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 63
... contains Glossopteris - Vertebraria assem- blage of Permian age . The overlying Zone B contains a floral assemblages with diagnostic Upper Gondwana genus Ptilophyllum , and Sah and Shah ( 1974 ) assigned Lower to Middle Jurassic age to ...
... contains Glossopteris - Vertebraria assem- blage of Permian age . The overlying Zone B contains a floral assemblages with diagnostic Upper Gondwana genus Ptilophyllum , and Sah and Shah ( 1974 ) assigned Lower to Middle Jurassic age to ...
Page 70
... contains authigenic quartz grains of small size not exceeding 0.02 mm . Microstylolitic contacts are also visible but not so sharp . Intraclast of carbonates are also seen ( Plate II , Fig . 1 ) in thin section . Sawa Grit and Sawa ...
... contains authigenic quartz grains of small size not exceeding 0.02 mm . Microstylolitic contacts are also visible but not so sharp . Intraclast of carbonates are also seen ( Plate II , Fig . 1 ) in thin section . Sawa Grit and Sawa ...
Page 70
... contains minute spots In all the cases the quartz percentage is more than 87.60 % hence it can be termed as quartz ... contain inclusions of iron , chlorite , etc. Quartz grains often show a secondary over- growth of silica and reworked ...
... contains minute spots In all the cases the quartz percentage is more than 87.60 % hence it can be termed as quartz ... contain inclusions of iron , chlorite , etc. Quartz grains often show a secondary over- growth of silica and reworked ...
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