Records of the Geological Survey of India, Volume 125, Part 2The Survey, 1992 - 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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Results 1-3 of 35
Page 122
... Magnetic surveys conducted reveal a fall of 150 nT of magnetic field ( TF ) from coast to Bengal Fan except along lat . 11 ° 20 ' N. In the shelf and slope regions between lat . 10 ° 30 ' and 1.1 ° 40 ' N and long . 80 ° and 80 ° 45 ' E ...
... Magnetic surveys conducted reveal a fall of 150 nT of magnetic field ( TF ) from coast to Bengal Fan except along lat . 11 ° 20 ' N. In the shelf and slope regions between lat . 10 ° 30 ' and 1.1 ° 40 ' N and long . 80 ° and 80 ° 45 ' E ...
Page 305
... magnetic data acquired during 1989-90 covering 9758 line km over Siliguri- Tezpur area , parts of Assam and Arunachal Pradesh , were processed at the Geophysical Map- ping Centre using VAX - 11 / 750 computer . Aero- magnetic map ...
... magnetic data acquired during 1989-90 covering 9758 line km over Siliguri- Tezpur area , parts of Assam and Arunachal Pradesh , were processed at the Geophysical Map- ping Centre using VAX - 11 / 750 computer . Aero- magnetic map ...
Page 339
... MAGNETIC FEATURES , NORTHWEST AND NORTHEAST OF TURA IN THE TOTAL INTENSITY AEROMAGNETIC MAP ( NGRI ) OF ASSAM - MEGHALAYA , WEST AND EAST GARO HILLS DISTRICT , MEGHALAYA , TOPOSHEETS 78K / 1 , 2 , 5 , 6 , 9 & 10 . [ Code No. BM / 78K ...
... MAGNETIC FEATURES , NORTHWEST AND NORTHEAST OF TURA IN THE TOTAL INTENSITY AEROMAGNETIC MAP ( NGRI ) OF ASSAM - MEGHALAYA , WEST AND EAST GARO HILLS DISTRICT , MEGHALAYA , TOPOSHEETS 78K / 1 , 2 , 5 , 6 , 9 & 10 . [ Code No. BM / 78K ...
Contents
Overview of the DirectorinCharge | 107 |
East Coast DivisionII 117 | 117 |
West coast Division 127134 | 127 |
Copyright | |
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aeromagnetic amphibolite analysis Andhra Pradesh anomalies bands Barakar Barakar Formation Barren Measures Formation basemetal basin belt Bhutan BIHAR biotite block boreholes chalcopyrite charnockite clay coal seams COALFIELD coarse grained Code copper covered deposition depth range DISTRICT Division drilling dyke east eastern EXPLORATION FOR COAL fault felsic field season folds foraminifera geochemical GEOLOGICAL MAP geophysical gneiss Gondwana grade grey Group heavy mineral horizon INDEX India indicate intersected in boreholes investigation isobath isotopic Kamthi Formation lignite limestone line km lineaments located MADHYA PRADESH magnetic magnetite Maharashtra metamorphism migmatites million tonnes mineralisation NW-SE occur Orissa phyllite plagioclase PLATE-I Precambrian quartz quartz veins quartzite Rajasthan Raniganj Raniganj Formation REGIONAL EXPLORATION rocks Saharjuri sand sandstone schist seabed seam zones sector sediments shallow shelf silty Singhbhum sq km strike length studies sulphide survey Talchir Formation tectonic thickness Thimphu toposheet trending upto varies volcanic