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 205
... strike N.30 ° E. - S.30 ° W . and plunges about 30 ° to 40 ° towards N.30 ° E . Time interval between the two foldings is difficult to determine . How- ever , the later folding was prior to the intrusion of the dolerite dyke which has ...
... strike N.30 ° E. - S.30 ° W . and plunges about 30 ° to 40 ° towards N.30 ° E . Time interval between the two foldings is difficult to determine . How- ever , the later folding was prior to the intrusion of the dolerite dyke which has ...
Page 248
... strike changes to west , W.S.W. and then abruptly to S.S.E. and south - east making an irregular U - turn around a ' core ' of quartzite outcrop . The strike and outcrop features here possibly represent a tightly refolded structural ...
... strike changes to west , W.S.W. and then abruptly to S.S.E. and south - east making an irregular U - turn around a ' core ' of quartzite outcrop . The strike and outcrop features here possibly represent a tightly refolded structural ...
Page 249
... strike of individual ore - bodies is also a common feature . The chief impurity in such ores is iron - oxide . The chocolate - coloured or pinkish host rock contains anything up to 11 per cent . manganese . This rock sometimes grades ...
... strike of individual ore - bodies is also a common feature . The chief impurity in such ores is iron - oxide . The chocolate - coloured or pinkish host rock contains anything up to 11 per cent . manganese . This rock sometimes grades ...
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