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 34
... drilling data . The surveys have in some places delineated a few broad conductive zones . An E. M. anomaly ( -8 % in in - phase and -2 % in quadrature components ) is observed on a profile corresponding to the zone of mineralisation ...
... drilling data . The surveys have in some places delineated a few broad conductive zones . An E. M. anomaly ( -8 % in in - phase and -2 % in quadrature components ) is observed on a profile corresponding to the zone of mineralisation ...
Page 78
... drilling work could not be carried out as the severe drought demanded a crash drilling programme to render immediate relief to the inhabitants of the affected areas . Surface geophysical surveys in a few selected but limited areas did ...
... drilling work could not be carried out as the severe drought demanded a crash drilling programme to render immediate relief to the inhabitants of the affected areas . Surface geophysical surveys in a few selected but limited areas did ...
Page 80
... drilling for coal in the Raniganj coalfield was started by the Geological Survey of India in 1957. The National Coal Development Corporation and the Indian Bureau of Mines joined the exploratory drilling programme subsequently . For the ...
... drilling for coal in the Raniganj coalfield was started by the Geological Survey of India in 1957. The National Coal Development Corporation and the Indian Bureau of Mines joined the exploratory drilling programme subsequently . For the ...
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