1- University of Tabriz
2- University of Tarbiat modares
2- University of Tarbiat modares
Abstract: (172 Views)
Abstract
The Alam-Kandi Pb-Zn deposit is in the Takab-Mahneshan sub-zone in the Sanandaj-Sirjan zone, NW Iran. Geology, mineralization, alteration, tectonic setting, magmatic affinity, fluid inclusion, and S stable isotope characteristics of this mine were investigated. The Neoproterozoic-Early Cambrian metamorphic complex in the study area consists of amphibolite, gneisses, and marble. Lead and zinc mineralization hosted within marble and formed as replacement, veinlets, disseminated, breccias, and bands. Galena and sphalerite are important ore minerals. Electron micro prop analyses (EPMA) have been used to investigate the distribution of Ag, As, Co, Cu, Fe, Mn, Ni, Pb, Sb, Sn, and S in the samples from galena, sphalerite, chalcopyrite, pyrite, and tetrahedrite ore minerals, with wt.% levels. Lead, zinc, and silver are the most important elements economically in these minerals. Among sulfide minerals, galena has the highest amount of silver (Ave. =0.185wt.%). However, with a big difference compared to sulfide minerals, tetrahedrite is the main host of silver (Ave. =10.45 wt.%) in this mine. The host rock alterations include silicification and carbonatization. The original parental magma of the amphibolite was calk alkaline and tholeiite, they formed mid-ocean ridge basalt (MORB) and volcanic arc basalt (VAB), showing the magma sourced from a metasomatized mantle by subduction components in a volcanic arc.
The Alam-Kandi Pb-Zn deposit is in the Takab-Mahneshan sub-zone in the Sanandaj-Sirjan zone, NW Iran. Geology, mineralization, alteration, tectonic setting, magmatic affinity, fluid inclusion, and S stable isotope characteristics of this mine were investigated. The Neoproterozoic-Early Cambrian metamorphic complex in the study area consists of amphibolite, gneisses, and marble. Lead and zinc mineralization hosted within marble and formed as replacement, veinlets, disseminated, breccias, and bands. Galena and sphalerite are important ore minerals. Electron micro prop analyses (EPMA) have been used to investigate the distribution of Ag, As, Co, Cu, Fe, Mn, Ni, Pb, Sb, Sn, and S in the samples from galena, sphalerite, chalcopyrite, pyrite, and tetrahedrite ore minerals, with wt.% levels. Lead, zinc, and silver are the most important elements economically in these minerals. Among sulfide minerals, galena has the highest amount of silver (Ave. =0.185wt.%). However, with a big difference compared to sulfide minerals, tetrahedrite is the main host of silver (Ave. =10.45 wt.%) in this mine. The host rock alterations include silicification and carbonatization. The original parental magma of the amphibolite was calk alkaline and tholeiite, they formed mid-ocean ridge basalt (MORB) and volcanic arc basalt (VAB), showing the magma sourced from a metasomatized mantle by subduction components in a volcanic arc.
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
