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 25
... contain numerous lenses and bands of meta - basic rocks of different geological ages . These are metamorphosed to greenschist facies . Based on detailed study of petrography , mineralogy and chemistry the meta - basic rocks have been ...
... contain numerous lenses and bands of meta - basic rocks of different geological ages . These are metamorphosed to greenschist facies . Based on detailed study of petrography , mineralogy and chemistry the meta - basic rocks have been ...
Page 60
... contain fine specks of exsolved hematite along the basal plane of the host . The overall texture of these rocks may be termed as hypidiomorphic granular . Porphyritic texture is occa- sionally conspicuous with phenocrysts of microcline ...
... contain fine specks of exsolved hematite along the basal plane of the host . The overall texture of these rocks may be termed as hypidiomorphic granular . Porphyritic texture is occa- sionally conspicuous with phenocrysts of microcline ...
Page 60
... containing opaque minerals ( dark ) and plagioclase ( white ) . Nicols partly crossed . D. 05 mm Nepheline ( ne ) - - opaque ( op ) calcite ( ca ) biotite ( bt ) assemblage . Crossed nicols . Mukherjee S. , et al Two samples of the ...
... containing opaque minerals ( dark ) and plagioclase ( white ) . Nicols partly crossed . D. 05 mm Nepheline ( ne ) - - opaque ( op ) calcite ( ca ) biotite ( bt ) assemblage . Crossed nicols . Mukherjee S. , et al Two samples of the ...
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