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 121
... shale formation , which was attributed to the fact that due to very young geological age , the shale is very soft in nature and loses its inherent strength and consistency in contact with water during washing / permeability test , the ...
... shale formation , which was attributed to the fact that due to very young geological age , the shale is very soft in nature and loses its inherent strength and consistency in contact with water during washing / permeability test , the ...
Page 167
... shale sequence and finally by black shale down to the excavation level of 85.5m . The rocks are horizontally bedded and cut by vertical joints which are disposed both along and transverse to the slide - face . The longitudinal vertical ...
... shale sequence and finally by black shale down to the excavation level of 85.5m . The rocks are horizontally bedded and cut by vertical joints which are disposed both along and transverse to the slide - face . The longitudinal vertical ...
Page 197
... shale unit . comprises black shale , khaki & bluish grey shale . It encloses several manganese & iron ore bands mostly within lateritised horizons . Laterite cappings are found over all the rock units , which mark various geomorphic ...
... shale unit . comprises black shale , khaki & bluish grey shale . It encloses several manganese & iron ore bands mostly within lateritised horizons . Laterite cappings are found over all the rock units , which mark various geomorphic ...
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