干旱区生态环境知识资源中心(Arid): Applicability of rare earth elements in eolian sands from desert as proxies for provenance: A case study in the Badain Jaran Desert, Northwestern China

Arid

DOI	10.1016/j.catena.2021.105647
	Applicability of rare earth elements in eolian sands from desert as proxies for provenance: A case study in the Badain Jaran Desert, Northwestern China
	Li, Zhuolun; Chen, Qiujie; Dong, Shipei; Zhang, Dezhong; Yu, Xinhui; Zhang, Cheng
通讯作者	Li, ZL ; Chen, QJ (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Ctr Glacier & Desert Res, Lanzhou, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	207
英文摘要	Rare earth elements (REEs) have been widely used to infer the provenance of sediments. However, sedimentary sorting and chemical weathering may produce REE compositions within sediments that vary with grain size, leading to complications and uncertainty when tracing possible source areas. In desert areas, the extent to which REE compositions within eolian sands are affected by sedimentary sorting along with which REE proxies can be used to indicate provenance requires further study. During our work, 73 samples were collected from the Badain Jaran Desert (BJD) and some nearby regions. These were analyzed for trace elements and REEs. Our results showed that the REE composition of these eolian sands varied considerably among the various grain-size fractions. We conclude that the REE composition of these eolian sands in the BJD is a function of sedimentary sorting and provenance rather than of chemical weathering. Among the REE proxies considered, variations in (La/Yb) N and Y/REE values seem mainly to have been affected by sedimentary sorting, whilst dCe, (La/Sm)N, (La/Gd)N, Y/Tb, Y/Er, and Ce/Nd ratios appeared primarily to have been governed by provenance. Therefore, we can infer that care is needed when using (La/Yb) N and Y/REE as proxies for determining eolian sand provenance; however, dCe, (La/Sm)N, (La/Gd)N, Y/Tb, Y/Er, and Ce/Nd ratios offer a more reliable perspective. Moreover, by using (La/Sm) N and (La/Gd) N as provenance proxies, we determined that hinterland lacustrine sediments are an important source of < 125 mu m fractions in the eolian sands of the BJD.
英文关键词	Rare earth element Provenance Eolian sand Geochemistry Desert Earth surface process
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703268900065
WOS关键词	CHEMICAL-COMPOSITION ; ISOTOPIC CHARACTERISTICS ; SEDIMENTARY-ROCKS ; REE GEOCHEMISTRY ; AEOLIAN DEPOSITS ; ORDOS DESERTS ; TRACE-ELEMENT ; RIVER-BASIN ; EVOLUTION ; ORIGIN
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362819
作者单位	[Li, Zhuolun; Chen, Qiujie; Dong, Shipei; Zhang, Dezhong; Yu, Xinhui; Zhang, Cheng] Lanzhou Univ, Coll Earth & Environm Sci, Ctr Glacier & Desert Res, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhuolun,Chen, Qiujie,Dong, Shipei,et al. Applicability of rare earth elements in eolian sands from desert as proxies for provenance: A case study in the Badain Jaran Desert, Northwestern China[J]. 兰州大学,2021,207.
APA	Li, Zhuolun,Chen, Qiujie,Dong, Shipei,Zhang, Dezhong,Yu, Xinhui,&Zhang, Cheng.(2021).Applicability of rare earth elements in eolian sands from desert as proxies for provenance: A case study in the Badain Jaran Desert, Northwestern China.CATENA,207.
MLA	Li, Zhuolun,et al."Applicability of rare earth elements in eolian sands from desert as proxies for provenance: A case study in the Badain Jaran Desert, Northwestern China".CATENA 207(2021).