Records of the Geological Survey of India, Volume 129, Parts 2-3The Survey, 1994 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 107
... magnetic susceptibility / distance ratio in the range of 150 to 200 nT / km and short E - W magnetic breaks indicating strike faults within the sequence . The boundary faults of the sequence against the base- ment are also depicted by ...
... magnetic susceptibility / distance ratio in the range of 150 to 200 nT / km and short E - W magnetic breaks indicating strike faults within the sequence . The boundary faults of the sequence against the base- ment are also depicted by ...
Page 136
... magnetic zones based on the shape , size , orientation , intensity , gradient and amplitude of magnetic contours . The main causative sources for magnetic anomalies in the area are the hetero- geneous nature of geological formation with ...
... magnetic zones based on the shape , size , orientation , intensity , gradient and amplitude of magnetic contours . The main causative sources for magnetic anomalies in the area are the hetero- geneous nature of geological formation with ...
Page 8
... magnetic surveys in continu- ation of the last field season's work were done over an area bounded by latitudes 24 ° - 25 ° N and longitudes 86 ° 15 ' - 87 ° 00'E . The Survey has covered 2140 sq . km . ) involving 1065 gravity and 1015 ...
... magnetic surveys in continu- ation of the last field season's work were done over an area bounded by latitudes 24 ° - 25 ° N and longitudes 86 ° 15 ' - 87 ° 00'E . The Survey has covered 2140 sq . km . ) involving 1065 gravity and 1015 ...
Contents
Stratigraphy Division | 11 |
Central Petrological Laboratories | 26 |
Geodata and Database Division | 43 |
Copyright | |
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acid volcanics aeromagnetic amphibolite analysis anomaly bands Barakar Barakar Formation Barren Measure basemetal basin belt Bihar biotite block boreholes charnockite Chhotanagpur clay coal seams Coalfield coarse Code core covered depth district Division drilling dykes east eastern faults field season foliation geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION Ghosh gneiss gneissic gold Gondwana grade grained granite granite gneiss grey ground evaluation heavy minerals India indicated intersected intrusives Kamthi laterite limestone lineament located Madhya Pradesh magnetic mica schist migmatite mineralisation NW-SE occur Orissa OVERVIEW pegmatite phyllite plagioclase Pradesh programme Project Proterozoic Purulia Purulia district quartz quartz veins quartzite Raniganj REGIONAL EXPLORATION river samples sand sandstone scale schist seam zones sector sediments sequence shale shear zone Sikkim Singhbhum soil sq km sq.km STAGE GEOTECHNICAL INVESTIGATION strike length structure sulphide survey Talchir terrain thickness tion Toposheet trending ultramafic upto varies West Bengal