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 60
... mineral at a late stage in the paragenetic sequence . Records Vol . 114 , Pt . 2 GEOLOGICAL MAP. opaque minerals . In the nepheline - bearing varieties calcite is typically always present as an accessory . Plagioclase occurs both as fine ...
... mineral at a late stage in the paragenetic sequence . Records Vol . 114 , Pt . 2 GEOLOGICAL MAP. opaque minerals . In the nepheline - bearing varieties calcite is typically always present as an accessory . Plagioclase occurs both as fine ...
Page 61
... mineral paragenesis in the syenites shows a perfectly normal order . Presence of considerable amount of volatiles in the syenite - forming melt is indicated by the abundance of minerals containing HO , PO and CO . ( 5 ) The syenites ...
... mineral paragenesis in the syenites shows a perfectly normal order . Presence of considerable amount of volatiles in the syenite - forming melt is indicated by the abundance of minerals containing HO , PO and CO . ( 5 ) The syenites ...
Page 70
... mineral assemblage in order of abundance consists of quartz , microline , plagioclase , hornblende , biotite and magne- tite . Flaky minerals define the foliation plane , but are not much distinct . Quartz and felspar are the main mineral ...
... mineral assemblage in order of abundance consists of quartz , microline , plagioclase , hornblende , biotite and magne- tite . Flaky minerals define the foliation plane , but are not much distinct . Quartz and felspar are the main mineral ...
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