Records of the Geological Survey of India, Volume 134, Part 3Geological Survey of India, 1999 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 10
... zone . 3. Broad structural aspects of the complex including the various early and late planar and linear structural features . - 4. Detailed petro - mineragraphic studies of the ultramafics - mafics and the breccia zone components ...
... zone . 3. Broad structural aspects of the complex including the various early and late planar and linear structural features . - 4. Detailed petro - mineragraphic studies of the ultramafics - mafics and the breccia zone components ...
Page 50
... zones viz . G1 and G2 are identified in the area . The gradient G1 probably coincides with the boundary between the hybridised zone containing polymetallic occurrences and highly migmatised terrain to the north , hosting Bihar Mica Belt ...
... zones viz . G1 and G2 are identified in the area . The gradient G1 probably coincides with the boundary between the hybridised zone containing polymetallic occurrences and highly migmatised terrain to the north , hosting Bihar Mica Belt ...
Page 131
... zone which trend N - S and show a crude zoning having quartz feldspar rich core followed outwardly by green mica rich zone and outermost tourmaline rich zone . Rb content of these pegmatites ranges from 686 ppm to 0.15 % while Li ranges ...
... zone which trend N - S and show a crude zoning having quartz feldspar rich core followed outwardly by green mica rich zone and outermost tourmaline rich zone . Rb content of these pegmatites ranges from 686 ppm to 0.15 % while Li ranges ...
Contents
HEADQUARTERS Page | 1 |
Petrology Division | 7 |
Palynostratigraphy of the Gondwana sediments in the Brahmani and Birbhum coalfield | 13 |
Copyright | |
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alluvium amphibolite anomaly antiform axial bands basemetal basin bauxite beach bed rock belt Bihar biotite block BOLANGIR DISTRICT boreholes carried charnockite chromite coarse grained Code construction core samples covered Deogarh deposits depth DISTRICT drilled earth dam eastern Engineering Geology Engineering Geology Division excavated exposed fault field season fold foliation formation fracture gabbro garnet garnetiferous geochemical sampling GEOLOGICAL MAP Geology Division Opn geophysical GEOTECHNICAL INVESTIGATION gneiss Gondwana grade granite granite gneiss granitoids grey identified indicated intersected iron Jharkhand khondalite laminated landslide laterite lithounits located manganese mica schist mineralisation minerals nala occurs Orissa pegmatite phyllite Project Engineering Geology Purulia pyrite quartz quartz veins quartzite regional river sandstone scale schist sector shale shear zone Sikkim Singhbhum slope soil spillway sq.km stream sediment sampling strike length structure Super Group supracrustal surface survey synforms thickness toposheet trench trending ultramafic volcanics WEST BENGAL WEST SINGHBHUM