Records of the Geological Survey of India, Volume 87, Part 1 - Volume 88, Part 1The Survey, 1958 - Earthquakes |
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Page 87
... ridge composed of highly folded and contorted biotite - schists , partly talcose , intruded by a 200 - foot thick beryliferous tourmaline - pegmatite forming a ridge top , besides other minor pegmatites . One 20 - foot wide pegmatite ...
... ridge composed of highly folded and contorted biotite - schists , partly talcose , intruded by a 200 - foot thick beryliferous tourmaline - pegmatite forming a ridge top , besides other minor pegmatites . One 20 - foot wide pegmatite ...
Page 108
... ridge , and some associated basic rocks , vein granite and vein quartz , the greater part of the ridge ( about 75 % ) is composed of limestone ( grey ) , calciphyre ( greyish green ) and marble greyish white ) . The rocks strike between ...
... ridge , and some associated basic rocks , vein granite and vein quartz , the greater part of the ridge ( about 75 % ) is composed of limestone ( grey ) , calciphyre ( greyish green ) and marble greyish white ) . The rocks strike between ...
Page 186
About half a mile west of the main ridge is another low ridge , over half a mile long , comprising a zone of a light grey or dark . banded or variegated marble , 50 to 100 yards in width , roughly strik- ing N.-S. The terrain between ...
About half a mile west of the main ridge is another low ridge , over half a mile long , comprising a zone of a light grey or dark . banded or variegated marble , 50 to 100 yards in width , roughly strik- ing N.-S. The terrain between ...
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Common terms and phrases
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