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
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 Congr Coralline limestone Cretaceous Deccan Trap Delhi deposits depth district Dolerite drilling Dutta East Economic Geology Section examined feet felspar formations fossils Geol Geological Survey Geologist Geophysical gneiss gold Gondwana grains granite gravel Groundwater Headquarters Calcutta Himalayan hornblende Hyderabad India industry investigated iron-ore Kashmir laterite LELAND lignite lode Lower M.Sc Madhya Pradesh Madras magnetite mapping miles minerals mining Murthy Mysore nala occur Orissa palaeolithic Petrological phyllites pitchstone Proc Punjab quartz quartzites Rajasthan Raniganj region reported river rocks samples sand sandstone Sarvashri Sastry schists sediments shales Shri soil spore Srivastava STANFORD Surv Survey of India taluk thickness thin topo-sheets trap Upper Valley veins village Vindhyan West Bengal zone