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Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China
Cheng Yong-sheng; Hu Rui-zhong
2013
Source PublicationTransactions of Nonferrous Metals Society of China
Volume23Issue:6Pages:1766-1773
AbstractTo discuss the material source and tectonic setting, the lead isotope composition was analyzed based on the samples from the latest tunnel of the Dafulou deposit. The lead isotope values are 17.478-18.431, 15.440-15.717, and 37.556-38.839 for Pb-206/Pb-204, Pb-207/Pb-204 and Pb-208/Pb-204, respectively. The values of Phi, mu, and Th/U are 0.592-0.638, 9.26-9.69 and 3.74-3.97. By comparing the lead isotope composition of the different ore belts, it indicates that the lead source of the west belt may be more single than the other ore belts. The lead isotope value in the middle and east belts are the maximum and minimum, respectively. In the Dachang ore district, the lead sources are comprised of the upper crust lead, the mixed crust and mantle subduction zone lead and the orogenic lead. The tectonic distinguish model suggests that the ore lead derived from both the mantle and crust. And, the upper crust and magmatism played an important role during the mineralization. The orogenesis also supplied a minority of ore lead. The ore deposit should be the result of the crust-mantle interaction and maybe had been formed in the orogenic environment.
KeywordPb Isotope Ore Source Tectonic Setting Dafulou Dachang Ore Field
Subject Area矿床地球化学
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/5027
Collection矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
矿床地球化学国家重点实验室
Recommended Citation
GB/T 7714
Cheng Yong-sheng,Hu Rui-zhong. Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China[J]. Transactions of Nonferrous Metals Society of China,2013,23(6):1766-1773.
APA Cheng Yong-sheng,&Hu Rui-zhong.(2013).Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China.Transactions of Nonferrous Metals Society of China,23(6),1766-1773.
MLA Cheng Yong-sheng,et al."Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China".Transactions of Nonferrous Metals Society of China 23.6(2013):1766-1773.
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