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 59
... activity the area was invaded by granitiz- retrogression . The end phase of tectonism is also marked ing fluids bringing about widespread granitization and by the intrusion of the syenitic rocks . Both nepheline - bearing and nepheline ...
... activity the area was invaded by granitiz- retrogression . The end phase of tectonism is also marked ing fluids bringing about widespread granitization and by the intrusion of the syenitic rocks . Both nepheline - bearing and nepheline ...
Page 61
... activity in the area . The salient features in this regard are listed below . ( 1 ) The syenites show very close field affinity to the granite gneisses . ( 7 ) The syenites are characterised by more or less uniformity in their ...
... activity in the area . The salient features in this regard are listed below . ( 1 ) The syenites show very close field affinity to the granite gneisses . ( 7 ) The syenites are characterised by more or less uniformity in their ...
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