Records of the Geological Survey of India, Volume 94The Survey, 1959 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 196
... represented by amphibolites and pyroxenites , are taken to be older than the granites and gneisses , as they have been folded and metamorphosed similar to the meta- sediments during the orogenic movements and have also been truncated by ...
... represented by amphibolites and pyroxenites , are taken to be older than the granites and gneisses , as they have been folded and metamorphosed similar to the meta- sediments during the orogenic movements and have also been truncated by ...
Page 223
... represented by means of histograms and cumulative curves , which bring out a clear picture of the grain - size ... represents an average which is the most abundant , and there- fore , the most typical grain in the distribution . All the ...
... represented by means of histograms and cumulative curves , which bring out a clear picture of the grain - size ... represents an average which is the most abundant , and there- fore , the most typical grain in the distribution . All the ...
Page 226
... represented by two species , viz . , actinolite and common hornblende , the latter being the dominant type in most cases . Actinolite is pleochroic from pale green to colourless and shows extinc- tion angle of 18 ° . The deep green ...
... represented by two species , viz . , actinolite and common hornblende , the latter being the dominant type in most cases . Actinolite is pleochroic from pale green to colourless and shows extinc- tion angle of 18 ° . The deep green ...
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Common terms and phrases
Ajanta Caves amphibole amphibole bearing quartzites amygdaloidal assemblage Balasore Balasore coast basalts beds biotite calc-silicate rocks calcite cent chambers chondrules Coarse colour convolute laminations Cretaceous crystals Deccan Traps dipping district dolerites dune sands dykes east enstatite felspar ferruginous Figured specimen flows folds foraminifera formations G.S.I. Type garnet Genus Geol Geological Geologist Gir forest grade grains granites heavy mineral hematite hills hornblende ilmenite intergrowth kilometres kyanite length Lenticulina limestone magnetite manganese manganese content manganiferous khondalite Marginulina massive trap meta-sediments metamorphism meteorite metres metres long metres wide nala Nishkhal north-west occur old dunes olivine opaques Orissa outcrop phenocrysts plagioclase porphyritic porphyritic trap pyroxenes quartz quartzites Rajasthan Reuss ridge rutile samples sand dunes Sastry schistosity sediments shales siliceous sillimanite Soft vesicular species Subarnarekha river Surv sutures thickness thin trend Trichinopoly Utatur stage veins vesicles vesicular trap width zircon