Records of the Geological Survey of India, Volume 112, Parts 3-5The Survey, 1982 - Earthquakes |
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Page 73
... garnet particularly in the light co- loured bands . Hornblende is highly pleochroic from brownish green to dark ... garnet - rock The hornblende - diopside gneiss and the calc- gneiss are locally associated with hedenbergite - garnet ...
... garnet particularly in the light co- loured bands . Hornblende is highly pleochroic from brownish green to dark ... garnet - rock The hornblende - diopside gneiss and the calc- gneiss are locally associated with hedenbergite - garnet ...
Page 73
... garnet can be termed as melanite because of the dominantly dark colour . The specific gravity of this garnet varies between 3.78 and 3.85 . A black thin coating is often present on the fractures and cracks of the garnet , and shows ...
... garnet can be termed as melanite because of the dominantly dark colour . The specific gravity of this garnet varies between 3.78 and 3.85 . A black thin coating is often present on the fractures and cracks of the garnet , and shows ...
Page 73
... garnet pockets and bands within the skarn possibly represent the totally re- constituted portions of the calc - gneiss , particularly at these spots where the ... garnet occurs 73 MINERALOGY , CHEMISTRY AND PETROGENESIS OF GARNET - ROCK.
... garnet pockets and bands within the skarn possibly represent the totally re- constituted portions of the calc - gneiss , particularly at these spots where the ... garnet occurs 73 MINERALOGY , CHEMISTRY AND PETROGENESIS OF GARNET - ROCK.
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