Geological Setting, Mineralogy and Geochemistry of Plutonic Rocks and Related Auriferous Quartz Veins in the Baskil Region Elazig, Eastern Turkey
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The main component of the veins is quartz and sulphide minerals are concentrated as lumps among quartz crystals. The ore minerals within the veins are cubanite, chalcopyrite, arsenopyrite, tetrahedrite-tennantite, bismuthinite, sphalerite and native Au. The veins are closely related to the Baskil Pluton and were probably the final products of plutonic evolution. High temperature ore minerals (cubanite, bismuthinite), wall rock alteration (secondary K-feldspar, pyrophylitic alteration), and spatial relations of veins with the pluton, all indicate a nearby source for the hydrothermal solutions which formed the quartz veins. The metals were probably derived from magmatic fractionation and Au was transported as sulphide complexes.
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