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 16
... composition of jacobsite is recorded over very small areas , the P - T condition is not expected to change appreciably to cause the change in composition . The uniform P - T condition is indicated by the mineralogical assemblage in ...
... composition of jacobsite is recorded over very small areas , the P - T condition is not expected to change appreciably to cause the change in composition . The uniform P - T condition is indicated by the mineralogical assemblage in ...
Page 25
... composition of hornblende and plagioclase indicates that they have cry- stallized at higher temperature than other meta - basic rocks of the area . Chemistry of minerals separated from these rocks show that the composition of amphi ...
... composition of hornblende and plagioclase indicates that they have cry- stallized at higher temperature than other meta - basic rocks of the area . Chemistry of minerals separated from these rocks show that the composition of amphi ...
Page 31
... composition of plagioclase from An , to An , with increa- sing metamorphic grade , i . e . greenschist to almandine- amphibolite facies may be " due to some way to the peristerite solvus " . The anorthite content of plagioclase in the ...
... composition of plagioclase from An , to An , with increa- sing metamorphic grade , i . e . greenschist to almandine- amphibolite facies may be " due to some way to the peristerite solvus " . The anorthite content of plagioclase in 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 |
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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