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 269
... porphyritic trap , amygdaloidal : 8.5 Fine massive porphyritic trap : more weathered than the other massive traps in the area . 2.7 Soft vesicular porphyritic trap , amygdaloidal : At 427 metres ( 1400 ft . ) above m.s.1 . two veins of ...
... porphyritic trap , amygdaloidal : 8.5 Fine massive porphyritic trap : more weathered than the other massive traps in the area . 2.7 Soft vesicular porphyritic trap , amygdaloidal : At 427 metres ( 1400 ft . ) above m.s.1 . two veins of ...
Page 273
... Porphyritic variety . ( ii ) Non - porphyritic variety . ( b ) Soft vesicular trap with or without amygdales . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . 2. Massive trap : ( a ) Coarse trap . ( i ) Porphyritic ...
... Porphyritic variety . ( ii ) Non - porphyritic variety . ( b ) Soft vesicular trap with or without amygdales . ( i ) Porphyritic variety . ( ii ) Non - porphyritic variety . 2. Massive trap : ( a ) Coarse trap . ( i ) Porphyritic ...
Page 274
... porphyritic . The phenocrysts are commonly of felspars and rarely of pyroxenes , set in a dense base in which none ... porphyritic ) collected from the base of the Cave No. XVI 2. Soft vesicular trap ( porphyritic ) collected from the ...
... porphyritic . The phenocrysts are commonly of felspars and rarely of pyroxenes , set in a dense base in which none ... porphyritic ) collected from the base of the Cave No. XVI 2. Soft vesicular trap ( porphyritic ) collected from the ...
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