Records of the Geological Survey of India, Volume 102Geological Survey of India, 1972 - Earthquakes |
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Page 25
... mineralisation and silicification in several pulses are also present . A late phase carbonatisation is noticeable throughout the belt ( Dasgupta , 1964. ) . The mineralisation is attributed to replacement by hydrothermal solutions and ...
... mineralisation and silicification in several pulses are also present . A late phase carbonatisation is noticeable throughout the belt ( Dasgupta , 1964. ) . The mineralisation is attributed to replacement by hydrothermal solutions and ...
Page 27
... mineralisation . Deep drilling is in progress . Further southward in Andhra Pradesh , impersistent stringers and veins of chalcopyrite and pyrite associated with vein quartz and pegmatites occur sporadically in metavolcanics , mica ...
... mineralisation . Deep drilling is in progress . Further southward in Andhra Pradesh , impersistent stringers and veins of chalcopyrite and pyrite associated with vein quartz and pegmatites occur sporadically in metavolcanics , mica ...
Page 30
... mineralisation at the eastern end , apatite - magnetite mineralisation in the central sector , and lead - copper mineralisation in the western part ) remains a metallogenetic enigma . The association of base metals with phosphate and ...
... mineralisation at the eastern end , apatite - magnetite mineralisation in the central sector , and lead - copper mineralisation in the western part ) remains a metallogenetic enigma . The association of base metals with phosphate and ...
Contents
VOLUME 102 PART | 1 |
Copper Lead and Zinc by P K Banerjee | 19 |
4150 | 41 |
Copyright | |
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amphibolite Andhra Pradesh Assam associated average bands base metal basin bauxite bauxite deposits belt Bihar Block boreholes cement grade chalcopyrite chert Chowdhury chromite coal coalfields colour containing copper depth disseminations district dolomite drilling exploration ferruginous fields fluorite flux grade folds formation G.S.I. report Geol geological Ghosh gneiss gold goldfield Gondwana gossan grade limestone grained granite grey Gujarat hematite hill Himalaya horizon hydrothermal India indicated inferred reserves intrusives iron Karanpura kyanite laterite lenses lenticular limestone localised located lodes Madhya Pradesh magmatic Maharashtra manganese manganese-ore massive metres million tonnes mineralisation minerals Mysore occur orebodies Orissa pegmatites phosphate phosphorite phyllites plateau Pre-Cambrian pyrite pyrite bed pyrrhotite quartz veins quartzite Rajasthan Raniganj region Riphean samples sandstone schist seams sedimentary sediments shales shear zone siliceous sillimanite Singhbhum stratigraphic strike length sulphide Surv syncline Tamil Nadu tectonic thickness Udaipur ultramafic ultramafic bodies ultramafites upto varies Vindhyan width workable