Records of the Geological Survey of India, Volume 105The Survey, 1970 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 65
... veins are upto 2 m . long and upto a few centimetres thick . Longer veins are also known , such as those in Lahaul area . Chalcopyrite veins upto 4 cm . thick are associated with calcite veins in the Phe nala . Much thicker veins , upto ...
... veins are upto 2 m . long and upto a few centimetres thick . Longer veins are also known , such as those in Lahaul area . Chalcopyrite veins upto 4 cm . thick are associated with calcite veins in the Phe nala . Much thicker veins , upto ...
Page 190
... veins . The foliation trend in the rocks is mainly E.N.E.-W.S.W. with local variations to N.E.- S.W. , E.-W. and N.N.E.-S.S.W. with steep dips to the south . The graphite veins are localised along thin pegmatite veins following the ...
... veins . The foliation trend in the rocks is mainly E.N.E.-W.S.W. with local variations to N.E.- S.W. , E.-W. and N.N.E.-S.S.W. with steep dips to the south . The graphite veins are localised along thin pegmatite veins following the ...
Page 267
... veins of an average width of 10-15 cm , within 10 m width of such bands , the veins extending parallel to the strike of the bands . There are also veins which are almost perpendicular to the strike of the formations . All these quartz veins ...
... veins of an average width of 10-15 cm , within 10 m width of such bands , the veins extending parallel to the strike of the bands . There are also veins which are almost perpendicular to the strike of the formations . All these quartz veins ...
Contents
CENTRAL HEADQUARTERS | 1 |
NORTHERN REGION | 46 |
Engineering and Transport Division | 436 |
Copyright | |
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abutment alignment alluvium amphibolite Andhra Pradesh Archaean bands Banerjee basalt bauxite bedrock Bihar biotite block boreholes carried out systematic charnockite clay coal Coalfield copper Deccan Trap deposits depth to water dips Director district Division dolerite dolomite drill holes Dutta Engineer examined exploration exposed fault folds foliation Formation geochemical geohydrological geological mapping Geologists Jr geophysical Ghosh gneisses grade granite groundwater grouting Himachal Pradesh Hydel indicated investigation Jammu Kashmir km on scale Laboratory laterite limestone located logging Madhya Pradesh mapped an area mapped on scale meterage metres million tonnes Mineral mineralisation Mysore nala occur pegmatite phosphorite phyllite pits power house Project pyrite quartz veins quartzite RAJASTHAN recommended Region river rock types samples sandstone Sarvashri schist seams sediments shale Sharma shear zones Shri Singh slate spillway sq km Srivastava strike length studies surveys systematic geohydrological taluk thickness Topo topo-sheets traverse trending tubewells tunnel underlain upto Uttar Pradesh