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 54
... indicated a further increase in depth of base- ment towards east . At Dhansimla , about 28 km east of Govindpur and 11 km east of Rupatganj , the basement depth might be nearly 750 m below land surface ( Sen , 1961 ) . Aeromagnetic ...
... indicated a further increase in depth of base- ment towards east . At Dhansimla , about 28 km east of Govindpur and 11 km east of Rupatganj , the basement depth might be nearly 750 m below land surface ( Sen , 1961 ) . Aeromagnetic ...
Page 60
... indicated by bending of the twin lamellae . Incipient alteration to sericite and scapolite is occasionally noticed . The smaller grains are usually very fresh and show lamellar twinning . The composition of the plagioclase is ...
... indicated by bending of the twin lamellae . Incipient alteration to sericite and scapolite is occasionally noticed . The smaller grains are usually very fresh and show lamellar twinning . The composition of the plagioclase is ...
Page 82
... indicated similar concentration Here Cu , Ni , Co and Zr showed values greater than 2 times the world average . It is interesting to note that in the final cluster grouping of element obtained from the geochemical results of migmatised ...
... indicated similar concentration Here Cu , Ni , Co and Zr showed values greater than 2 times the world average . It is interesting to note that in the final cluster grouping of element obtained from the geochemical results of migmatised ...
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