Fraction characteristics of rare earth elements in the surface sediment of Bohai Bay, North China

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	Fraction characteristics of rare earth elements in the surface sediment of Bohai Bay, North China
	Xu, Yayan 1,2,3; Song, Jinming1 ; Duan, Liqin 1,3; Li, Xuegang 1; Yuan, Huamao 1; Li, Ning 1; Zhang, Peng1,3 ; Zhang, Ying 1,3; Xu, Sisi 1,3; Zhang, Mo 1,3
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2012-12-01
卷号	184 期号:12 页码:7275-7292
关键词	Rare earth elements Fraction Provenance Depositional environment Surface sediments Bohai Bay
ISSN号	0167-6369
通讯作者	Song, JM (reprint author), Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
英文摘要	Surface sediment samples were collected at 27 stations of Bohai Bay, North China. Sequential extractions were carried out in this study. REE were leached out from four labile fractions: Exchangeable (L1), bound to carbonates (L2), bound to Fe-Mn oxides (L3), bound to organic matter (L4), and the remainder was residual (R5). The total contents of REE fluctuate slightly in Bohai Bay, and are mainly concentrated in the middle region, showing relatively higher levels in the north than that in the south of Bohai Bay. Percentages of L1, L2, L3, L4, and R5 for REE suggest that the residual fraction accounts for the major component of REE, whereas Fe-Mn oxides also play important roles in combining labile REE. As the REE complex is not stabilized, the competition of complex could induce dissociation of the complex and redistribution of the REE in various environments. According to REE patterns and Y/Ho ratios of samples, REE are not anthropogenic or oceanic sources but riverine input, whereas suitable environment varieties can slightly affect the patterns and fractionations of REE. As powerful tracers for the variable of environment, higher anomaly of Eu and Ce in southern regions indicates a greater reduction in the condition of surface sediment in the south than that in the north of Bohai Bay.
学科主题	Environmental Sciences
收录类别	SCI
原文出处	10.1007/s10661-011-2496-6
语种	英语
WOS记录号	WOS:000310742200016
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12429]
专题	海洋研究所_海洋生态与环境科学重点实验室海洋研究所_实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Fisheries Sci, Key & Open Lab Marine & Estuary Fisheries, Minist Agr China, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yayan,Song, Jinming,Duan, Liqin,et al. Fraction characteristics of rare earth elements in the surface sediment of Bohai Bay, North China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2012,184(12):7275-7292.
APA	Xu, Yayan.,Song, Jinming.,Duan, Liqin.,Li, Xuegang.,Yuan, Huamao.,...&Yin, Xuebo.(2012).Fraction characteristics of rare earth elements in the surface sediment of Bohai Bay, North China.ENVIRONMENTAL MONITORING AND ASSESSMENT,184(12),7275-7292.
MLA	Xu, Yayan,et al."Fraction characteristics of rare earth elements in the surface sediment of Bohai Bay, North China".ENVIRONMENTAL MONITORING AND ASSESSMENT 184.12(2012):7275-7292.