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 3
... effects of feeble feldspathisation recorded within rocks occurring on the either side of Railway line . This is indicated by the development of porphyroblasts of sodic plagioclase visible under the microscope . Scattered cubes of pyrite ...
... effects of feeble feldspathisation recorded within rocks occurring on the either side of Railway line . This is indicated by the development of porphyroblasts of sodic plagioclase visible under the microscope . Scattered cubes of pyrite ...
Page 60
... Effect of minor deformation is indicated by bending of the twin lamellae . Incipient alteration to sericite and scapolite is occasionally noticed . The smaller grains are usually very fresh and show lamellar twinning . The composition ...
... Effect of minor deformation is indicated by bending of the twin lamellae . Incipient alteration to sericite and scapolite is occasionally noticed . The smaller grains are usually very fresh and show lamellar twinning . The composition ...
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 |
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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