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 43
... pyrite and arsenopyrite specks 0.1 23.10-23.15 whitish grey 0.1 quartz vein with pyrite specks 60.50-60.80 chert bands with megnatite streaks 0.1 66.76 - 71.70 BMQ with very thin phyllitic bands 71.70 -103.60 Phyllite with occasional ...
... pyrite and arsenopyrite specks 0.1 23.10-23.15 whitish grey 0.1 quartz vein with pyrite specks 60.50-60.80 chert bands with megnatite streaks 0.1 66.76 - 71.70 BMQ with very thin phyllitic bands 71.70 -103.60 Phyllite with occasional ...
Page 45
... pyrite and arsenopyrite dissemination . 84.80-84.90 quartz vein near the contact . Assay value ( gm / tonne ) Au Ag ... Pyrite and arsenic pyrite zone within phyllite with quartz- carbonate veinlets . Au - 2.00 Ag 5 ppm As - ยท - 10 ppm ...
... pyrite and arsenopyrite dissemination . 84.80-84.90 quartz vein near the contact . Assay value ( gm / tonne ) Au Ag ... Pyrite and arsenic pyrite zone within phyllite with quartz- carbonate veinlets . Au - 2.00 Ag 5 ppm As - ยท - 10 ppm ...
Page 49
... Pyrite is possibly the next mineral to have been depo- sited but there is no physical contact between pyrite and pyrrhotite . Chalcopyrite is definitely younger than both pyrite and pyrrhotite as it cuts across these minerals ...
... Pyrite is possibly the next mineral to have been depo- sited but there is no physical contact between pyrite and pyrrhotite . Chalcopyrite is definitely younger than both pyrite and pyrrhotite as it cuts across these minerals ...
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 |
Copyright | |
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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