Records of the Geological Survey of India, Volume 87, Part 1The Survey, 1953 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 13
... occur often infolded with mica - schists and sometimes grade into marble and hornblende - schists . They usually contain diopside , actinolite , biotite , calcite and microcline . Within the calc - gneisses occur two narrow bands of ...
... occur often infolded with mica - schists and sometimes grade into marble and hornblende - schists . They usually contain diopside , actinolite , biotite , calcite and microcline . Within the calc - gneisses occur two narrow bands of ...
Page 14
... occur as thin lenticular bands within calc - gneisses and hornblende - schists . They are pale green on fresh surfaces due to the presence of minor amounts of diopside and brown on weathered surfaces . Younger granites and gneisses occur ...
... occur as thin lenticular bands within calc - gneisses and hornblende - schists . They are pale green on fresh surfaces due to the presence of minor amounts of diopside and brown on weathered surfaces . Younger granites and gneisses occur ...
Page 36
... occur chiefly on the main Parasnath massif . The acidic gneisses occur widely in the western part with frequent inclusions of amphibolites etc. Patches of coarse - texture , banded gneisses occur in the south - western part of the area ...
... occur chiefly on the main Parasnath massif . The acidic gneisses occur widely in the western part with frequent inclusions of amphibolites etc. Patches of coarse - texture , banded gneisses occur in the south - western part of the area ...
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Common terms and phrases
30 feet abutment alluvium ANON ANON ANON April Archaean Assistant Geologist B. C. Roy Balaghat district bands belt Bihar Bijapur district Bombay bore-holes carried charnockite Circle office clay coal coalfield dam-site Darjeeling Deccan Trap December deposits depth dolerite drilling dykes east Economic Geology Section examined excavation exploratory field training camp foliation fossils furlongs Geological Assistant Geophysical Ghosh gneisses Gondwana grade granite ground-water Hazaribagh district hill holes Hyderabad Indian Miner investigation Kutch laterite left bank Left for field limestone Madhya Pradesh Madras manganese manganese-ore Messrs mica miles Mines nala Northern Circle November occur Orissa outcrops pegmatites Petrological Section phyllites quarries quartz veins quartzites Rajasthan reported Resident Geologist Returned to Calcutta Returned to Circle Returned to headquarters ridge right bank river bed rocks samples sand sandstones schists seam shales sheet Superintending Geologist systematic mapping taluk Tertiary tube-wells upstream yield zone