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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Page 110
... Bengal west off Andaman Island , isobath map here also indicates the presence of a craggy sea bottom with a series of ridges and valleys in the east and a smooth abyssal topography in the west . A subsea channel ( 150m to 200m deep ) ...
... Bengal west off Andaman Island , isobath map here also indicates the presence of a craggy sea bottom with a series of ridges and valleys in the east and a smooth abyssal topography in the west . A subsea channel ( 150m to 200m deep ) ...
Page 120
... BENGAL WITHIN THE EEZ. minerals are amphibole , pyroxene , epidote and mica . Granet , sillimanite , zircon , tourmaline and opaques are found in less proportion . Among the heavy minerals in the continental slope sediments the content ...
... BENGAL WITHIN THE EEZ. minerals are amphibole , pyroxene , epidote and mica . Granet , sillimanite , zircon , tourmaline and opaques are found in less proportion . Among the heavy minerals in the continental slope sediments the content ...
Page 122
... Bengal Fan in the area coverd are characterised by sub - marinė channels and levees . 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 ...
... Bengal Fan in the area coverd are characterised by sub - marinė channels and levees . 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 ...
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