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 18
Page 32
... area , the self - potential surveys brought out two anomaly zones with a discontinuity in between them , trending in an approximately N.E.-S.W. direction and extending over a strike length of about 1.5 km . The depths to the causative ...
... area , the self - potential surveys brought out two anomaly zones with a discontinuity in between them , trending in an approximately N.E.-S.W. direction and extending over a strike length of about 1.5 km . The depths to the causative ...
Page 38
... zone of shearing . Electromagnetic anomalies were obtained near the S. P. anomaly zones , especially in the central portion of the old workings , indicating the presence of moderately good con- ductor at depth . To the west and north of ...
... zone of shearing . Electromagnetic anomalies were obtained near the S. P. anomaly zones , especially in the central portion of the old workings , indicating the presence of moderately good con- ductor at depth . To the west and north of ...
Page 39
... anomaly zones , corroborated at places by magnetic and electromagnetic data , were delinea- ted in detail . Significant geophysical anomalies were observed in a part of the area where mineralisation had already been proved . In view of ...
... anomaly zones , corroborated at places by magnetic and electromagnetic data , were delinea- ted in detail . Significant geophysical anomalies were observed in a part of the area where mineralisation had already been proved . In view of ...
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