Records of the Geological Survey of India, Volume 114Geological Survey of India, 1984 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 6
... quartz are found to remain attached with the heavies because of incomplete separation by fluvial action . The gold ... vein - quartz samples have shown Au values from trace to 0.1 ppm only ( vide Table - II ) , while the other elements ...
... quartz are found to remain attached with the heavies because of incomplete separation by fluvial action . The gold ... vein - quartz samples have shown Au values from trace to 0.1 ppm only ( vide Table - II ) , while the other elements ...
Page 8
... vein - quartz fragments , in situ vein - quartz outcrops are rare . Vein - quartz fragments are mostly scattered as local small dumps along the gently sloping grounds and stream beds . Among the various types of vein - quartz materials ...
... vein - quartz fragments , in situ vein - quartz outcrops are rare . Vein - quartz fragments are mostly scattered as local small dumps along the gently sloping grounds and stream beds . Among the various types of vein - quartz materials ...
Page 10
... vein - quartz 2 170/79 80 100 50 309 10 < 5 20 , 3 172/79 10 < 10 < 10 < 10 5 5 10 090 40 40 nd 4 173/79 30 < 10 20 10 10 20 20 5 174,79 50 10 10 10 5 5 20 30 30 220 nd 20 2 2 2 2 nd Milky white v . q . Milky white v . q . Milky white ...
... vein - quartz 2 170/79 80 100 50 309 10 < 5 20 , 3 172/79 10 < 10 < 10 < 10 5 5 10 090 40 40 nd 4 173/79 30 < 10 20 10 10 20 20 5 174,79 50 10 10 10 5 5 20 30 30 220 nd 20 2 2 2 2 nd Milky white v . q . Milky white v . q . Milky white ...
Contents
Integrated Geochemical Approach for Tracing Gold Mineralisation in Parts | 1 |
On Jacobsites from Vizianagaram Manganese Belt of Eastern Ghats Andhra | 15 |
Fossil Hippopotamus from Quaternary Alluvial Deposits of Narmada Valley | 17 |
Copyright | |
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actinolite amphiboles amphibolite analysis ARCHAEAN assemblage associated BANKURA DISTRICT Barakar basement bedrock samples Bihar Biotite boreholes catchment area Chakradharpur chemical colour composition country rocks crystals Dassarma Dolerite Domuhan river Dubrajpur Dubrajpur Formation Electron elements epidiorites geochemical Geol Geological Survey Ghose gneiss Goilkera gold grains Granite gneiss green GSI Type Haast river Hippopotamus hornblende hornblende schist host rock igneous jacobsite Kharswan strip Khatangi hill section magnetite manganese Manuscript received massive amphibolite Mayapur McCluskieganj meta-basic rocks metamorphic metres south mica schists mineralisation minerals namadicus Narmada Neogene nepheline syenite occur palaeindicus Pegmatite pelite phyllites plagioclase Porphyritic present area quartz Quartzite Quaternary ratios Rupatganj schist schistose schistose amphibolite sediments shale Singhbhum Singhbhum Shear Zone specimens stratigraphic stream sediment-concentrate samples sulphide Surv Survey of India Table-II Talapatra texture three strips values vein-quartz veins West Bengal X-Ray