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 11
... river and further eastward from Cambay to the Mahe river . A clear reflection was recorded with a two - way time of 0.4 second at the Dholera borehole from the top of the trap at a depth of 335 m . and this reflection could be followed ...
... river and further eastward from Cambay to the Mahe river . A clear reflection was recorded with a two - way time of 0.4 second at the Dholera borehole from the top of the trap at a depth of 335 m . and this reflection could be followed ...
Page 70
... river gravel deposit . A geophysical survey was undertaken to delineate the exact disposition of this thrust in the river section . The ultimate objective was to ascertain the depth of the thrust plane below the dam , by projecting the ...
... river gravel deposit . A geophysical survey was undertaken to delineate the exact disposition of this thrust in the river section . The ultimate objective was to ascertain the depth of the thrust plane below the dam , by projecting the ...
Page 71
... river ( Pl . 3 . Fig . 1 ) the soundings made at two favourable sites on the hill slopes could detect the Subathus at depths of 51 m . and 93 m . The sounding curve for the latter along with the geophysical log is presented in Plate 3 ...
... river ( Pl . 3 . Fig . 1 ) the soundings made at two favourable sites on the hill slopes could detect the Subathus at depths of 51 m . and 93 m . The sounding curve for the latter along with the geophysical log is presented in Plate 3 ...
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