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 7
... surface . The compo- nents of the VLF horizontal magnetic and electric fields which are in phase and quadrature with ... surface Geophysical methods : While the air- borne magnetometer is widely used for geological mapping over extensive ...
... surface . The compo- nents of the VLF horizontal magnetic and electric fields which are in phase and quadrature with ... surface Geophysical methods : While the air- borne magnetometer is widely used for geological mapping over extensive ...
Page 56
... surface cross sections along four of the seismic profiles are given in Plate - 3 . Artesian to subartesian conditions are known to prevail in the Gondwana basin delineated geophysically and the latter should therefore be of con ...
... surface cross sections along four of the seismic profiles are given in Plate - 3 . Artesian to subartesian conditions are known to prevail in the Gondwana basin delineated geophysically and the latter should therefore be of con ...
Page 70
... surface . This information was sought in connection with the evaluation of the seismic factor in the design of the dam . Surface resistivity measurements indicated a high resistivity value for the river gravel ( 4,800 ohm - m . ) , sand ...
... surface . This information was sought in connection with the evaluation of the seismic factor in the design of the dam . Surface resistivity measurements indicated a high resistivity value for the river gravel ( 4,800 ohm - m . ) , sand ...
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