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 332
... grains with major axis more than twice the minor axis ranges from 10 to 20 per cent .; but it reduces rapidly with the reduction in the size grade of the material . Percentage of quartz in the deposit varies from 70 to 90 and in some ...
... grains with major axis more than twice the minor axis ranges from 10 to 20 per cent .; but it reduces rapidly with the reduction in the size grade of the material . Percentage of quartz in the deposit varies from 70 to 90 and in some ...
Page 376
... grains : 110-132 microns . Discussion . - Occurs throughout the Lower Gondwana sediments . Com- pares with Florinites eremus B. & H. ( 1955 ) . ( 9 ) Florinites sp . 2 ( Pl . 13 , fig . 21 ) . Body of the grain sub - circular to sub ...
... grains : 110-132 microns . Discussion . - Occurs throughout the Lower Gondwana sediments . Com- pares with Florinites eremus B. & H. ( 1955 ) . ( 9 ) Florinites sp . 2 ( Pl . 13 , fig . 21 ) . Body of the grain sub - circular to sub ...
Page 396
... grains , in all cases , show a high degree of roundness . They form a tight and compact rock with very little porosity . The chert grains are also rounded , and have fine granular or mosaic texture . Some grains show spherulitic ...
... grains , in all cases , show a high degree of roundness . They form a tight and compact rock with very little porosity . The chert grains are also rounded , and have fine granular or mosaic texture . Some grains show spherulitic ...
Contents
GEOLOGICAL SURVEY OF INDIA | 1 |
Western Circle | 25 |
Jammu and Kashmir Circle | 35 |
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43rd Indian Sci Andhra B. C. Roy B.Sc Bagh beds Banaras bands Banerjee Baripada Bhaluk Khad Bihar Bombay borehole Bose cent charnockite Chaterji Circle clay coal coalfield Congr Coralline limestone Cretaceous Delhi deposits depth district Dolerite drilling Dutt Dutta East Economic Geology Economic Geology Section examined feet felspar formations fossils Geol geological mapping Geological Survey Geophysical Geophysicist Ghosh gneiss gold Gondwana grains granite gravel Groundwater Groundwater Exploration Headquarters Calcutta Hons hornblende Hyderabad India industry investigated iron-ore Kashmir laterite lignite lode Lucknow M.Sc Madhya Pradesh Madras miles minerals Mining Murthy Mysore nala occur Orissa palaeolithic Petrological Section phyllites pitchstone Proc Punjab quartz quartzites Rajasthan Raniganj region river rocks Sahni samples sand sandstone Sarvashri Sastry schists shales Shri soil spore Srivastava Superintending Geologist Surv Survey of India taluk thickness trap Upper veins village Vindhyan West Bengal zone