Records of the Geological Survey of India, Volume 122, Parts 2-4Geological Survey of India, 1989 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 137
... range in thickness between 42m and 88m within a depth range of 12m to 119m . The Rampur coal horizon underlies the Lajkura ( Top and Bottom ) coal horizon with a parting of 7.75m to 38m in both the blocks . The thickness of the seam ...
... range in thickness between 42m and 88m within a depth range of 12m to 119m . The Rampur coal horizon underlies the Lajkura ( Top and Bottom ) coal horizon with a parting of 7.75m to 38m in both the blocks . The thickness of the seam ...
Page 178
... range of 20 - 30 m . In the southern sector the heavies are concentrated in the depth range of 8 - 10 m close to the river mouth in association with sediments varying from sand - silt - clays to sands . Pyroxenes , amphiboles ...
... range of 20 - 30 m . In the southern sector the heavies are concentrated in the depth range of 8 - 10 m close to the river mouth in association with sediments varying from sand - silt - clays to sands . Pyroxenes , amphiboles ...
Page 183
... range from 20 to 50 m only . area Preliminary study of the seismic time sections reveal a prominent reflector at a depth range of 20-40 m.sec . This reflector , has a seaward slope and at places small depressions are seen . Beneath this ...
... range from 20 to 50 m only . area Preliminary study of the seismic time sections reveal a prominent reflector at a depth range of 20-40 m.sec . This reflector , has a seaward slope and at places small depressions are seen . Beneath this ...
Contents
CENTRAL HEADQUARTERS 179 | 1 |
AIRBORNE MINERAL SURVEY AND EXPLORATION WING 80104 | 80 |
COAL WING 105 174 | 105 |
Copyright | |
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amphibolite analysed anomaly anorthosite assemblage bands Barakar Barakar Formation basin bed rock belt Bhuban Bihar BIHAR Code biotite block boreholes Calcutta carbonatite carried clay coal seams Coal Wing COALFIELD Construction stage geotechnical cores covered dam axis deposits depth Disang district drilling dykes Eastern Engineering Geology evaluation fault Feasibility stage field season folds geochemical geological mapping Geology Division-II Ops geophysical geotechnical investigation gneiss Gondwana grade grained granite granite gneiss grey Group grouting horizon indicate irrigation limestone lineaments located magnetic metamorphic mica migmatites mineral mineralisation nala occur Orissa pegmatite phyllite PPB PPB PRADESH quartz quartzite Quaternary Raniganj Reservoir Scheme river rock types samples sand sandstone scale schist sediments shale shear zone Shillong siltstone Singhbhum slope Special Investigation spillway sq km stage geotechnical investigation structure surface Survey of India Talchir thickness toposheet traverses trending Upper upto valley varies veins volcanics West Bengal