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 16
... magnetic and electro- magnetic methods have been mostly employed for exploration for metallic minerals while the electrical resistivity and the refraction seismic methods ( supplemented by the reflection seismic method for basin studies ) ...
... magnetic and electro- magnetic methods have been mostly employed for exploration for metallic minerals while the electrical resistivity and the refraction seismic methods ( supplemented by the reflection seismic method for basin studies ) ...
Page 41
... method was mostly used ; magnetic and electrical resistivity methods were also employed to supplement the gravity data . Due to the highly variable magnetic susceptibility of laterite and ultrabasics , the magnetic survey was not ...
... method was mostly used ; magnetic and electrical resistivity methods were also employed to supplement the gravity data . Due to the highly variable magnetic susceptibility of laterite and ultrabasics , the magnetic survey was not ...
Page 42
... magnetic method , coupled with the electrical methods at places , were carried out for manganese ores in the Tirodi ... magnetic , which enabled their location by the magnetic method even under thick soil cover . The magnetic anomalies ...
... magnetic method , coupled with the electrical methods at places , were carried out for manganese ores in the Tirodi ... magnetic , which enabled their location by the magnetic method even under thick soil cover . The magnetic anomalies ...
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