Records of the Geological Survey of India, Volume 114Geological Survey of India, 1979 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 26
... schistose amphibolite and massive amphibolite . An attempt has been made in the present paper to deal with the chemistry of these rocks . The chief constituting minerals viz . horn- blende and plagioclase were also chemically analysed ...
... schistose amphibolite and massive amphibolite . An attempt has been made in the present paper to deal with the chemistry of these rocks . The chief constituting minerals viz . horn- blende and plagioclase were also chemically analysed ...
Page 27
... schistose amphibolites are richer in silica , alumina and potash content than the other metabasic rocks ( Table - III ) . They are depleted in ferrous iron , soda and magnesia . The plots of schistose amphibolite lie in between those of ...
... schistose amphibolites are richer in silica , alumina and potash content than the other metabasic rocks ( Table - III ) . They are depleted in ferrous iron , soda and magnesia . The plots of schistose amphibolite lie in between those of ...
Page 28
... schistose type . The amount of hornblende always dominates over the actinolite . Replacement of actinolite by hornblende is common . The hornblendes are deep green in colour , while actinolites are pale green to light blue . Porphyro ...
... schistose type . The amount of hornblende always dominates over the actinolite . Replacement of actinolite by hornblende is common . The hornblendes are deep green in colour , while actinolites are pale green to light blue . Porphyro ...
Contents
Integrated Geochemical Approach for Tracing Gold Mineralisation in Parts of | 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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Common terms and phrases
actinolite amphiboles amphibolites analysis Archaean assemblage BANKURA DISTRICT Barakar Barakar Formation basement bedrock samples Bihar biotite boreholes calcite catchment area Chakradharpur chemical Chittorgarh coarse colour composition country rocks crystals Dassarma deposit Dubrajpur Dubrajpur Formation Electron elements epidiorites fossils geochemical Geol Geological Survey Ghose gneiss Goilkera granite gneiss GSI Type Hippopotamus hornblende hornblende schist host rock jacobsite Kharswan Khatangi hill section lithological magnetite manganese Manuscript received massive amphibolites McCluskieganj meta-basic rocks metamorphic metres mineralisation minerals namadicus Narmada nepheline syenite Nimbahera Nimbahera limestone occur palaeindicus phyllitic plagioclase Plate present area quartz Quartzite Quaternary Rajmahal Hills Records Vol river Rupatganj Sah and Shah Sawa 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 values vein-quartz veins Vindhyan West Bengal X-Ray Λ Λ