Records of the Geological Survey of India, Volume 114Geological Survey of India, 1986 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 92
... tunnel is to pass through . The underground structures , like the surge shaft , penstocks etc. , are located in hard biotite gneiss . The exploration , by the drifts and bore holes , from the surface indicate presence of shear zones of ...
... tunnel is to pass through . The underground structures , like the surge shaft , penstocks etc. , are located in hard biotite gneiss . The exploration , by the drifts and bore holes , from the surface indicate presence of shear zones of ...
Page 93
... tunnels are to be driven throuth this stretch . The central tunnel has already been completed . The excavation for two side stones , clays and boulder conglomerates of the Lower , tunnels are in progress . Andotra logged 785.7 m of ...
... tunnels are to be driven throuth this stretch . The central tunnel has already been completed . The excavation for two side stones , clays and boulder conglomerates of the Lower , tunnels are in progress . Andotra logged 785.7 m of ...
Page 96
... tunnel which has been struck up at RD 3049 m has been tackled successfully and the tunnel excavation progressed satisfactorily . They further report that the drainage gallery around the surge shaft was excavated upto RD 156m through the ...
... tunnel which has been struck up at RD 3049 m has been tackled successfully and the tunnel excavation progressed satisfactorily . They further report that the drainage gallery around the surge shaft was excavated upto RD 156m through the ...
Contents
CENTRAL HEADQUARTERS | 5 |
STRATIGRAPHY AND PALAEONTOLOGY DIVISION | 14 |
INTERNATIONAL WING | 23 |
Copyright | |
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Common terms and phrases
alignment amphibolite analysis Andhra Pradesh anomaly Asstt bands basalt bed rock belt Bihar biotite block boreholes Calcutta carried chalcopyrite chemical Circle clay coalfield comprising core Dam Project Deccan Trap depth dips Director DISTRICT Division dolomite drill holes dykes excavation exploration exposed fault foliation Formation geochemical geological mapping Geologist Jr geotechnical investigation geothermal Ghosh gneiss Gondwana grade granite gneiss grey Group Headquarters HIMACHAL PRADESH Hydel Project Hydel Scheme indicated Jammu Karnataka km long Kumar Laboratory limestone line km lineaments located logged Lucknow magnetic magnetite mapped an area mica mineralisation minerals nala occur Orissa pegmatite phyllite pits power house Pradesh proposed pyrite quartz quartzite Region river rock types S/Shri samples were collected sandstone scale schist seams sediments shale shear zone Shri siltstone Singh slate spillway sq km Srivastava strike length studies Survey of India thickness tion tonnes toposheet traverse trending upto valley volcanic