Evaluating the Au Mineralization in the Darrehzar Vein System (Pariz area- Kerman Province), with Emphasis on Fluid Inclusion and Sulfur Isotope Studies


1 Department of Geology, Faculty of Science, University of Tehran, Tehran

2 Faculty of Earth Science, Shahrood University, Shahrood


Au vein system is located in Pariz, 60 Km northeast of Sirjan (Kerman province), and within the Urumieh-Dokhtar magmatic belt. The oldest rocks are volcano-sedimentary units which are host the Au mineralization. Geochemical and field studies reveal that this mineralization is accompanied by argillic alteration and is mainly limited to quartz veins. Fluid inclusion studies on mineralized quartz veins show the salinity of 2.5 to 16.5 wt% and homogenization temperatures of 120 to 290˚C, which point to the mixing of meteoric and magmatic water as the main component of the mineralizing fluids. With respect to the δ34S values for pyrite and chalcopyrite minerals (-2.13 ‰ to -8.54 ‰) in the Au-bearing veins, the origin of sulfur and possibly Au is considered to be the volcanic-sedimentary series in the region. The evidence presented in this research demonstrates that there is a close resemblance between the Pariz gold mineralization and low-sulfidation epithermal deposits.


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