Records of the Geological Survey of India, Volume 91The Survey, 1962 - 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 41
... veins consist of coarse , white barytes which is stained red or brown . Quartz , chalcopyrite , and fluorite , in ... veins filling fault fissures . The veins range from a few inches to 30 inches in thickness , but their extension is not ...
... veins consist of coarse , white barytes which is stained red or brown . Quartz , chalcopyrite , and fluorite , in ... veins filling fault fissures . The veins range from a few inches to 30 inches in thickness , but their extension is not ...
Page 94
... veins are large and consist of almost pure silica . The silica content of the veins varies from 98-17 to 98-73 per cent , and Fe , O , from 0.20 to 0.50 per cent . The reserves have been estimated at about 1.99 million tons , up to a ...
... veins are large and consist of almost pure silica . The silica content of the veins varies from 98-17 to 98-73 per cent , and Fe , O , from 0.20 to 0.50 per cent . The reserves have been estimated at about 1.99 million tons , up to a ...
Page 312
... veins and the biotite gneisses ( which are now altered to laterite ) near the quartz veins , contain fine disseminations of gold . About a hundred pounds of sand from the bed of Ambankadavu Puzha in Tenkara ( 11 ° 00 ′ : 76 ° 29 ...
... veins and the biotite gneisses ( which are now altered to laterite ) near the quartz veins , contain fine disseminations of gold . About a hundred pounds of sand from the bed of Ambankadavu Puzha in Tenkara ( 11 ° 00 ′ : 76 ° 29 ...
Contents
Part | 1 |
MINERAL INVESTIGATIONS | 38 |
ENGINEERING GEOLOGY AND GROUNDWATER SECTION | 99 |
Copyright | |
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43rd Indian Sci abstr Andhra B.Sc Bagh beds bands Baripada Bhaluk Khad Bihar biotite Bombay borehole Bose Cambrian cent charnockite Circle clay coal coalfield Congr Coralline limestone Cretaceous Deccan Trap Delhi deposits depth district Dolerite drilling Dutt Dutta East Economic Geology Section examined feet felspar formations fossils Geol geological mapping Geological Survey Geophysical gneiss gold Gondwana grains granite gravel Groundwater Headquarters Calcutta Himalayan hornblende Hyderabad ilmenite India industry investigated iron-ore laterite lignite lode Lower M.Sc Madhya Pradesh Madras magnetite miles minerals mining Murthy Mysore nala occur Orissa palaeolithic phyllites pitchstone Proc Punjab quartz quartzites Rajasthan Raniganj region reported river rocks Sahni samples sand sandstone Sarvashri Sastry schists sediments shales Shri soil spore Srivastava Surv Survey of India taluk thickness thin topo-sheets trap Upper Valley veins village Vindhyan West Bengal zone