Records of the Geological Survey of India, Volume 102Geological Survey of India, 1972 - Earthquakes |
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Page 41
... gold washing and gold mining from auriferous quartz reefs have been in practice in India from very ancient times dating back to the pre - Christian era . Prospecting for gold in modern times commenced in 1828 but it was during the " gold ...
... gold washing and gold mining from auriferous quartz reefs have been in practice in India from very ancient times dating back to the pre - Christian era . Prospecting for gold in modern times commenced in 1828 but it was during the " gold ...
Page 45
... gold belt . En echelon drag folds and accompanying shear - fracture zones are the structures controlling vein - quartz emplacement and gold mineralisation within sheared greenstones and sericite - chlorite phyllites . According to D.B. ...
... gold belt . En echelon drag folds and accompanying shear - fracture zones are the structures controlling vein - quartz emplacement and gold mineralisation within sheared greenstones and sericite - chlorite phyllites . According to D.B. ...
Page 49
... gold . It was also found that the old mill tailings assayed three gm./tonne gold . Taking an average recovery of three gm / tonne as obtained from the records of old Lawa Gold Mines Co. Ltd. , it would appear that the average tenor of ...
... gold . It was also found that the old mill tailings assayed three gm./tonne gold . Taking an average recovery of three gm / tonne as obtained from the records of old Lawa Gold Mines Co. Ltd. , it would appear that the average tenor of ...
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