Records of the Geological Survey of India, Volume 89Geological Survey of India, 1961 - Earthquakes |
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Page 465
... grains are considered sufficient for such studies ( Poldervaart and von Backstrom , 1950 , pp . 436-437 ) . In the present investigation about 100 grains were measured in each slide , broken grains being excluded . Lengths , breadths ...
... grains are considered sufficient for such studies ( Poldervaart and von Backstrom , 1950 , pp . 436-437 ) . In the present investigation about 100 grains were measured in each slide , broken grains being excluded . Lengths , breadths ...
Page 466
... grains is fairly high ( ranging mostly between ( 2.5 and 5 0 ) . Euhedral grains are only subordinate in the Athgarh Sand- stone . Identifiable crystal faces in euhedral grains comprise prisms of first ( 110 ) and second order ( 100 ) ...
... grains is fairly high ( ranging mostly between ( 2.5 and 5 0 ) . Euhedral grains are only subordinate in the Athgarh Sand- stone . Identifiable crystal faces in euhedral grains comprise prisms of first ( 110 ) and second order ( 100 ) ...
Page 467
... grains are also given below : TABLE V. L / B Sample No. 1-2 2-3 3-4 1 . 68 2 . 77 3 . 80 4 . 72 81 82 28 4 19 4 18 2 21 7 5 . 82 14 4 About 70 to 80 per cent . of the zircon grains are only slightly elongated . Even among the moderately ...
... grains are also given below : TABLE V. L / B Sample No. 1-2 2-3 3-4 1 . 68 2 . 77 3 . 80 4 . 72 81 82 28 4 19 4 18 2 21 7 5 . 82 14 4 About 70 to 80 per cent . of the zircon grains are only slightly elongated . Even among the moderately ...
Contents
OF | 1 |
MINERAL INVESTIGATIONS | 69 |
GEOPHYSICAL INVESTIGATIONS | 138 |
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42nd Indian Sci abstract abutment alignment alluvium Andhra aquifers Archegosaurus B.Sc bands beds Bihar Bombay boreholes Calcutta Chatterjee clay coal coalfield colour Congr copper Deccan Trap deposits depth district district.-Mr Ditto dolerite drilling dykes East examined feet formations fossils G. S. I. Type Geol geological mapping Geological Survey Geologist Geophysical gneisses Gondwana granite groundwater Hazra hill Hyderabad India Indian Ceram Indian Miner industry investigated Krishnaswamy laterite lignite limestone located Lystrosaurus M. R. Sahni M.Sc Madhya Bharat Madhya Pradesh Madras Mineral Development Mines Mysore nala occur Orissa Panchet pegmatites phyllites Proc Project quarry quartz quartzites Rajasthan region ridge right bank river rocks samples sand sandstones schists seam Section shales specimen square miles Survey of India taluk thick tion topo-sheets tubewells Upper Uttar Pradesh Valley veins village Vindhya Vindhya Pradesh water supply zircon zone