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 28
... lignite . The associated anomalies are often of less than a fifth to a tenth of a milligal in magnitude which in many mineralised areas fall below the noise level due to topographic effects and variation in densities of the complex rock ...
... lignite . The associated anomalies are often of less than a fifth to a tenth of a milligal in magnitude which in many mineralised areas fall below the noise level due to topographic effects and variation in densities of the complex rock ...
Page 46
... lignite beds has been presumably marked by high density older formations as also partly by sub - basement effects . This explains the fact that the residual anomaly attributable to lignite beds is not co - extensive with the known lignite ...
... lignite beds has been presumably marked by high density older formations as also partly by sub - basement effects . This explains the fact that the residual anomaly attributable to lignite beds is not co - extensive with the known lignite ...
Page
... OM . 20 botto antici form , pondi of mi to 60 . tion 1 lignite tory c poten the m been deterr miner been deterr are b field l S. K. pilati RIVER Ľ 120 80 100- AAA References CHATERJI . G. C. 1964. - Single Electrode Logging.
... OM . 20 botto antici form , pondi of mi to 60 . tion 1 lignite tory c poten the m been deterr miner been deterr are b field l S. K. pilati RIVER Ľ 120 80 100- AAA References CHATERJI . G. C. 1964. - Single Electrode Logging.
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