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 195
... hematite quartzites within the grey quartzites occur as a continuous band extending from 1574 to 2169 ridge and as a minor band at the eastern and north - eastern slopes of 1574 ridge . The width of the outcrops varies from 24 to 244 ...
... hematite quartzites within the grey quartzites occur as a continuous band extending from 1574 to 2169 ridge and as a minor band at the eastern and north - eastern slopes of 1574 ridge . The width of the outcrops varies from 24 to 244 ...
Page 262
... Hematite . It is abundant in ores in which ilmenite has broken down into rutile and hematite , occurring commonly as thin ( 0 ยท 002 mm . across ) micro- seams and , rarely , in plates 0-008 mm . across . Martitisation , along octa ...
... Hematite . It is abundant in ores in which ilmenite has broken down into rutile and hematite , occurring commonly as thin ( 0 ยท 002 mm . across ) micro- seams and , rarely , in plates 0-008 mm . across . Martitisation , along octa ...
Page 263
... hematite intergrowth . The following features are noteworthy : ( 1 ) blebs of rutile in graphic intergrowth with ilmenite are always acccompanied by hematite ; ( 2 ) hematite ( not martite ) occurs only in close association with these ...
... hematite intergrowth . The following features are noteworthy : ( 1 ) blebs of rutile in graphic intergrowth with ilmenite are always acccompanied by hematite ; ( 2 ) hematite ( not martite ) occurs only in close association with these ...
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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