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 213
... material is either a zeolite ( apophyllite , heulandite and chabazite being common ) , or some form of silica ( quartz , rarely rock crystal , chalcedony or less commonly agate ) , or less often calcite . The order of deposition of ...
... material is either a zeolite ( apophyllite , heulandite and chabazite being common ) , or some form of silica ( quartz , rarely rock crystal , chalcedony or less commonly agate ) , or less often calcite . The order of deposition of ...
Page 223
... materials are mostly very fine sand , the maximum con- centration of material occurring between 0.125 mm . and 0.062mm . grade . The silt and clay together generally do not exceed more than 10 per cent . The size - frequency data have ...
... materials are mostly very fine sand , the maximum con- centration of material occurring between 0.125 mm . and 0.062mm . grade . The silt and clay together generally do not exceed more than 10 per cent . The size - frequency data have ...
Page 302
... material from Barren Island , are lath - shaped and more rectangular as compared to those found in the Karikal material , in which the microlites of felspar are elongate and more thread - like . Basaltic dykes having similar texture and ...
... material from Barren Island , are lath - shaped and more rectangular as compared to those found in the Karikal material , in which the microlites of felspar are elongate and more thread - like . Basaltic dykes having similar texture and ...
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