Size-differentiated REE characteristics and environmental significance of aeolian sediments in the Ili Basin of Xinjiang, NW China

doi:10.1016/j.jseaes.2017.03.030

	Size-differentiated REE characteristics and environmental significance of aeolian sediments in the Ili Basin of Xinjiang, NW China
	Li, Yue 3; Liu, Xiuming 1,2; Chen, Xiuling 1,2; Song, Yougui 3; Li, Jinchan 1,2; Fang, Hong 1; Li, Zhizhong 1,2; Orozbaev, Rustam 4
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2017-08-01
卷号	143 期号:2017 页码:30-38
关键词	Loess Ree Provenance Size Fraction The Ili Basin
DOI	10.1016/j.jseaes.2017.03.030
文献子类	Article
英文摘要	Aeolian loess in the Ili Basin is an important geological archive for studying the changes in paleoclimate and sources of dust particles. Size-differentiated rare earth elements (REE) may help to distinguish potential dust sources. This study investigates the size-differentiated REE characteristics from three sites including the Zhaosu loess and the Kekdala desert sediments from the Ili Basin, and the Chaona loess from the Chinese Loess Plateau (CLP). Our results show that the patterns of variation of the REE characteristics in different size fractions can act as improved source tracers for aeolian sediments. Moreover, the REE characteristics of the < 2 mu m particles are sensitive indicators for distinguishing dust particles transported over long distances in the semi-arid areas with limited pedogenesis such as the Ili Basin. However, it should be interpreted cautiously in the CLP due to the post-depositional chemical weathering. The REE characteristics of coarse fractions are effective tracers for tracking changes in proximal dust sources and regional boundary level circulations. Our study has implications for identifying the exact source(s) of the Ili loess, which is helpful to understand paleoclimate changes and westerly circulation patterns in Central Asia.
WOS关键词	LOESS PLATEAU ; CENTRAL-ASIA ; PALEOCLIMATIC IMPLICATIONS ; PROVENANCE DISCRIMINATION ; GEOCHEMICAL COMPOSITION ; TIBETAN PLATEAU ; CHEJU ISLAND ; DUST ; DEPOSITS ; MOUNTAINS
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000404309000003
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5450]
专题	地球环境研究所_古环境研究室
作者单位	1.Fujian Normal Univ, Inst Geog, Fuzhou 350007, Peoples R China 2.Fujian Normal Univ, Coll Geog Sci, Minist Sci & Technol & Fujian Prov, State Key Lab Subtrop Mt Ecol, Fuzhou 350007, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, 97 Yanxiang Rd, Xian 710061, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia Bishkek, Bishkek 720040, Kyrgyzstan
推荐引用方式 GB/T 7714	Li, Yue,Liu, Xiuming,Chen, Xiuling,et al. Size-differentiated REE characteristics and environmental significance of aeolian sediments in the Ili Basin of Xinjiang, NW China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,143(2017):30-38.
APA	Li, Yue.,Liu, Xiuming.,Chen, Xiuling.,Song, Yougui.,Li, Jinchan.,...&Orozbaev, Rustam.(2017).Size-differentiated REE characteristics and environmental significance of aeolian sediments in the Ili Basin of Xinjiang, NW China.JOURNAL OF ASIAN EARTH SCIENCES,143(2017),30-38.
MLA	Li, Yue,et al."Size-differentiated REE characteristics and environmental significance of aeolian sediments in the Ili Basin of Xinjiang, NW China".JOURNAL OF ASIAN EARTH SCIENCES 143.2017(2017):30-38.