Records of the Geological Survey of India, Volume 113Geological Survey of India, 1984 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 230
... quartz veins . The granite emplace- ment resulted in widespread migmatisation and anatexis . Numerous dykes and sills of metadole- rite and metagabbro are now seen occupying the regional fractures developed during the final stage of ...
... quartz veins . The granite emplace- ment resulted in widespread migmatisation and anatexis . Numerous dykes and sills of metadole- rite and metagabbro are now seen occupying the regional fractures developed during the final stage of ...
Page 245
... quartz veins are devoid of significant gold mineralisation . 4. Thambarahalli Block : This block is located further south of Hathun block . Surface samples collected from quartz veins have yielded gold values ranging from 0.50 to 2.00 g ...
... quartz veins are devoid of significant gold mineralisation . 4. Thambarahalli Block : This block is located further south of Hathun block . Surface samples collected from quartz veins have yielded gold values ranging from 0.50 to 2.00 g ...
Page 254
... quartz micaschist and are composed of plagioclose felspar , quartz and mica . A length of 55 line km on 1 : 31,680 scale was mapped along freshly excavated Kanupur canal section . The canal originates from Penna river south of Sangam ...
... quartz micaschist and are composed of plagioclose felspar , quartz and mica . A length of 55 line km on 1 : 31,680 scale was mapped along freshly excavated Kanupur canal section . The canal originates from Penna river south of Sangam ...
Contents
OFF SHORE MINERAL EXPLORATION AND MARINE GEOLOGY DIVISION | 63 |
Performance of the Geological Survey of India during 197576 F S | 66 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 75 |
Copyright | |
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amphibolite analysis Andhra Pradesh Asstt bands Banerjee basalt basemetal basin belt block boreholes Calcutta chalcopyrite charnockite Circle clay COALFIELD covering an area Deccan Trap deposits depth dips Director DISTRICT dolomite drill cores dykes exposed fault folds foliation Formation fossils geochemical geological mapping Geologist Jr geophysical geotechnical geothermal Ghosh gneiss Gondwana grade granite grey Group Gupta Headquarters Hydel indicated investigation Karnataka Kumar laboratory laterite limestone lineament located logging Lucknow MADHYA PRADESH magnetic magnetite Maharashtra mapped an area meeting metres migmatite million tonnes mineral mineralisation nala NE-SW NW-SE occur pegmatite phyllite pitting power house Project quartz quartz veins quartzite Quaternary Rajasthan Region river rock types S/Shri samples were collected sandstone scale schist sediments shale Sharma sheet Shri sillimanite Singh Sinha spillway sq km sq km area Srivastava strike length studies sulphide surveys Tamil Nadu thickness tion toposheet traverses trending tunnel upto varying