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 262
... noted in any single grain of the host and ( 2 ) the exsolved plates are abnormally thick and large . Hematite . It is abundant in ores in which ilmenite has broken down into rutile and hematite , occurring commonly as thin ( 0.002 mm ...
... noted in any single grain of the host and ( 2 ) the exsolved plates are abnormally thick and large . Hematite . It is abundant in ores in which ilmenite has broken down into rutile and hematite , occurring commonly as thin ( 0.002 mm ...
Page 265
... noted . Edwards ( 1938 , p . 53 ) recorded similar intergrowth in ores from Queensland and conclued eutectic deposition of rutile and ilme- nite . Since there is clear evidence of rutile being younger than ilmenite in the specimens in ...
... noted . Edwards ( 1938 , p . 53 ) recorded similar intergrowth in ores from Queensland and conclued eutectic deposition of rutile and ilme- nite . Since there is clear evidence of rutile being younger than ilmenite in the specimens in ...
Page 300
... noted in size , amplitude and wave - length of convolute laminations from open , streaky convolute lamina- tions to progressively larger sizes with greater amplitude and wave - length . The sequence apparently terminates in a rela ...
... noted in size , amplitude and wave - length of convolute laminations from open , streaky convolute lamina- tions to progressively larger sizes with greater amplitude and wave - length . The sequence apparently terminates in a rela ...
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