Records of the Geological Survey of India, Volume 94, Issue 2The Survey, 1966 - Earthquakes |
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amphibole amygdaloidal analysis appear assemblage associated bands basalts base bearing beds biotite Cave cent chambers chondrules closely collected colour common contain convolute Cretaceous crystals Cushman dark deposits described dipping distinct district dune sands east exposed felspar Figured flows folds formations Geol Geological grade grains granites grey Hard heavy mineral hematite hills ilmenite India indicate joints khondalite kilometres laminations length less limestone locality lower magnetite mainly manganese manganese-ore manganiferous massive material metamorphism metres minor northern noticed occur olivine opaques outcrop phenocrysts places portion present quartz quartzites range recorded region represented ridge river rocks rounded rutile samples sand dunes sediments seen side siliceous sillimanite similar species specimen stage strike structure suggests TABLE Test thickness thin trap trend usually Utatur varies veins vesicular Volume width zircon