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 233
... Zircons were separated from the non- magnetic concentrate ( mainly sillimanite , kyanite , and zircon ) obtained on a Frantz Isodynamic Separator , using Clerici solution of specific gravity 3.6 . 300-400 zircon grains were counted and ...
... Zircons were separated from the non- magnetic concentrate ( mainly sillimanite , kyanite , and zircon ) obtained on a Frantz Isodynamic Separator , using Clerici solution of specific gravity 3.6 . 300-400 zircon grains were counted and ...
Page 238
Geological Survey of India. 33 Zircon studies . - Most of the zircons are colourless. Sample No. TABLE 4 Non - Opaque Heavy Mineral Assemblage of Exploratory Borcholes , Balasore . Sillimanite . Kyanite . Epidote . Staurolite . Garnet .
Geological Survey of India. 33 Zircon studies . - Most of the zircons are colourless. Sample No. TABLE 4 Non - Opaque Heavy Mineral Assemblage of Exploratory Borcholes , Balasore . Sillimanite . Kyanite . Epidote . Staurolite . Garnet .
Page 240
Geological Survey of India. Zircon studies . - Most of the zircons are colourless ; coloured and zoned grains form less than 1 per cent . of the zircons present . About 2 per cent . of the zircons show abrasion . The zircons can be ...
Geological Survey of India. Zircon studies . - Most of the zircons are colourless ; coloured and zoned grains form less than 1 per cent . of the zircons present . About 2 per cent . of the zircons show abrasion . The zircons can be ...
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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