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Moshtagh S, Siahcheshm K, Hosseinzadeh M R. Mineralogy, geochemistry and genetic model of Pardad copper deposit constrains on isotopic studies. www.ijcm.ir 2025; 33 (1) :63-80
URL: http://ijcm.ir/article-1-1906-en.html
URL: http://ijcm.ir/article-1-1906-en.html
1- Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
Abstract: (631 Views)
The Pardad copper deposit is situated within the Eocene Davarzan-Abbassabad magmatic belt, along the northeastern margin of the Central Iran structural zone. Copper mineralization occurs as veinlets, open space fillings, disseminations, replacements and stockwork (hydrothermal breccia), primarily in volcanic rocks, including bornite, chalcocite, chalcopyrite, covellite, malachite, azurite, and native copper (minor). The host rocks belong to calc-alkaline volcanic arcs and are characterized by enrichment in large-ion lithophile elements (LILE: Cs, Rb, K, Sr), relative to high-field strength elements (HFSE: Nb, Ti, Y, Ce, Zr), and light rare earth elements (LREE) relative to heavy rare earth elements (HREE). Negative δ34S values (-1.10‰ to -7.12‰) of chalcocite samples indicate a bacterial reduction process. Measured δ13C values of calcite associated with mineralization ranges from -9.06‰ to -57.9‰. Based on mineralogical, lithological, structural, and textural characteristics of the ore material, mineral paragenesis, and stable isotope data, the Pardad copper deposit is classified as a Manto-type deposit similar to those in Chile.
Keywords: Pardad copper deposit, Davarzan-Abbassabad magmatic belt, Manto-type deposit, δ34S, δ13C, bacterial reduction, LILE, HFSE, genetic model.
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