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 213
... usually porphyritic , the phenocrysts being usually of greyish white basic felspar and less commonly of olivine . The hard basic rocks are usually well jointed . Basaltic flows . Many of the basalts are highly weathered when they are of ...
... usually porphyritic , the phenocrysts being usually of greyish white basic felspar and less commonly of olivine . The hard basic rocks are usually well jointed . Basaltic flows . Many of the basalts are highly weathered when they are of ...
Page 214
... usually devitrified . Magnetite occurring both as dust and as granules is the impor- tant accessory . Fluxion structure is clearly seen in some micro - sections . Small oval or circular isotropic minerals are suggestive of leucite . The ...
... usually devitrified . Magnetite occurring both as dust and as granules is the impor- tant accessory . Fluxion structure is clearly seen in some micro - sections . Small oval or circular isotropic minerals are suggestive of leucite . The ...
Page 217
... usually intrusive as dykes and cut across the basic dykes . They are developed in some force to the west , east and south - east of Bedia ( 20 ° 59 ′ : 71 ° 07 ′ ) and also in the low ridges to the east of the Khambha road , between ...
... usually intrusive as dykes and cut across the basic dykes . They are developed in some force to the west , east and south - east of Bedia ( 20 ° 59 ′ : 71 ° 07 ′ ) and also in the low ridges to the east of the Khambha road , between ...
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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