Records of the Geological Survey of India, Volume 113, Part 5government of India., 1980 - Geology 1867- includes the "Annual report of the Geological survey of India". |
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Page 35
... colour and mostly medium grained . Individual veins intruded are lenticular in shape and are 0.5 cm to 1 cm thick ... colour variation , compositional variation and grain size variation are conspicuous . The rhythmic layering of fine ...
... colour and mostly medium grained . Individual veins intruded are lenticular in shape and are 0.5 cm to 1 cm thick ... colour variation , compositional variation and grain size variation are conspicuous . The rhythmic layering of fine ...
Page 48
... colour . Polishes well . Bireflectance not noticed but it is feebly anistropic . At places it replaces pyrrhotite . Pyrite as Pyrite is the second most important opaque mineral in the order of abundance . It occurs as dispersed grains ...
... colour . Polishes well . Bireflectance not noticed but it is feebly anistropic . At places it replaces pyrrhotite . Pyrite as Pyrite is the second most important opaque mineral in the order of abundance . It occurs as dispersed grains ...
Page 63
... colour and contain veinlets of talc , carbonate and asbestos . In many samples a greenish . prismatic tremolite is found in association with veinlets of parthitic feldspar ( moonstone ) . Chro- mite ore is massive , blocky , shining and ...
... colour and contain veinlets of talc , carbonate and asbestos . In many samples a greenish . prismatic tremolite is found in association with veinlets of parthitic feldspar ( moonstone ) . Chro- mite ore is massive , blocky , shining and ...
Contents
Certain aspects of the occurrence of fluorite in India and its exploration | 1 |
Gold mineralisation and geology around Chinmulgund area Dharwar district | 31 |
A note on the mineragraphy of sulphide ores of Kalyadi area Karnataka State | 46 |
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Common terms and phrases
alkaline rocks Ambadongar Andhra Pradesh anorthosite associated axial banded magnetite quartzite basalt biotite borehole breccia CaF2 calcite carbonate carbonatite chalcopyrite Charnockite Charnockite Group chert Chinmulgund chlorite chromiferous chromite chromitite colour complex confidence limits Cretaceous deformation deposits Dharwar diopside district emplacement Felsite fluorite fluorspar folds formation fractures gabbro gabbroic Geol Geological Survey germ pore gm/tonne gneiss GOKUL gold grade grains granite granulite Gujarat host rock hydrothermal hypersthene igneous intrusives Kondapalli hills laterite layering limestone magma magnetite mapping metres million tonnes mineralisation minerals minor Neyveli lignite occurrences olivine orthopyroxenite percent Fe phyllite plagioclase plane pluton pollen pyrite pyroxene pyroxenite pyrrhotite quarry quartz quartz veins quartzite Ramanujam Records reserves Rhyolite rock types rust fungi samples schist schistose sediments spores Stromatolites structure sulphide Survey of India syenite taluks teliospores Tertiary thick tion titles trend ultramafic Unpublished GSI Report upto veinlets volcanic websterite