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 . width of the outcrops varies from 24 to 244 metres ...
... 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 . width of the outcrops varies from 24 to 244 metres ...
Page 262
... Hematite . It is abundant in ores in which ilmenite has broken down into rutile and hematite , occurring commonly as thin ( 0.002 mm . across ) micro- seams and , rarely , in plates 0 ยท 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 ( 0.002 mm . across ) micro- seams and , rarely , in plates 0 ยท 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 ...
Contents
GEOLOGICAL SURVEY OF INDIA | 190 |
STRUCTURE | 200 |
SUMMARY AND CONCLUSIONS | 209 |
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amphibole amphibole bearing quartzites amphibolites amygdaloidal aperture Balasore banded magnetite-hematite quartzites basalts beds biotite calcite cent chambers chondrules colour convolute laminations Cretaceous Deccan Traps deposits 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 gneisses grade grains granites grey quartzites heavy mineral hematite hornblende ilmenite intergrowth Kalahandi kilometres kyanite length Lenticulina limestone magnetite manganese content manganese-ore manganiferous khondalite Marginulina massive trap meta-intrusives meta-sediments metamorphism metres metres long metres wide Nishkhal occur old dunes olivine opaques outcrop pebbles phenocrysts plagioclase porphyritic porphyritic trap pyroxenes quartz quartzites Reuss ridge rutile samples sand dunes schistosity sediments shales siliceous sillimanite Soft vesicular species Subarnarekha Subarnarekha river Survey of India sutures thickness thin trend Utatur stage veins vesicles vesicular trap white gritty quartzites width Yerabali zircon