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 197
... biotite . Garnets and ciots of sillimanite are seen here and there . The granites associated with the white gritty quartzites are light grey massive rocks , except at 1.4 km . due west of 1574 ridge and at 0.6 km . due south of 1514 ...
... biotite . Garnets and ciots of sillimanite are seen here and there . The granites associated with the white gritty quartzites are light grey massive rocks , except at 1.4 km . due west of 1574 ridge and at 0.6 km . due south of 1514 ...
Page 214
... biotite and iddingstite are occasionally noticed . Amygdaloidal basalts are common in this area . They are usually porphy- ritic containing phenocrysts of greyish white felspar and less frequently of olivine . These rocks are exposed in ...
... biotite and iddingstite are occasionally noticed . Amygdaloidal basalts are common in this area . They are usually porphy- ritic containing phenocrysts of greyish white felspar and less frequently of olivine . These rocks are exposed in ...
Page 303
... biotite . The lamprophyre is highly susceptible to weathering and is schistose when weathered . Veinlets of quartz and calcite barren of ore minerals traverse the rock . The essential mineral constituents of the rock are biotite calcite ...
... biotite . The lamprophyre is highly susceptible to weathering and is schistose when weathered . Veinlets of quartz and calcite barren of ore minerals traverse the rock . The essential mineral constituents of the rock are biotite calcite ...
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