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Mineralogical and geochemical studies on the Gowd-e-Morad (Ni, Co, As–Cu) mineral deposit, Anarak (central Iran)


N Mazaheri Kuhanestani, B Mokhtarzadeh Mohammadi, DHM Alderton, SH Tabatabaei, H Bagheri



The Ni, Co, As, and Cu deposit of Gowd-e-Morad is located 20 km northwest of Anarak in Central Iran. In this hydrothermal deposit, mineralization occurs as veins in a fault breccia zone hosted by the Chahgorbeh (schist and metabasite) complex. The main ores are made up of Ni, Co, and Cu arsenides. Petrologic studies and results obtained from geochemical analyses have indicated that the Ni, Co, As, and Cu are derived from ultramafic rocks while Pb and Zn are likely to be derived from schist. Based on the geochemical evidence, particularly the high correlation between Ni, Co, and As, it is proposed that this deposit be categorized as a “five elements” mineral deposit. Fluid inclusion studies have shown homogenization temperatures (TH) in the range 113−206 ˚C and salinity 3−13.5 % wt eq. NaCl. Therefore this “five elements” mineral deposit has been determined as a low temperature, epithermal …

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