干旱区生态环境知识资源中心(Arid): Provenance of sub-aerial surface sediments in the Tarim Basin, Western China

Arid

DOI	10.1016/j.catena.2020.105014
	Provenance of sub-aerial surface sediments in the Tarim Basin, Western China
	Chen, Xiuling; Song, Yougui; Li, Yue; Huang, Yuzhen; Zhou, Xiaoxiao; Fan, Yifei
通讯作者	Song, YG (corresponding author), Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, 97 Yanxiang Rd, Xian 710061, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	198
英文摘要	Provenance of surface sediments in the Tarim Basin is important for understanding the aridification of the Asian interior and the interplay between the Westerlies and the Asian monsoon. Although the desert sands in the Taklamakan Desert have been studied intensively, there is no consensus regarding their provenance, namely, the dispute exists between various sand sources in different parts of the desert and homogenization of the sands in the entire desert. Moreover, other surface sediments in the basin are poorly investigated. Here we examine the particle-size-specific rare earth element (REE) and trace element characteristics of various surface sediments from different regions of the basin. The results reveal that the <2 mu m fraction has multiple sources from Central Asia as well as from the adjoining arid/semi-arid areas to the east, together with the abrasion of coarser particles from multiple regional sources. They are completely homogenized prior to deposition by the action of the Westerlies and the local wind systems. The 2-16 mu m fraction of most of the sediments in the basin have a higher proportion of Central Asian dust and a relatively high degree of homogeneity. Westerlies and local wind systems remain a more important transport mechanism than the fluvial activity. In addition, the desert sands of 2-16 mu m fraction in the Taklamakan Desert has a substantial contribution from material derived from the basement rocks. The 32-63 mu m and >63 mu m fraction are dominated by regional-derived materials, mainly from the adjacent mountains (e.g. Pamirs, Kunlun, Kuruktag, Altun, Tianshan Mountains), and the fluvial systems are an important additional transport mechanism. Our findings potentially provide an improved understanding of the dust cycle and atmospheric circulation patterns in Central Asia, and of the provenance of loess in North China.
英文关键词	Geochemistry Rare earth element Trace element Grain-size fractions Taklamakan Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000605337000051
WOS关键词	RARE-EARTH-ELEMENTS ; TAKLIMAKAN DESERT ; ASIAN DUST ; GRAIN-SIZE ; GEOCHEMICAL EVIDENCE ; TAKLAMAKAN DESERT ; LOESS PLATEAU ; MINERAL DUST ; XINJIANG ; EVOLUTION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347783
作者单位	[Chen, Xiuling; Huang, Yuzhen; Zhou, Xiaoxiao; Fan, Yifei] Fujian Normal Univ, Inst Geog, Fuzhou 350007, Peoples R China; [Song, Yougui; Li, Yue] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, 97 Yanxiang Rd, Xian 710061, Peoples R China; [Chen, Xiuling; Huang, Yuzhen; Zhou, Xiaoxiao; Fan, Yifei] Fujian Normal Univ, State Key Lab Subtrop Mt Ecol, Minist Sci & Technol & Fujian Prov, Fuzhou 350007, Peoples R China; [Song, Yougui] CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiuling,Song, Yougui,Li, Yue,et al. Provenance of sub-aerial surface sediments in the Tarim Basin, Western China[J]. 中国科学院地球环境研究所,2021,198.
APA	Chen, Xiuling,Song, Yougui,Li, Yue,Huang, Yuzhen,Zhou, Xiaoxiao,&Fan, Yifei.(2021).Provenance of sub-aerial surface sediments in the Tarim Basin, Western China.CATENA,198.
MLA	Chen, Xiuling,et al."Provenance of sub-aerial surface sediments in the Tarim Basin, Western China".CATENA 198(2021).