Records of the Geological Survey of India, Volume 113, Parts 1-3The Survey, 1983 - 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 129
... tunnel . A shear zone of 0.5m - 1m thickness , striking nearly parallel to the tunnel alignment for 150m length is also present . Yamuna Hydel scheme , Stage - II , Part II : B. S. Andotra and G. K. Kaistha carried out construc- tion ...
... tunnel . A shear zone of 0.5m - 1m thickness , striking nearly parallel to the tunnel alignment for 150m length is also present . Yamuna Hydel scheme , Stage - II , Part II : B. S. Andotra and G. K. Kaistha carried out construc- tion ...
Page 143
... tunnel alignment alternative II indicated the availability of sufficient rock cover along the tunnel alignment in this reach . Further exploratory programmes bedrock condition at the tunnel , intake , exit and the power house area . LAH ...
... tunnel alignment alternative II indicated the availability of sufficient rock cover along the tunnel alignment in this reach . Further exploratory programmes bedrock condition at the tunnel , intake , exit and the power house area . LAH ...
Page 145
... tunnel has been excavated upto a depth of 24m from a general elevation of 430m . The shaft is supported by ribs , rock - bolting and shotcrete . Progressively with excavations , 3 - D geological logging has been carried out . The shaft ...
... tunnel has been excavated upto a depth of 24m from a general elevation of 430m . The shaft is supported by ribs , rock - bolting and shotcrete . Progressively with excavations , 3 - D geological logging has been carried out . The shaft ...
Contents
OFF SHORE MINERAL EXPLORATION AND MARINE GEOLOGY DIVISION | 63 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 75 |
VI EASTERN REGION 165 | 165 |
Copyright | |
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amphibolite analysis Andhra Pradesh anomaly zones apatite Asstt bands basin belt Bihar biotite block boreholes Calcutta carried chlorite clay Coalfield coarse collected core covered Deccan basalts Deccan Trap deposits depth dips Director DISTRICT Division dolomite drilling Dubrajpur exposed fault folds foliation Formation fossils geochemical Geol geological mapping Geological Survey Geologist Geologist Jr geotechnical Ghosh gneiss Gondwana grade granite gneiss grey Group Gupta indicated laboratory laterite limestone lineament lineation located logging Madhya Pradesh magnetic magnetite mapped an area metamorphism metres migmatites million tonnes mineralisation minerals nala occur Orissa pegmatite phyllite Plate Project pyrite quartz quartz veins quartzite Rajasthan Region river rock types S/Shri samples sandstone scale schist schistosity sector sequence shale shear zone Shri Singh Singhbhum sq km Srivastava strike length structural studies sulphide surface Survey of India thickness tion toposheet traverses trending upto volcanics