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DOI	10.1016/j.epsl.2021.117068
	Role of sulfate in the transport and enrichment of REE in hydrothermal systems
	Wan Y.; Wang X.; Chou I.-M.; Li X.
发表日期	2021
ISSN	0012821X
卷号	569
英文摘要	Sulfate is a common and important component in the mineralizing fluids of some world-class rare earth element (REE) deposits. However, the roles of sulfate during the transport and mineralization of REEs remain unclear and need further investigation. In this study, liquid–liquid immiscibility is proposed to be a potential mechanism for the enrichment of REE in hydrothermal fluids based on a series of experiments. REEs were considerably concentrated into the separated dense liquid phase, whereas the remaining light liquid phase was depleted in REEs. In situ Raman spectroscopic analyses characterized more complicated REE3+-SO42− complexes and some bisulfate species in addition to the documented REESO4+ and REE(SO4)2−; the newly proposed sulfate species can transport one third of the total REEs at >200 °C. Therefore, the transport capacity of sulfate was underestimated in previous studies. Overall, the presence of sulfate can significantly fertilize the REE-mineralizing fluids. © 2021 Elsevier B.V.
关键词	hydrothermal fluids in situ observation liquid–liquid immiscibility REE species sulfate
英文关键词	Liquids; Raman spectroscopy; Rare earths; Spectroscopic analysis; Transport properties; Hydrothermal fluids; In-situ observations; Liquid Phase; Liquid phasis; Liquid-liquid immiscibility; Mineralizing fluids; Rare earth element species; Rare-earths; SO$-4$/$+2-$; Sulphates; Sulfur compounds; hydrothermal fluid; hydrothermal system; immiscibility; in situ test; mineralization; rare earth element; sulfate
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203323
作者单位	CAS Key Laboratory of Experimental Study under Deep-sea Extreme Conditions, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000, China; State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, China; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 10049, China
推荐引用方式 GB/T 7714	Wan Y.,Wang X.,Chou I.-M.,et al. Role of sulfate in the transport and enrichment of REE in hydrothermal systems[J],2021,569.
APA	Wan Y.,Wang X.,Chou I.-M.,&Li X..(2021).Role of sulfate in the transport and enrichment of REE in hydrothermal systems.Earth and Planetary Science Letters,569.
MLA	Wan Y.,et al."Role of sulfate in the transport and enrichment of REE in hydrothermal systems".Earth and Planetary Science Letters 569(2021).