Records of the Geological Survey of India, Volume 114Geological Survey of India, 1979 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 15
... colour under the microscope into consideration . Mn - content of jacobsite from different locations of the belt is found to vary in a wide range and is accompanied by the variation of cell dimension , colour and etch behaviour which are ...
... colour under the microscope into consideration . Mn - content of jacobsite from different locations of the belt is found to vary in a wide range and is accompanied by the variation of cell dimension , colour and etch behaviour which are ...
Page 70
... colour . In thin section , it is coarse - grained sandstone in which the quartz grains have developed interlocking texture due to secondary silica overgrowth , which is the result of continuous pressure solution . The original quartz ...
... colour . In thin section , it is coarse - grained sandstone in which the quartz grains have developed interlocking texture due to secondary silica overgrowth , which is the result of continuous pressure solution . The original quartz ...
Page 70
... colour but chocolate colour is also common . In this section , it is very fine - grained argillaceous materials exhibiting clear banding . The banding is due to com- positional variation from ferruginous and arenaceous to micaceous ...
... colour but chocolate colour is also common . In this section , it is very fine - grained argillaceous materials exhibiting clear banding . The banding is due to com- positional variation from ferruginous and arenaceous to micaceous ...
Contents
Integrated Geochemical Approach for Tracing Gold Mineralisation in Parts of | 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 amphibolites analysis Archaean assemblage BANKURA DISTRICT Barakar Barakar Formation basement bedrock samples Bihar biotite boreholes calcite catchment area Chakradharpur chemical Chittorgarh coarse colour composition country rocks crystals Dassarma deposit Dubrajpur Dubrajpur Formation Electron elements epidiorites fossils geochemical Geol Geological Survey Ghose gneiss Goilkera granite gneiss GSI Type Hippopotamus hornblende hornblende schist host rock jacobsite Kharswan Khatangi hill section lithological magnetite manganese Manuscript received massive amphibolites McCluskieganj meta-basic rocks metamorphic metres mineralisation minerals namadicus Narmada nepheline syenite Nimbahera Nimbahera limestone occur palaeindicus phyllitic plagioclase Plate present area quartz Quartzite Quaternary Rajmahal Hills Records Vol river Rupatganj Sah and Shah Sawa 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 values vein-quartz veins Vindhyan West Bengal X-Ray Λ Λ