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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Results 1-3 of 15
Page 27
... clay strata having velocities close to the velocities in sands . In a certain field survey , the dominant frequency of the refractions from the sandy aquifer was 400c / sec . while that from the clay was only 200 c / sec . On the basis ...
... clay strata having velocities close to the velocities in sands . In a certain field survey , the dominant frequency of the refractions from the sandy aquifer was 400c / sec . while that from the clay was only 200 c / sec . On the basis ...
Page 70
... clay . This thrust was expected to crop out at a distance of 3 to 5 km . down- stream of the Beas dam site , where the exposure is covered under a mantle of recent river gravel deposit . A geophysical survey was undertaken to delineate ...
... clay . This thrust was expected to crop out at a distance of 3 to 5 km . down- stream of the Beas dam site , where the exposure is covered under a mantle of recent river gravel deposit . A geophysical survey was undertaken to delineate ...
Page 72
... clay beds to a depth of 3 to 10 m . Geophysical investigations were also conducted in the Koti terrace to estimate the thickness of the clay zones in the terrace deposits for an assessment of the impervious core material available at ...
... clay beds to a depth of 3 to 10 m . Geophysical investigations were also conducted in the Koti terrace to estimate the thickness of the clay zones in the terrace deposits for an assessment of the impervious core material available at ...
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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Common terms and phrases
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