Records of the Geological Survey of India, Volume 113, Part 2The Survey, 1983 - 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 10
... Quartz - feldspar veins ( pegmatite ) are found as late injective bodies within magnetite rock . Magnetite characteristically shows miarolitic cavities ( Plate I , Fig . 2 ) which indicate magma- tic origin . Miarolitic cavities in ...
... Quartz - feldspar veins ( pegmatite ) are found as late injective bodies within magnetite rock . Magnetite characteristically shows miarolitic cavities ( Plate I , Fig . 2 ) which indicate magma- tic origin . Miarolitic cavities in ...
Page 11
... quartz - feldspar rocks are found as late injective veins within magnetite ores with small amounts of apatite . In thin sections from Dhanuta - Dhancholi , the rock is dominantly composed of magnetite in association with quartz and ...
... quartz - feldspar rocks are found as late injective veins within magnetite ores with small amounts of apatite . In thin sections from Dhanuta - Dhancholi , the rock is dominantly composed of magnetite in association with quartz and ...
Page 117
... quartz and orthoclase as principal rock forming minerals , which do not display any spectral features ( Hunt et al , 1973 ) . The quartz normally contains water in microscopic fluid inclusions and the pink form of orthoclase or ...
... quartz and orthoclase as principal rock forming minerals , which do not display any spectral features ( Hunt et al , 1973 ) . The quartz normally contains water in microscopic fluid inclusions and the pink form of orthoclase or ...
Contents
Effects of Regional Metamorphism on Sulphide Ores at Zawar | 1 |
A Probable Zone of Carbonatite and Fenitic Rock Association | 7 |
Quantitative Correlation of Cyclic Stratigraphic Sequences | 17 |
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Common terms and phrases
aerial alkali feldspars Amjhore anomaly curve bands Bhutan Bijaigarh shale borehole borehole BSG-13 brachiopods Carbonaceous carbonate rocks carbonatite correlation Deccan basalts Deccan Trap depth Estheriella fenites flaggy folds Formation fossiliferous fossils FUNCA1 Geol geological mapping Geological Survey Girnar gneisses grains granites grey shale Himalaya host rock India light REE limestone Lithology Madhya Pradesh magma magnetite Manuscript received Mao-Khola match position medium sandstone Coarse Medium to coarse melting metamorphism micron nepheline syenite oceanic olivine Ordovician pebbly sandstone phyllites picrite plagioclase Plate pyrites pyrites bed pyrites deposit quartz quartzites ratio recrystallised rhyolites rock types sandstone sandstone and grey sandstone Carbonaceous shale sandstone Coarse sandstone sandstone Medium schists sequence shale softer sulphide specimens spectral reflectance sphalerite spilites stratigraphic subroutine sulphide minerals Surv Survey of India thickness Thimphu tion Tong-Chu trace element upper upto values veins Vindhyan volcanism Wachi-La YXMID Zawar