Records of the Geological Survey of India, Volume 87, Part 1 - Volume 88, Part 1The Survey, 1958 - Earthquakes |
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Page 127
... tons of ore , containing up to 45-50 % Mn . , may be available within a depth of 30 feet . The larger open casts measure 300 feet × 40-50 feet x 10-12 feet , 200 feet × 30-40 feet x 10-12 feet and 100 feet x 40 feet x x feet . In a ...
... tons of ore , containing up to 45-50 % Mn . , may be available within a depth of 30 feet . The larger open casts measure 300 feet × 40-50 feet x 10-12 feet , 200 feet × 30-40 feet x 10-12 feet and 100 feet x 40 feet x x feet . In a ...
Page 128
... tons of ore , containing up to 40 % Mn . on an average , may be available within 40 feet from the surface , on the basis of 100 feet as the width of mineralisation . The recent output from old debris and quarries averages 20 tons daily ...
... tons of ore , containing up to 40 % Mn . on an average , may be available within 40 feet from the surface , on the basis of 100 feet as the width of mineralisation . The recent output from old debris and quarries averages 20 tons daily ...
Page 145
... tons per day . The notable features achieved during the last two years comprise increase in lead recovery to 90 ... tons 1952-53 36,170 tons 1953-54 46,754 tons ( 5.62 % Pb ) ( 4.50 % Pb ) ( 4.93 % Pb ) ( 8.00 % Zn ) ( 6.70 % Zn ) ( 6.19 ...
... tons per day . The notable features achieved during the last two years comprise increase in lead recovery to 90 ... tons 1952-53 36,170 tons 1953-54 46,754 tons ( 5.62 % Pb ) ( 4.50 % Pb ) ( 4.93 % Pb ) ( 8.00 % Zn ) ( 6.70 % Zn ) ( 6.19 ...
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40th Indian Sci abutment alignment alluvium amphibolites ANON ANON ANON Archaean Assistant Geologist B. C. Roy bands Barakar belt Bihar Bijapur district biotite biotite-schists Bombay bore-holes boulders charnockites Circle clay coal seams coalfield conglomerate Cuddapah dam-site Deccan Trap deposits depth dolerite dolomite drilling Dutt east eastern examined exposed feet thick felspathic ferruginous folded foliation formations fossils furlongs Geological Survey Ghosh gneisses Gondwana grade granite gneiss grey Hazaribagh district hill hornblende hornblende-schists inches India intrusive investigated Kaladgi Khola Kutch laterite lignite limestone Madhya Madras manganese manganese-ore Messrs mica mica-schists mineral mining nala occur outcrops pegmatites phyllites pits portion Pradesh Proc quarries quartz quartz veins quartzites Rajasthan reports the occurrence ridge right bank river bed rock types samples sand sandstones Saurashtra schists shales Siwaliks soil square miles strike systematic mapping taluk Tertiary thin tons topo tube-wells Upper valley zone