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[an error occurred while processing this directive]Distribution Characteristics and Geological Significance of Trace Elements of Sulfides in Qibaoshan Pb-Zn Polymetallic Deposit in Wulian,Shandong Province
Received date: 2024-04-23
Revised date: 2024-06-26
Online published: 2024-09-19
To examine the distribution characteristics of trace elements within the primary sulfides of the Qibaoshan Pb-Zn polymetallic deposit in Wulian,and to constrain the genetic types of the deposit,this study conducted a detailed analysis of the mineralogy and LA-ICP-MS trace element composition of sphalerite and galena formed during different mineralization stages,building upon the geological investigation of the deposit.Based on comprehensive field investigations and laboratory mineralogical studies,the metallogenic processes of the Qibaoshan Pb-Zn polymetallic deposit can be delineated into three distinct stages:The polymetallic sulfide + cataclastic rock stage (Stage Ⅰ),the polymetallic sulfide + quartz + dolomite stage (Stage Ⅱ),and the quartz + dolomite stage (Stage Ⅲ).LA-ICP-MS analysis indicates that sphalerite is enriched in Fe,Co,Mn,and Cd,but depleted in Ge,Se,Te,Re,and Tl,whereas galena exhibits significant enrichment in Ag and Cd.The elements Cu,Cd,Fe,Mn,Co,and In in sphalerite are primarily present in the form of isomorphous substitutions,while microinclusions within galena are occasionally observed.Silver (Ag) in galena is present in an isomorphic form,whereas copper (Cu),zinc (Zn),and arsenic (As) are found as microinclusions within the carbonated ore galena.An investigation into the metallogenetic temperatures of trace elements in sphalerite indicates that the cataclastic brecciated ore,formed during stageⅠ,predominantly crystallized at medium temperatures.In contrast,the carbonate ore,formed during stage Ⅱ,primarily crystallized at low temperatures.Based on the geological attributes and trace element distribution of the deposit,the Qibaoshan Pb-Zn polymetallic deposit is classified as a middle- to low-temperature hydrothermal vein-type deposit associated with magmatic hydrothermal processes.
Mingying TANG , Honglei ZHAN , Jian CHEN , Wei ZHU , Weidong LEI , Xin WANG , Zhengjiang DING , Shuangfei LI , Zheng MU . Distribution Characteristics and Geological Significance of Trace Elements of Sulfides in Qibaoshan Pb-Zn Polymetallic Deposit in Wulian,Shandong Province[J]. Gold Science and Technology, 2024 , 32(5) : 830 -846 . DOI: 10.11872/j.issn.1005-2518.2024.05.112
http://www.goldsci.ac.cn/article/2024/1005-2518/1005-2518-2024-32-5-830.shtml
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