Origin of heavy rare earth mineralization in South China

doi:10.1038/ncomms14598

CORC > 北京大学 > 地球与空间科学学院

	Origin of heavy rare earth mineralization in South China
	Xu, Cheng ; Kynicky, Jindrich ; Smith, Martin P. ; Kopriva, Antonin ; Brtnicky, Martin ; Urubek, Tomas ; Yang, Yueheng ; Zhao, Zheng ; He, Chen ; Song, Wenlei
刊名	NATURE COMMUNICATIONS
	2017
关键词	TH-PB GEOCHRONOLOGY OXYGEN FUGACITY ISOTOPIC COMPOSITIONS REE MINERALIZATION SOUTHEASTERN CHINA ELEMENTS FRACTIONATION GEOCHEMISTRY SR ND
DOI	10.1038/ncomms14598
英文摘要	Heavy rare earth elements (HREE) are dominantly mined from the weathering crusts of granites in South China. Although weathering processes occur globally, no economic HREE resources of this type have yet been found outside China. Here, we report the occurrence of unidentified REE minerals in the granites from South Chinese deposits. They contain high levels of both HREE and light REE, but are strongly depleted in Ce, implying high oxidation state. These REE minerals show higher initial Nd isotope than primary REE-rich minerals (eNd(t) = 0.9 +/- 0.8 versus -11.5 +/- 0.5). The mineralized weathering crusts inherited REE signature of the granites, but show more Ce depletion and more overall concentration of the REE. We propose, therefore, that highly oxidized, REE-rich fluids, derived from external, isotopically depleted sources, metasomatized the granites, which resulted in Ce depletion as Ce4+ and enrichment of the remaining REE, especially the HREE, contributing to formation of a globally important REE resource.; Chinese National Science Foundation [41573033, 41222022]; European Union's Horizon [689909]; Czechic Project CEITEC [LQ1601]; SCI(E); ARTICLE; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475072]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Xu, Cheng,Kynicky, Jindrich,Smith, Martin P.,et al. Origin of heavy rare earth mineralization in South China[J]. NATURE COMMUNICATIONS,2017.
APA	Xu, Cheng.,Kynicky, Jindrich.,Smith, Martin P..,Kopriva, Antonin.,Brtnicky, Martin.,...&Song, Wenlei.(2017).Origin of heavy rare earth mineralization in South China.NATURE COMMUNICATIONS.
MLA	Xu, Cheng,et al."Origin of heavy rare earth mineralization in South China".NATURE COMMUNICATIONS (2017).