Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China

	Lead isotope composition and constraints on origin of Dafulou ore deposit, Guangxi, China
	Cheng Yong-sheng; Hu Rui-zhong
	2013
发表期刊	Transactions of Nonferrous Metals Society of China
卷号	23 期号:6 页码:1766-1773
摘要	To 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.
关键词	Pb Isotope Ore Source Tectonic Setting Dafulou Dachang Ore Field
学科领域	矿床地球化学
收录类别	SCI
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5027
专题	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
推荐引用方式 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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