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 159
... quartz - sericite schist within the massive metavolcanics , which are iron - rich tholeiites . The Ramagiri gold mines of B.G.M.L. is devel- oped by two main shafts viz . Yeppamana shaft and Jammamanu shaft , which work on Yeppamana ...
... quartz - sericite schist within the massive metavolcanics , which are iron - rich tholeiites . The Ramagiri gold mines of B.G.M.L. is devel- oped by two main shafts viz . Yeppamana shaft and Jammamanu shaft , which work on Yeppamana ...
Page 160
... Quartz - sericite Quartz - sericite Elements Metabasalt Schist ( wall rock of drives ) schist ( lode Quartz N = 55 N = 67 zone ) N = 210 N = 64 N = 38 Ni 93.45 95.07 86.67 ± 5.18 +5.66 +3.19 61.45 ± 6.90 Co 52.55 57.07 50.43 ± 2.45 ...
... Quartz - sericite Quartz - sericite Elements Metabasalt Schist ( wall rock of drives ) schist ( lode Quartz N = 55 N = 67 zone ) N = 210 N = 64 N = 38 Ni 93.45 95.07 86.67 ± 5.18 +5.66 +3.19 61.45 ± 6.90 Co 52.55 57.07 50.43 ± 2.45 ...
Page 179
... ( quartz - biohtet garnet rock ) Chlorite - muscovitet magnetite schist Inferred contact District boundary oo Old working Borehole completed GEOLOGICAL AND GEOCHEMICAL APPRAISAL OF COPPER MINERALISATION IN BHADUGAON AREA. rock ( rhyolite ...
... ( quartz - biohtet garnet rock ) Chlorite - muscovitet magnetite schist Inferred contact District boundary oo Old working Borehole completed GEOLOGICAL AND GEOCHEMICAL APPRAISAL OF COPPER MINERALISATION IN BHADUGAON AREA. rock ( rhyolite ...
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