Mineralogy, mineral chemistry, fluid inclusion, and stable isotope investigations of the Kabaduz ore veins, Ordu, NE-Turkey

Hydrothermal vein-type deposits of the Kabaduz region (Ordu, NE-Turkey) are located in Upper Cretaceous andesitic-basaltic rocks and were formed in fault zones along NW-SE direction lines, with thicknesses varying between a few centimetres up to 2 m. The primary mineral paragenesis of the many different ore veins consists of pyrite, chalcopyrite, sphalerite, galena and tetrahedrite-tennantite, with quartz and lesser amounts of calcite and barite as gangue minerals. Electron microprobe analyses indicate that the sphalerite and tetrahedritetennantite have low Fe contents, with values less than 3.37 wt.% and 1.56 wt.%, respectively. The very low Ni and Co contents of the pyrites (