High fH2-fS2 Conditions Associated with Sphalerite in Latala Epithermal Base and Precious Metal Deposit, Central Iran: Implications for the Composition and Genesis Conditions of Sphalerite

作     者：Fariba Padyar Mohammad Rahgoshay Alexander Tarantola Marie-Camille Caumon Seyed Mohammad Pourmoafi Fariba Padyar;Mohammad Rahgoshay;Alexander Tarantola;Marie-Camille Caumon;Seyed Mohammad Pourmoafi

作者机构：Faculty of Earth SciencesShahid Beheshti University-EvinTehranIran Department of ExplorationGeological Survey of IranTehranIran GeoResources Lab、Faculty of Sciences and TechnologiesUniversity of LorraineCNRSVandoeuvre the Nancy F-54506France 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2020年第31卷第3期

页      面：523-535页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：supported by the Ministry of Science  Research and Technology of Iran and TRIGGER Program 

主　　题：Iran Miduk porphyry Latala sphalerite fluid inclusions Raman spectroscopy δ^34S 

摘      要：This paper presents the properties of fluid inclusions found in sphalerite from Latala epithermal base and precious metal deposit(Central Iran),which is hosted in Cenozoic volcanicsedimentary *** Latala Deposit represents an example of vein type,base metal deposits in the Miduk porphyry copper deposits(PCDs)in southern Urumieh-Dokhtar magmatic belt(UDMB).Mineralization in Latala epithermal base and precious metal vein type formed in 3 stages and sphalerite-quartz veins occur in stages 2 and *** 2 quartz-sphalerite veins are associated with chalcopyrite and zoned sphalerite,along with quartz+hematite,and Stage 3 quartz-sphalerite veins contain galena+sphalerite+chalcopyrite and quartz with overgrowth of *** in Stage 3 occurs as replacement bodies and contains Fe-poor sphalerite without zoning in the outer parts of the *** paper focuses on fluid inclusions in veins bearing sphalerite and *** fluid inclusion homogenization temperatures and salinity in sphalerite(some with typical zoning)range from 144 to 285℃and from 0.2 wt.%to 7.6 wt.%NaCl *** and fluid inclusions of the Latala base and precious metal deposit formed from relatively low-T and low-salinity *** spectroscopy analyses indicate a high percentage of CO2 in the gas phase of fluid inclusions in Fe-poor sphalerites,as expected with melting temperature for CO2 of-56.6℃,and significant amounts of *** of reduced carbon species(methane and lighter hydrocarbons)was confirmed in the petrographic study using UV light and Raman *** amounts of H2 in fluid inclusions of Fe-poor sphalerite can be the result of different intensities of alteration and diffusion *** common occurrences of CO2 in fluid inclusions have originated from magma degassing and dissolution of ***δ^34S values for sulfide minerals in galena of sphalerite bearing veins vary between-9.8‰and-1.0‰,and theδ^34S values calculated for H2 S are between