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Showing 1 to 4 of 4 for “"tetrahedrite-tennantite"”.
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Trace element distributions and partitioning trends in hydrothermal base metal sulphide ores comprising sphalerite, galena, chalcopyrite and tetrahedrite-tennantite
… natural sphalerite, galena, chalcopyrite and tetrahedrite-tennantite are determined, as are the preferred equilibrium trace element partitioning trends among these sulphides. The previously documented coupled substitution Ag⁺+(Bi, Sb)³⁺↔2Pb²⁺ in galena is confirmed, yet should also be modified …
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Geology and geochemistry of the Bully Hill area of the East Shasta district, Shasta County, California.
… and replacement by galena + chalcopyrite + tetrahedrite-tennantite; (3b) replacement by chalcopyrite; and (4) replacement by barite. ΣSO₄⁼ and H₂S contents of hydrothermal fluids decreased from Stages 2a to 3a. δ³⁴S values of sulfides increased successively from Stages 1 (-15.8 per mil) to …
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Geochemistry and origin of the Asimotrypes carbonate hosted mesothermal gold deposit, Pangeon mountain, N. Greece
… sphalerite, galena, chalcopyrite, pyrrhotite, tetrahedrite-tennantite, marcasite, covellite and malachite. Gold is either refractory occurring mainly in arsenopyrite and to a lesser extent in Aspyrite, or free in the oxide minerals.<br/><br/>Three types of fluid inclusions (with subtypes) were …
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Metallogenesis of Cu deposits in Upper Palaeozoic sedimentary rocks, southern Ireland
… episodes are mainly syn-genetic chalcopyrite, tetrahedrite/tennantite, minor bornite and chalcocite. Re-Os geochronology measurements on molybdenite samples, associated with the vein hosted copper sulphides, reveal ages of 367.3 ± 5.5 to 366.4 ± 1.9 Ma (Upper Devonian, syn-basinal) for the …