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 14
... Pegmatites and rarely quartz veins are found in mica - schists and in some outcrops of marble , calc - gneisses and hornblende - schists . The pegmatites are usually small and unsegregated . Mica or beryl bearing pegmatites have not ...
... Pegmatites and rarely quartz veins are found in mica - schists and in some outcrops of marble , calc - gneisses and hornblende - schists . The pegmatites are usually small and unsegregated . Mica or beryl bearing pegmatites have not ...
Page 16
... pegmatites . The calc - gneiss is succeeded by a compact , recrystallised , reddish- brown quartzite striking N.E.-S.W. with steep dips towards north - west and south - east . This quartzite constitutes a part of the Kalpahar Dungri and ...
... pegmatites . The calc - gneiss is succeeded by a compact , recrystallised , reddish- brown quartzite striking N.E.-S.W. with steep dips towards north - west and south - east . This quartzite constitutes a part of the Kalpahar Dungri and ...
Page 87
... pegmatite forming a ridge top , besides other minor pegmatites . One 20 - foot wide pegmatite shows small or big xenoliths of biotite - schists with emerald . Emerald is also found in a thick zone of biotite - schists , adjacent of the ...
... pegmatite forming a ridge top , besides other minor pegmatites . One 20 - foot wide pegmatite shows small or big xenoliths of biotite - schists with emerald . Emerald is also found in a thick zone of biotite - schists , adjacent of the ...
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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