Stable Isotopes (O, H, and S) in the Muteh Gold Deposit, Golpaygan Area, Iran
- Ferdousi University, Department of Geology (Iran, Islamic Republic of)
- Shahid Bahonar University, Department of Geology (Iran, Islamic Republic of)
- Shahid Chamran University, Department of Geology (Iran, Islamic Republic of)
The Muteh gold district with nine gold deposits is located in the Sanandaj-Sirjan metamorphic zone. Gold mineralization occurs in a pre-Permian complex which mainly consists of green schists, meta-volcanics, and gneiss rocks. Shear zones are the host of gold mineralization. Gold paragenesis minerals include pyrite, chalcopyrite, pyrrhotite, and secondary minerals. Pyrites occur as pre-, syn-, and post-metamorphism minerals. To determine the source of the ore-bearing fluids, fifty samples were selected for petrographical and stable isotope studies. The mean values of 12.4 per mille , and -42 per mille for {delta}{sup 18}O and {delta}D isotopes, respectively, and a mean value of 7.75 per mille of calculated fractionation factors for {delta}{sup 18}O H{sub 2}O, from quartz veins indicate that metamorphic host rocks are the most important source for the fluids and gold mineralization. Three generations of pyrite can be distinguished showing a wide range of {delta}{sup 34}S. Gold mineralization is closely associated with intense hydrothermal alteration along the ductile shear zones. The characteristics of the gold mineralization in the study area are similar to those of orogenic gold deposits elsewhere.
- OSTI ID:
- 21238855
- Journal Information:
- Natural Resources Research (New York, N.Y.), Vol. 18, Issue 2; Other Information: DOI: 10.1007/s11053-009-9091-3; Copyright (c) 2009 International Association for Mathematical Geology; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1520-7439
- Country of Publication:
- United States
- Language:
- English
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