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 177
... CHROMITE IN THE MAFIC -. boreholes ( BBH - 8 and 10 ) were drilled . In BBH- 8 ( 215.95m ) , a 18m thick silicified ultramafic rock with dissemination of chromite and veins of pegmatitic gabbro were intersected below the gabbroic rock ...
... CHROMITE IN THE MAFIC -. boreholes ( BBH - 8 and 10 ) were drilled . In BBH- 8 ( 215.95m ) , a 18m thick silicified ultramafic rock with dissemination of chromite and veins of pegmatitic gabbro were intersected below the gabbroic rock ...
Page 178
... chromite with Cr2O3 < 30 % . Rich chromite ores with Cr2O3 ranging from 30 % to 45 % . Very rich chromite ores with Cr2O3 ranging from 45 % to 63 % . Each sample weighing about 2 kgs , of 2-5m chromite bands with the known grade was ...
... chromite with Cr2O3 < 30 % . Rich chromite ores with Cr2O3 ranging from 30 % to 45 % . Very rich chromite ores with Cr2O3 ranging from 45 % to 63 % . Each sample weighing about 2 kgs , of 2-5m chromite bands with the known grade was ...
Page 195
... chromite ores and pieces of lumpy chromite below soil cover . In one pit , talc schist and granite gneisses are exposed . At one place , the talc schist contains chromiferous ultramafics which has got depth persistency . Chromite ...
... chromite ores and pieces of lumpy chromite below soil cover . In one pit , talc schist and granite gneisses are exposed . At one place , the talc schist contains chromiferous ultramafics which has got depth persistency . Chromite ...
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