Records of the Geological Survey of India, Volume 122, Part 2Government of India, 1989 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 49
... quartz veins are emplaced along the plane of schistosity and in the domains of F2 folding where crenulation is well developed . Emplacement of quartz vein , related to gold mineralisation , appears to have started with the on set of ...
... quartz veins are emplaced along the plane of schistosity and in the domains of F2 folding where crenulation is well developed . Emplacement of quartz vein , related to gold mineralisation , appears to have started with the on set of ...
Page 50
... quartz veins occurring away from the mineralised zone are found to be devoid of fluid inclusions . On the other hand , quartz veins in the mineralised zone show well developed mono- , bi- and polyphase fluid inclusions . Freezing ...
... quartz veins occurring away from the mineralised zone are found to be devoid of fluid inclusions . On the other hand , quartz veins in the mineralised zone show well developed mono- , bi- and polyphase fluid inclusions . Freezing ...
Page 81
... quartz rock , quartz - chlorite rock and veins of quartz ( ± tourmaline ) carrying sulphide mineralisation occur associated with steep dipping , chlorite mica schist ( + chloritoid , ± magnetite ) belonging to the Mid - Proterozoic ...
... quartz rock , quartz - chlorite rock and veins of quartz ( ± tourmaline ) carrying sulphide mineralisation occur associated with steep dipping , chlorite mica schist ( + chloritoid , ± magnetite ) belonging to the Mid - Proterozoic ...
Contents
CENTRAL HEADQUARTERS 179 | 1 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
COAL WING 105 174 | 105 |
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aero-EM aeromagnetic amphibolite AMSE Wing analysis ANDHRA PRADESH anomalies assemblage bands Barakar Barakar Formation Barren Measures basin BIHAR block boreholes Calcutta carried clay coal seams Coal Wing COALFIELD Code copper cores correlation deposits depth developed DISTRICT Division drilling dykes eastern fault fossils geochemical geological mapping GEOLOGICAL PLAN Geophysics gneisses Gondwana grained granite gravity GROUND EVALUATION Group heavy minerals India indicated intersected isochron isotopic Kamthi Formation LANDSAT lignite limestone located Lower magnetic metamorphic MG Wing migmatites million tonnes mineralisation NW-SE occurs OME & MG Orissa Palaeontology and Stratigraphy pegmatite phyllite Precambrian programme quartz quartzite Rajmahal range Raniganj Raniganj Formation REGIONAL EXPLORATION rocks samples were collected sand sandstone scale schist seabed seam zones sections sector sedimentary sediments sequence shale shelf sillimanite Singhbhum sq km Stratigraphy strike length stromatolites sulphide surveys Talchir Formation thickness toposheet trending Upper upto valley varies veins vitrinite volcanics