Provenance of sub-aerial surface sediments in the Tarim Basin, Western China | |
Chen, Xiuling1,3; Song, Yougui2,4; Li, Yue2; Huang, Yuzhen1,3; Zhou, Xiaoxiao1,3; Fan, Yifei1,3 | |
通讯作者 | Song, Yougui(syg@ieecas.cn) |
2021-03-01 | |
发表期刊 | CATENA |
ISSN | 0341-8162 |
卷号 | 198页码:17 |
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. |
关键词 | Geochemistry Rare earth element Trace element Grain-size fractions Taklamakan Desert |
DOI | 10.1016/j.catena.2020.105014 |
关键词[WOS] | RARE-EARTH-ELEMENTS ; TAKLIMAKAN DESERT ; ASIAN DUST ; GRAIN-SIZE ; GEOCHEMICAL EVIDENCE ; TAKLAMAKAN DESERT ; LOESS PLATEAU ; MINERAL DUST ; XINJIANG ; EVOLUTION |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[41977385] ; National Natural Science Foundation of China[41302149] ; Innovation Research Team Fund of Fujian Normal University[IRTL1705] ; Natural Science Foundation of Fujian[2019J01259] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQGPY2006] |
WOS研究方向 | Geology ; Agriculture ; Water Resources |
项目资助者 | National Natural Science Foundation of China ; Innovation Research Team Fund of Fujian Normal University ; Natural Science Foundation of Fujian ; Strategic Priority Research Program of the Chinese Academy of Sciences ; State Key Laboratory of Loess and Quaternary Geology |
WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
WOS记录号 | WOS:000605337000051 |
出版者 | ELSEVIER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/15871 |
专题 | 古环境研究室 第四纪科学与全球变化卓越创新中心 |
通讯作者 | Song, Yougui |
作者单位 | 1.Fujian Normal Univ, Inst Geog, Fuzhou 350007, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, 97 Yanxiang Rd, Xian 710061, Peoples R China 3.Fujian Normal Univ, State Key Lab Subtrop Mt Ecol, Minist Sci & Technol & Fujian Prov, Fuzhou 350007, Peoples R China 4.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]. CATENA,2021,198:17. |
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,198,17. |
MLA | Chen, Xiuling,et al."Provenance of sub-aerial surface sediments in the Tarim Basin, Western China".CATENA 198(2021):17. |
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