Distribution and sources of rare earth elements in sediments of the Chukchi and East Siberian Seas

doi:10.1016/j.polar.2019.05.005

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋地质与地球物理研究室

	Distribution and sources of rare earth elements in sediments of the Chukchi and East Siberian Seas
	Astakhov, A. S.1; Sattarova, V. V.1; Shi Xuefa 2; Hu Limin 2; Aksentov, K., I 1; Alatortsev, A., V 1; Kolesnik, O. N.1; Mariash, A. A.1
刊名	POLAR SCIENCE
	2019-06
卷号	20 页码:148-159
关键词	Rare earth elements Marine sediment Grain size Chukchi sea East Siberian Sea
ISSN号	1873-9652
DOI	10.1016/j.polar.2019.05.005
英文摘要	Using inductively coupled plasma mass spectrometry (ICP-MS), the distribution of rare-earth elements (REE) at the surface and Holocene sediments of the Chukchi and East Siberian Seas was studied in two cores of up to 8.5 ka in age. The total REE concentration of the surface sediments of the Chukchi Sea varied from 62 mg kg(-1) to 169 mg kg(-1). The NASC-normalized REE patterns were relatively similar to each other and are characterized by a slight enrichment in the middle lanthanides. The total REE concentrations in surface sediments from the East Siberian Sea ranged from 123 mg kg(-1) to 200 mg kg(-1). The normalized patterns showed a strong predominance of light REE, in particular, La and Ce. The main concentrators of REE are the sand and silt fractions of the sediment. The East Siberian Sea is characterized by REE association with elements contained in heavy stable clastic minerals (Zr, Nb, Hf, Th, and Ti). REE in this region are derived from the erosion of the mainland coast and the New Siberian Islands ice complex, as well as from river discharge, primarily from the Lena River, the basin of which comprises ancient crystalline shield and magmatic rocks enriched in light REE. The sediments in the eastern and southern Chukchi Sea have low REE contents, indicating that the terrigenous flux supplying the Chukchi Sea is through the Bering Strait.
资助项目	National Natural Science Foundation of China[U160641] ; National Natural Science Foundation of China[41420104005]
WOS研究方向	Environmental Sciences & Ecology ; Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000483369900005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/30108]
专题	业务部门_海洋地质与地球物理研究室
通讯作者	Sattarova, V. V.
作者单位	1.FEB RAS, VI Ilichev Pacific Oceanol Inst POI, Vladivostok 690041, Russia 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Astakhov, A. S.,Sattarova, V. V.,Shi Xuefa,et al. Distribution and sources of rare earth elements in sediments of the Chukchi and East Siberian Seas[J]. POLAR SCIENCE,2019,20:148-159.
APA	Astakhov, A. S..,Sattarova, V. V..,Shi Xuefa.,Hu Limin.,Aksentov, K., I.,...&Mariash, A. A..(2019).Distribution and sources of rare earth elements in sediments of the Chukchi and East Siberian Seas.POLAR SCIENCE,20,148-159.
MLA	Astakhov, A. S.,et al."Distribution and sources of rare earth elements in sediments of the Chukchi and East Siberian Seas".POLAR SCIENCE 20(2019):148-159.