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 6
... Table - I ) , while the stream - sediment sam- ples as such do not generally show more than 0.5 ppm Au ( cf sample no . 64/77 ) . The other elements analysed show the following range of values : Cu ( 40-160 ppm ) , Pb ( < 10-30 ppm ) ...
... Table - I ) , while the stream - sediment sam- ples as such do not generally show more than 0.5 ppm Au ( cf sample no . 64/77 ) . The other elements analysed show the following range of values : Cu ( 40-160 ppm ) , Pb ( < 10-30 ppm ) ...
Page 26
... ( Table - II ) . Rounded crystals of sodic - plagioclase and opaque mine- rals occur as accessories . Chemically , it contains exceptionally low alumina , but high magnesia , lime and H2O + ( Table — III ) . This is also reflected in ...
... ( Table - II ) . Rounded crystals of sodic - plagioclase and opaque mine- rals occur as accessories . Chemically , it contains exceptionally low alumina , but high magnesia , lime and H2O + ( Table — III ) . This is also reflected in ...
Page 28
... ( Table - II ) . They often show relict ophitic 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 ...
... ( Table - II ) . They often show relict ophitic 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 ...
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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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