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 31
... depth ranges 0-15 km ( upper crust ) , 15-35 km ( lower crust ) and depth > 35 km ( upper mantle ) were selected to estimate the b - value in each tectonic block ; the estimated values are shown in Table - 1 . These blocks are the ...
... depth ranges 0-15 km ( upper crust ) , 15-35 km ( lower crust ) and depth > 35 km ( upper mantle ) were selected to estimate the b - value in each tectonic block ; the estimated values are shown in Table - 1 . These blocks are the ...
Page 48
... depth extent . However , around NLTS - 39 the apparent resistivity of the order of 100 Ohm.m is indicated . The corresponding apparent chargeability data for top layer indicate , in general , a very low order of chargeability ( less ...
... depth extent . However , around NLTS - 39 the apparent resistivity of the order of 100 Ohm.m is indicated . The corresponding apparent chargeability data for top layer indicate , in general , a very low order of chargeability ( less ...
Page 177
... depth below coarse gabbro . In BBH - 11 ( 112.70m ) , a 29m thick ultramafic rock with disseminations of chromite , ferritchromite was intersected from 37m to 66m depth below gabbroic rock . In BBH - 12 ( 100.05m ) the serpentinite with ...
... depth below coarse gabbro . In BBH - 11 ( 112.70m ) , a 29m thick ultramafic rock with disseminations of chromite , ferritchromite was intersected from 37m to 66m depth below gabbroic rock . In BBH - 12 ( 100.05m ) the serpentinite with ...
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