Records of the Geological Survey of India, Volume 89Government of India, 1961 - 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 459
... grains of epidote are developed in sections of some of the dykes ( Sec . Nos . 29405 , 29406 , 29412 , 29420 ) . It is thus evident that , plagioclase gets saussuritised even when the uralitization of augite is only incipient . However ...
... grains of epidote are developed in sections of some of the dykes ( Sec . Nos . 29405 , 29406 , 29412 , 29420 ) . It is thus evident that , plagioclase gets saussuritised even when the uralitization of augite is only incipient . However ...
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 467
... grains are also given below : TABLE V. L / B Sample No. 1-2 2-3 3-4 1 . 89 68 28 4 2 . 77 19 4 3 . 80 18 2 4 . 72 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 . 89 68 28 4 2 . 77 19 4 3 . 80 18 2 4 . 72 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
GEOLOGICAL SURVEY | 1 |
PAGES | 46 |
MINERAL INVESTIGATIONS | 69 |
Copyright | |
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42nd Indian Sci abutment alignment alluvium Andhra aquifers Archegosaurus B.Sc bands Barakar beds Bihar biotite Bombay boreholes Calcutta Chatterjee clay coal seams coalfield colour conglomerate Congr copper Cretaceous Damuda Deccan Trap deposits depth district district.-Mr Ditto dolerite drilling dykes east examined exposed fault feet felspar ferruginous formations fossils furlongs G. S. I. Type Geol geological mapping Geological Survey Geologist gneisses Gondwana granite groundwater Hazra hill Hyderabad investigated laterite lignite limestone located Lower Lystrosaurus M. R. Sahni M.Sc Madhya Pradesh Madras magnetite Messrs Murthy Mysore nala occur Orissa outcrops Panchet pegmatites phyllites Proc quarry quartz quartz veins quartzites Rajasthan region reported ridge river rocks samples sand sandstones Sastry schists sediments seen shales Sinha specimen square miles Survey of India taluk thickness tion topo-sheets tubewells Unconformity Upper Valley village Vindhya Vindhya Pradesh water supply zone