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
... texture of these rocks distinguishes them from the nematoblastic texture of the schistose amphibolite . Often they show relict ophitic texture . The massive amphibolites are richer in iron and lime with low silica and magnesia content ...
... texture of these rocks distinguishes them from the nematoblastic texture of the schistose amphibolite . Often they show relict ophitic texture . The massive amphibolites are richer in iron and lime with low silica and magnesia content ...
Page 28
... texture . The amphiboles are not arranged in a particular direction and the texture becomes partly granoblastic . Abundance of amphiboles are more in the massive variety than in the schistose type . = The amount of hornblende always ...
... texture . The amphiboles are not arranged in a particular direction and the texture becomes partly granoblastic . Abundance of amphiboles are more in the massive variety than in the schistose type . = The amount of hornblende always ...
Page 60
... texture . Rarely discrete larger grains of ilmenite are found to 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 ...
... texture . Rarely discrete larger grains of ilmenite are found to 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 ...
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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Common terms and phrases
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