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 182
... grade Mn - ore with low Fe and P has been indicated . Grade of ore in all of these blocks is as follows : Mn % 20.39 to 33.02 , Fe % 12.32 to 18.34 , P % 0.22 to 0.44 , SiO2 % 10.80 to 19.50 , Al2O3 % 0.80 to 5.46 . The second ...
... grade Mn - ore with low Fe and P has been indicated . Grade of ore in all of these blocks is as follows : Mn % 20.39 to 33.02 , Fe % 12.32 to 18.34 , P % 0.22 to 0.44 , SiO2 % 10.80 to 19.50 , Al2O3 % 0.80 to 5.46 . The second ...
Page 190
... grade metamorphic rocks i.e. amphibolites , talc - schists and sericite schists are exposed . These rocks are occurring as rafts within the EGMB rocks . In Chandar sector , most of the areas are covered by laterite and soil except few ...
... grade metamorphic rocks i.e. amphibolites , talc - schists and sericite schists are exposed . These rocks are occurring as rafts within the EGMB rocks . In Chandar sector , most of the areas are covered by laterite and soil except few ...
Page 196
... grade in nature ( Fe - 61 % to 65 % ) . Lateritic / limonitic ore and soft laminated to powdery ore are lower in grade ( Fe – 55.65 % to 60.66 % ) . In the high grade ore the total ( Al2O3 + SiO2 ) ranges from 2.80 % to 6 % and that in low ...
... grade in nature ( Fe - 61 % to 65 % ) . Lateritic / limonitic ore and soft laminated to powdery ore are lower in grade ( Fe – 55.65 % to 60.66 % ) . In the high grade ore the total ( Al2O3 + SiO2 ) ranges from 2.80 % to 6 % and that in low ...
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