances . With the introduc- tion of ...
... Magnetic anomalies vary from a few tens or hundreds of gammas in the case of base metal exploration to a few ... surveys by the G.S.I has been carried out by vertical force and horizontal force magnetic balances . With the introduc- tion of ...
Page 42
... magnetic surveys brought out a couple of interesting gravity anomalies . Manganese Geophysical surveys using mainly the magnetic method , coupled with the electrical methods at places , were carried out for manganese ores in the Tirodi ...
... magnetic surveys brought out a couple of interesting gravity anomalies . Manganese Geophysical surveys using mainly the magnetic method , coupled with the electrical methods at places , were carried out for manganese ores in the Tirodi ...
Contents
RECORDS | 1 |
Geophysical Problems and Methods by L | 16 |
Mining Geophysics by P C Paul Y R Bhanu | 31 |
Copyright | |
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airborne alluvium anomaly zones Archaean 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 dolomite electrical logging electrical resistivity fault field formations frequency G. S. I. report geological mapping Geological Survey Geophysical investigations geophysical logging geophysical methods geophysical parties led geophysical surveys gneisses Gondwana graphite gravity groundwater groundwater exploration high resistive horizons in-phase indicated Indo-Gangetic plains Induced Polarisation Kailasam layer limestone locating log trace magnetic anomalies magnetic method magnetic surveys mineralised zone minerals Mining Geophysics negative S. P. ohm-m overburden phyllites Pradesh problem profiles quartzites radioactivity Rajasthan refraction seismic resistivity method resistivity surveys S. P. anomalies saline sandstones schists sedimentary sediments seismic method seismic refraction self-potential anomalies shales structural studies Subathu subsurface sulphide Survey of India surveys were carried terrace deposits Test drilling thickness tion velocity