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 2
... localities of this region lying to the west and south - west of Kharswan ( vide Fig . 1 ) along with some gold - quartz reefs travers- ing the Precambrian meta - sedimentaries and meta - vol- canics occurring in parts of Singhbhum and ...
... localities of this region lying to the west and south - west of Kharswan ( vide Fig . 1 ) along with some gold - quartz reefs travers- ing the Precambrian meta - sedimentaries and meta - vol- canics occurring in parts of Singhbhum and ...
Page 15
... localities , were prepared for the study of their minera- graphic features and etch behaviour ; chemical and x - ray analyses were carried out for the same seven samples . MINERAGRAPHIC OBSERVATION In incident light under microscope all ...
... localities , were prepared for the study of their minera- graphic features and etch behaviour ; chemical and x - ray analyses were carried out for the same seven samples . MINERAGRAPHIC OBSERVATION In incident light under microscope all ...
Page 16
... locality is reddish brown and its MnO4 mols is 14. The reddish colour is attributed to the Fe rich composition . Etch behaviour of jacobsites was studied by Roy ( 1959 , 1981 ) who concluded that those having composition nearer to ...
... locality is reddish brown and its MnO4 mols is 14. The reddish colour is attributed to the Fe rich composition . Etch behaviour of jacobsites was studied by Roy ( 1959 , 1981 ) who concluded that those having composition nearer to ...
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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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