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 30
... host rock than the grade of metamorphism or other physical conditions . The ratios of octahedral cation of alumina and silica ( 100 Alvi : Al vi + Si ) between the amphibole and the host rock ( Fig . 8B ) show partly linear relationship ...
... host rock than the grade of metamorphism or other physical conditions . The ratios of octahedral cation of alumina and silica ( 100 Alvi : Al vi + Si ) between the amphibole and the host rock ( Fig . 8B ) show partly linear relationship ...
Page 31
... host rock , compared with Haast river and Adirondack amphiboles . Key as in figĂș DHARWAR Correlation of the ... host rocks ( Figs . 9 and 10 ) , from which it appears that complete equilibrium was not reached during crystalli- zation ...
... host rock , compared with Haast river and Adirondack amphiboles . Key as in figĂș DHARWAR Correlation of the ... host rocks ( Figs . 9 and 10 ) , from which it appears that complete equilibrium was not reached during crystalli- zation ...
Page 60
... host give rise to Widmanstatten 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 ...
... host give rise to Widmanstatten 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 ...
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