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
... grains recovered from this area vary in size from 0.5 mm to 2.5 mm with some occasional bigger grains . These grains are generally flaky to tabular with rounded to irregular outlines show- ing various types of marginal patterns and ...
... grains recovered from this area vary in size from 0.5 mm to 2.5 mm with some occasional bigger grains . These grains are generally flaky to tabular with rounded to irregular outlines show- ing various types of marginal patterns and ...
Page 7
... grains like quartz are generally found to remain attached with some heavies . A few gold grains are generally found in association with the heavy minerals . Normally gold grains are of two types , the one upto 0.5 mm and the other 1 to ...
... grains like quartz are generally found to remain attached with some heavies . A few gold grains are generally found in association with the heavy minerals . Normally gold grains are of two types , the one upto 0.5 mm and the other 1 to ...
Page 60
... grains . There is a general tendency for the smaller grains to be subhedral , whereas the coarser grains are usually anhedral . Effect of minor deformation is indicated by bending of the twin lamellae . Incipient alteration to sericite ...
... grains . There is a general tendency for the smaller grains to be subhedral , whereas the coarser grains are usually anhedral . Effect of minor deformation is indicated by bending of the twin lamellae . Incipient alteration to sericite ...
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