Translated Title
Constraint on the Genesis of the Shuangjianzishan Silver-Polymetallic Deposit, Balinzuo Qi,Inner Mongolia: Evidence from Trace and Rare Earth Elements
Translated Abstract
The geochemistry research of the super-large Shuangjianxishan silver polymetallic deposit is still poor and this restricts our understanding of metallogenic condition,source of the ore forming material and genesis of the deposit.The study carried out detailed analysis of the trace and rare earth elements for sphalerite,pyrite,galena,and arsenopyrite from the disseminated sulfide ore,vein sulfide ore,and massive sulfide ore.The results show that the metallogenic fluid is characteristic of Cl-rich hydrothermal fluid with temperature and fO2 gradually decreasing from early to late ore-forming stages.By comparing theLREE/HREE,δCe and δEu characteristics of sulfide and magmatic rocks exposed (dikes) in the mining area,and the difference of As,Sn,and Sb in the different orebodies,this study suggests that the ore-forming materials are multiple sources or the superposition of multistage mineralization.The enrichment of mantle derived elements,such as Cu,Co and Cr,suggests that the mantle derived material should not be excluded during the mineralization.Comparison study with magmatic hydrothermal type,SEDEX type,MVT type,and stratabound magmatic hydrothermal superimposed type,the Mn Cd,Sn,Ga,Tl content,Cd/Mn,Zn/Cd ratio and REE of the sphalerite from the Shuangjianzishan deposit shows that the deposit is characteristic of trace and rare earth elements of magmatic hydrothermal fluid and can be classified into the magmatic hydrothermal type.
Translated Keyword
Inner Mongolia
rare earth elements
Shuangjianzishan
silver polymetallic deposit
trace elements
Access Number
WF:perioarticaldizhixb201804008
