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 32
... causative body ranged from 38 to 46 m . About 60 to 90 m . to the east of the S. P. anomaly , a magnetic anomaly axis was delineated having a definite trend parallel to the S. P. anomaly zones , and indicating no discontinuity in the ...
... causative body ranged from 38 to 46 m . About 60 to 90 m . to the east of the S. P. anomaly , a magnetic anomaly axis was delineated having a definite trend parallel to the S. P. anomaly zones , and indicating no discontinuity in the ...
Page 38
... causative bodies , possibly indicative of mineralised lenses within a zone of shearing . Electromagnetic anomalies were obtained near the S. P. anomaly zones , especially in the central portion of the old workings , indicating the ...
... causative bodies , possibly indicative of mineralised lenses within a zone of shearing . Electromagnetic anomalies were obtained near the S. P. anomaly zones , especially in the central portion of the old workings , indicating the ...
Page 44
... causative body is fairly deep seated and possibly has good extension in depth . The investi- gations as also subsequent drilling over three of the anomalies revealed that graphite occurs at a shallow depth in the western part of the ...
... causative body is fairly deep seated and possibly has good extension in depth . The investi- gations as also subsequent drilling over three of the anomalies revealed that graphite occurs at a shallow depth in the western part of 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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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