Records of the Geological Survey of India, Volume 124, Part 2The Survey, 1991 - 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 127
... occur as lenses . It occurs along and nearly east - west stretch of Frontal belt of Bhutan Himalaya . Good quartzite deposits are reported to occur at many places near to and south of the Main Crystalline Thrust and deposits of Tintali ...
... occur as lenses . It occurs along and nearly east - west stretch of Frontal belt of Bhutan Himalaya . Good quartzite deposits are reported to occur at many places near to and south of the Main Crystalline Thrust and deposits of Tintali ...
Page 151
... occurs as interconnected large grains and also spreads along the intergranu- lar space of the silicate . Sphalerite occurs as exsolved phase in chalcopyrite usually migrating to the grain margins . Pyrite , chalcocite and pyrrhotite occur ...
... occurs as interconnected large grains and also spreads along the intergranu- lar space of the silicate . Sphalerite occurs as exsolved phase in chalcopyrite usually migrating to the grain margins . Pyrite , chalcocite and pyrrhotite occur ...
Page 232
... occurs west of the bank between 90-200 m depths , coral gravels and rubbles occur on the top of the bank upto 50 m depth followed by silty sand occurring on the flanks of the bank upto 200 m and beyond while the seafloor is covered by ...
... occurs west of the bank between 90-200 m depths , coral gravels and rubbles occur on the top of the bank upto 50 m depth followed by silty sand occurring on the flanks of the bank upto 200 m and beyond while the seafloor is covered by ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
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Common terms and phrases
aeromagnetic amphibolite AMSE Wing analysis Andhra Pradesh anomalies assemblage bands Barakar Formation BARREN MEASURES FORMATION basement basin Bhutan block boreholes carbonaceous Central chalcopyrite clay coal seams Coal Wing coarse grained Code copper mineralisation core Cruise deposits depth range DISTRICT drilling east eastern ENE-WSW evaluation EXPLORATION FOR COAL faults felsic field season fold geochemical GEOLOGICAL MAP gneisses Gondwana grade granite gravity grey Group heavy mineral ilmenite INDEX India indicate intersected investigation Kamthi Formation limestone lineament MADHYA PRADESH magnetic magnetite medium metamorphism migmatite million tonnes NW-SE occur ORISSA phyllite potential PRECAMBRIAN pyrite quartz quartzite Raniganj Raniganj Formation Regional exploration rocks Sakoli samples sand sandstone scale schist schist belt seabed seam zones sector sediments shale siltstone silty Singhbhum soil sq km Stratigraphy strike length sulphide surface surveys Talchir Formation tectonic thickness tion Toposheet trending tuff upto VALLEY COALFIELD varies volcanics zone