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 24
... rocks of the belt ( Char- nockite sensu - lato ) have varying petrological heri- tage . Two main types are recognisable in the Orissa sector of the belt e.g. ( t ) Charnockitic rocks derived through high grade transformation of older ...
... rocks of the belt ( Char- nockite sensu - lato ) have varying petrological heri- tage . Two main types are recognisable in the Orissa sector of the belt e.g. ( t ) Charnockitic rocks derived through high grade transformation of older ...
Page 101
... rocks was made . Humboldt Area : The country rocks exposed in the eastern and central partsof Nordvestoya hills are mainly banded gneisses and granitised gneisses , the later encompassing migmatitic bands . Few bands of high grade rock ...
... rocks was made . Humboldt Area : The country rocks exposed in the eastern and central partsof Nordvestoya hills are mainly banded gneisses and granitised gneisses , the later encompassing migmatitic bands . Few bands of high grade rock ...
Page 360
... rocks bounded by the Amgaon Gneissic Complex to its east . The gneissic lithotectonic unit consisting of gneisses and migmatites with en- claves of quartzite , amphibolite and calcsilicate rocks is considered to represent the relict of ...
... rocks bounded by the Amgaon Gneissic Complex to its east . The gneissic lithotectonic unit consisting of gneisses and migmatites with en- claves of quartzite , amphibolite and calcsilicate rocks is considered to represent the relict of ...
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