Records of the Geological Survey of India, Volume 112, Parts 3-5The Survey, 1982 - Earthquakes |
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Page 15
... quartz schists and con- glomerates ( Raghunathpali ' Stage ' ) Vein quartz Quartz mica schist ( Garnet and staurolite - bearing ) with occasional lenses of calc - silicate and calc - gneiss rock and quartzite phyllite , carbon phyllite ...
... quartz schists and con- glomerates ( Raghunathpali ' Stage ' ) Vein quartz Quartz mica schist ( Garnet and staurolite - bearing ) with occasional lenses of calc - silicate and calc - gneiss rock and quartzite phyllite , carbon phyllite ...
Page 45
... quartz - rich interbeds ; ( ii ) arenites which are mostly impure and often show gradation from phyllitic quartzites to quartz- schist ; ( iii ) carbon - phyllites which are usually intercalated with chlorite - phyllite sequence ...
... quartz - rich interbeds ; ( ii ) arenites which are mostly impure and often show gradation from phyllitic quartzites to quartz- schist ; ( iii ) carbon - phyllites which are usually intercalated with chlorite - phyllite sequence ...
Page 45
The quartz schist is locally gossanised ( upto 8 m thick ) and contain disseminations of sulphides with an expo- sed strike length of 15 m . The orc - minerals show idioblastic habit and appear to be post deformation . The gossanized ...
The quartz schist is locally gossanised ( upto 8 m thick ) and contain disseminations of sulphides with an expo- sed strike length of 15 m . The orc - minerals show idioblastic habit and appear to be post deformation . The gossanized ...
Contents
The evolution of the ArchaeanProterozoic Crust in parts of Bihar | 1 |
Some aspects of the geochemistry of Dhanjori Volcanics Singhbhum District | 7 |
Geology and Structure of Southern GangpurBonaigarh Region Sundargarh | 13 |
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Alluvium Arunachal Assam assemblage axial bands Barail barytes basaltic basin beds Bihar biotite borehole Chalk Hills chlorite clay coal coalfield conglomerate Cretaceous Cuddapah deposits depth Dhanjori diamictite Disang district dolerite drilling dykes Eocene epidiorite Eurydesma exposed facies faults fauna folds Formation fossil fractures Gangpur garnet Garo Hills Geol geological mapping Geological Survey gibbsite gneisses Gondwana grains granite Group hematite hornblende India indicate iron Jaintia Karharbari Kerala laterite limestone lode magnesite Mahadeo Meghalaya metamorphism metres mineralisation minerals Miocene occur olivine oxides peridotites phyllite plagioclase Plate Pradesh present pyrite pyroxene quartz quartzite Rajgir range recorded region rocks samples sand sandstone schist seam sedimentary sediments sequence shales shear zone shonkinite stratigraphic structural studies sulphide surface Surma Surv Survey of India Tertiary thickness Tipam traverse trend Tripura ultrabasic ultramafic Unconformity Unpublished GSI Report Upper upto uranium veins