Records of the Geological Survey of India, Volume 107The Survey, 1976 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
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Page 193
... cores from 32 drill holes of the dam sites . The cores are from granite gneiss having high compressive strength and low absorption properties . Foundation grade rock is available within 5 m depth . However , grouting has been ...
... cores from 32 drill holes of the dam sites . The cores are from granite gneiss having high compressive strength and low absorption properties . Foundation grade rock is available within 5 m depth . However , grouting has been ...
Page 196
... core of the dam and the cut - off portion . Kala Irrigation Project : N. C. Bhattacharya examined 33.04 m depth of cores from 3 drill holes of the dolerite dyke which constitutes the rock type in the area with fresh rock level varying ...
... core of the dam and the cut - off portion . Kala Irrigation Project : N. C. Bhattacharya examined 33.04 m depth of cores from 3 drill holes of the dolerite dyke which constitutes the rock type in the area with fresh rock level varying ...
Page 347
... cores of 26 holes drilled along the tunnel alignment . Series of ' Pahoehoe ' sheets with amygdular margin and dense core are met with down to R.L. 55.925 m . Besides three basalt dykes trending N60W - S60E , with 70 ° dip towards S30W ...
... cores of 26 holes drilled along the tunnel alignment . Series of ' Pahoehoe ' sheets with amygdular margin and dense core are met with down to R.L. 55.925 m . Besides three basalt dykes trending N60W - S60E , with 70 ° dip towards S30W ...
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amphibolite Andhra Pradesh Archaean bands basalt basin bauxite beds Bihar biotite block boreholes carried chalcopyrite chlorite clay Coalfield conglomerate copper cores Deccan Trap Delhi deposits depth Director district Division dolerite drilling epidote exposed felspar folds formation fossil galena geochemical Geol geological mapping Geological Survey Geologists Jr geophysical Ghosh Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grade grained granite gneiss greenish greenstone belts grey Group hill holes horizon indicated investigation Kashmir Kurnool laterite limestone Lower mapped an area metamorphism mineralisation minerals occur Panjal trap pegmatite phyllite pits Project pyrite quartz quartz veins quartzite Quaternary Rajasthan Raniganj regional river rock types samples sand sandstone Sarvashri scale schist schistose seams sediments shale shear zone Shri Singh Siwalik spillway sq km Srivastava stratigraphic studies sulphide Survey of India thickness traverse trending tunnel unconformity Upper upto valley varies Vindhyan