Records of the Geological Survey of India, Volume 124, Part 2The Survey, 1989 - 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 126
... schist , kyanite mica schist and augen gneiss belong to the Thimpu Forma- tion . In the prospect area , the graphite bearing schist is underlain by quartzite and / or mica schist and is overlain by augen gneiss . X x X X + + x X The ...
... schist , kyanite mica schist and augen gneiss belong to the Thimpu Forma- tion . In the prospect area , the graphite bearing schist is underlain by quartzite and / or mica schist and is overlain by augen gneiss . X x X X + + x X The ...
Page 131
... schist with bands of graphite schist f . Banded marble e . Graphite schist ( mylonitised at ยท places ) interbedded with qartzite and garnetiferous quartz schist d . Calc gneisses / schists c . Milky white marble ( 250 m ) ( 250 m ) ( 45 ...
... schist with bands of graphite schist f . Banded marble e . Graphite schist ( mylonitised at ยท places ) interbedded with qartzite and garnetiferous quartz schist d . Calc gneisses / schists c . Milky white marble ( 250 m ) ( 250 m ) ( 45 ...
Page 159
... schist belt surrounded by Peninsular gneisses . Gold mineralisation is con- fined to the parallel and sub - parallel alteration zones of quarrtz , quartz - sericite schist within the massive metavolcanics , which are iron - rich ...
... schist belt surrounded by Peninsular gneisses . Gold mineralisation is con- fined to the parallel and sub - parallel alteration zones of quarrtz , quartz - sericite schist within the massive metavolcanics , which are iron - rich ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
Copyright | |
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aeromagnetic amphibolite AMSE Wing analysis Andhra Pradesh anomalies assemblage bands Barakar Barakar Formation basement basin Bhutan BIHAR block boreholes carbonaceous 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 Ghosh gneisses Gondwana grade granite gravity grey Group heavy mineral ilmenite INDEX India indicate intersected investigation Kamthi Formation limestone lineament located MADHYA PRADESH magnetic magnetite medium metamorphism 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 stratigraphic strike length sulphide surface surveys Talchir Formation tectonic thickness tion Toposheet trending tuff upto VALLEY COALFIELD varies volcanics zone