Records of the Geological Survey of India, Volume 107Geological Survey of India, 1976 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 21
... felspar crystals set in a.greenish matrix of pyroxene , felspar and glassy matter of faintly recognizable nature , due to intense alteration , is adjudged . The traps of the area can thus be classified into the following recogniz- able ...
... felspar crystals set in a.greenish matrix of pyroxene , felspar and glassy matter of faintly recognizable nature , due to intense alteration , is adjudged . The traps of the area can thus be classified into the following recogniz- able ...
Page 26
... felspar crystals ( Pl 9 , Fig 6 ) , pyroxene granules ( Pl 10 , Fig 1 ) , opaque iron ores , mostly magnetite ( Pl 10 , Figs 4 , 6 ) and calcite . The glass has in many cases altered to palagonite ( Pl 12 , Fig 6 ) . Quite frequently ...
... felspar crystals ( Pl 9 , Fig 6 ) , pyroxene granules ( Pl 10 , Fig 1 ) , opaque iron ores , mostly magnetite ( Pl 10 , Figs 4 , 6 ) and calcite . The glass has in many cases altered to palagonite ( Pl 12 , Fig 6 ) . Quite frequently ...
Page 36
... felspar being deficient . Plane Polarised light photomicrograph of Fig 4 from Jawahar Tunnel . ( All Figures are from thin sections under crossed nicols , X 105 ) Fig 1. Part of a zeolite crystal in a matrix of felspar microlites ...
... felspar being deficient . Plane Polarised light photomicrograph of Fig 4 from Jawahar Tunnel . ( All Figures are from thin sections under crossed nicols , X 105 ) Fig 1. Part of a zeolite crystal in a matrix of felspar microlites ...
Contents
RECORDS | 2 |
A note on the polymetallic sulphide mineralisation in Askot area | 8 |
On studies of the Agglomeratic Slate and Panjal Trap in the Jhelum | 12 |
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acidic agglomeratic slates amphibolite Archaean assemblage Bababudan Group bands Barakar basalts beds Bihar biotite Boulder Conglomerate calcareous Chitradurga chlorite clays correlation craton Cuddapah deposits Dharwar district east epidote facies felspar flora of India folds formation fossil galena Garo Hills Geoclemys Geol Geological Survey Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grained greenish grey greenstone belts greyish high grade schists Ibid indicated isotopic Jour Karharbari Kashmir Kurnool laterite limestone Lower Gondwana Lower Karewas metamorphism metres mineralisation minerals Mysore non-porphyritic occur outcrops overlying Palaeobotanist Panchet Panjal trap phenocrysts Pinjor Plate Pleistocene Pliocene porphyritic Precambrian pyroxene quartz quartzite Raniganj rock types Sargur schist schist belts schistose schistose rocks sediments sequence shale Siwalik stratigraphic Supergroup Surv Survey of India Sylhet Sylhet Limestone Sylhet Sandstone Talchir Tatrot tectonic Tertiary thick unconformity Upper upto valley veins Vindhyan volcanic Western Block zeolite zone