Records of the Geological Survey of India, Volume 85Geological Survey of India, 1954 - 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 358
... texture . The chondritic structure is very apparent in micro - section though not readily visible to the unaided eye . Al , Ca , Cr , Co , Cu , Fe , Ga , Ge , Mg , Na , Ni and Si have been detected spectrographically . It is an aerolite ...
... texture . The chondritic structure is very apparent in micro - section though not readily visible to the unaided eye . Al , Ca , Cr , Co , Cu , Fe , Ga , Ge , Mg , Na , Ni and Si have been detected spectrographically . It is an aerolite ...
Page 365
... texture and mineral composition the granitic intrusions show a close resem- blance to the biotite - granite - gneiss and are chiefly made up of an acid plagio- clase ( oligoclase ) , quartz , orthoclase and microcline . The pegmatites ...
... texture and mineral composition the granitic intrusions show a close resem- blance to the biotite - granite - gneiss and are chiefly made up of an acid plagio- clase ( oligoclase ) , quartz , orthoclase and microcline . The pegmatites ...
Page 371
... texture of the ore is variable , but usually coarse , so that the magnetite can be easily concentrated by electro - magnet after crushing to a suitable size ( 10 mesh or finer ) . A little hematite and amphibole are associated with the ...
... texture of the ore is variable , but usually coarse , so that the magnetite can be easily concentrated by electro - magnet after crushing to a suitable size ( 10 mesh or finer ) . A little hematite and amphibole are associated with the ...
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38th Indian Sci Ajmer-Merwara alluvium Assam Assistant Geologist bands Belgaum Bihar Bombay Calcutta cent charnockites clay coal coalfields Congr copper Cuddapah days with effect Deccan trap Delhi deposits depth Dharwar Dhenkanal district district dolerite dolomite drilling dykes east examined exported feet G. W. Division Geol geological mapping Geological Survey geophysical gneisses Gondwana grade granite ground-water hill India Indian Miner industry investigation Iron-ore irrigation Kaladgi Keonjhar Kurnool Kurnool district Kutch laterite limestone M. S. Krishnan Madhya Pradesh Madras Magnesite manganese manganese-ore Mehta Messrs Metal Mkt mica million tons mines Mysore nala November occur Orissa output pegmatites phyllites pits Proc production quantity quarried quartz quartzites Rajasthan reported Returned to Circle Returned to headquarters river rocks samples sand sandstones Saurashtra schists shales sheet 73 Singhbhum square miles steatite Survey of India taluk thick tons valued veins village Vindhya Pradesh