干旱区生态环境知识资源中心(Arid): Source of the aeolian sediments in the Yarlung Tsangpo valley and its potential dust contribution to adjacent oceans

Arid

DOI	10.1002/esp.5351
	Source of the aeolian sediments in the Yarlung Tsangpo valley and its potential dust contribution to adjacent oceans
	Ling, Zhiyong; Yang, Shengli; Xia, Dunsheng; Wang, Xin; Chen, Fahu
通讯作者	Ling, ZY (corresponding author)，Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China.
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2022-03
英文摘要	Surface sediments such as aeolian sand, loess/sandy loess, and fluvial/alluvial clastics are widespread in the Yarlung Tsangpo (YT) catchment and across the Tibetan Plateau (TP). However, it is debated whether the source of the aeolian sediments is local or remote, involving transport across large regions, and whether the surface sediments, especially aeolian deposits, are a major source of global dust. Here, we use strontium-neodymium (Sr-Nd) isotopic analysis and modern observations of dust emissions to investigate the provenance of aeolian sediments from the YT catchment and adjacent areas during different periods (modern, Holocene, Late Pleistocene), and the relationship between surface sediments of the TP and the dust component of sediments in the Japan Sea and the North Pacific Ocean. Strontium-87/strontium-86 (Sr-87/Sr-86) and neodymium isotopic ratio (epsilon(Nd)) show a wide range of variation in different areas (Sr-87/Sr-86 varies from 0.707996 to 0.731078, and epsilon(Nd) from -6.2 to -13.6), influenced by the composition of the clastic material derived from the local parent rock; additionally, there are no significant variations between size fractions. Due to local recycling the aeolian sedimentary systems in the southern TP are supplied with clastic material from proximal sources, and they are unlikely to receive large quantities of long-range dust transported from regions such as the Taklimakan desert in Central Asia. Dust emission occurs mainly in the dry season (from March to May) and the dust is carried on the upper-level westerly jet stream and then deposited downwind in the Japan Sea and the North Pacific Ocean, thus contributing to global dust.
英文关键词	aeolian deposits provenance tracing Sr-Nd isotopes transport mode Yarlung Tsangpo
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000762589300001
WOS关键词	CHINESE LOESS PLATEAU ; TIBETAN PLATEAU ; ISOTOPIC COMPOSITIONS ; TRANSPORT ; ND ; SR ; PROVENANCE ; EVOLUTION ; DEPOSITION ; EROSION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377387
作者单位	[Ling, Zhiyong; Yang, Shengli; Xia, Dunsheng; Wang, Xin; Chen, Fahu] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; [Ling, Zhiyong] Chinese Acad Sci, Qinghai Inst Salt Lakes, Qinghai Prov Key Lab Geol & Environm Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining, Peoples R China; [Chen, Fahu] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Key Lab Alpine Ecol, Beijing, Peoples R China; [Chen, Fahu] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ling, Zhiyong,Yang, Shengli,Xia, Dunsheng,et al. Source of the aeolian sediments in the Yarlung Tsangpo valley and its potential dust contribution to adjacent oceans[J],2022.
APA	Ling, Zhiyong,Yang, Shengli,Xia, Dunsheng,Wang, Xin,&Chen, Fahu.(2022).Source of the aeolian sediments in the Yarlung Tsangpo valley and its potential dust contribution to adjacent oceans.EARTH SURFACE PROCESSES AND LANDFORMS.
MLA	Ling, Zhiyong,et al."Source of the aeolian sediments in the Yarlung Tsangpo valley and its potential dust contribution to adjacent oceans".EARTH SURFACE PROCESSES AND LANDFORMS (2022).