干旱区生态环境知识资源中心(Arid): Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry

Arid

DOI	10.1017/S0016756819001031
	Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry
	Wang, Wei 1,2,3,4,5; Xu, Zhaokai 1,2,3,4,5; Li, Tiegang 2,5,6; Wan, Shiming 1,2,3,4,5; Cai, Mingjiang 1,2,3,4,5; Chen, Hongjin 1,2,3,4,5; Sun, Rongtao 7; Lim, Dhongil 8
通讯作者	Xu, Zhaokai ; Lim, Dhongil
来源期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
EISSN	1469-5081
出版年	2020
卷号	157 期号:5 页码:719-728
英文摘要	We investigated the microscopic mineral characteristics of modern eolian dust particulates and the trace-element compositions of the siliciclastic fractions of these samples, collected from the Philippine Sea in 2014 and 2015, and conducted an air mass backwards trajectory analysis of dust particulates in the spring and winter of 2015, to better constrain the provenances and transport dynamics of dust delivered to this region. The microscopic minerals show obvious signatures of dust deposition and physical abrasion, indicating long-distance wind transport from the Asian deserts. The trace-element compositions (Zr-Th-Sc) display a binary mixture of eolian materials derived from the eastern Asian deserts and the central Asian deserts, which is similar to the result of the Sr-Nd isotopic compositions of modern sediment trap sediments collected on the Benham Rise in 2015. We demonstrate that modern dust sediments in the Philippine Sea primarily originate from the Ordos Desert (generally > 80%), while the contributions of the Taklimakan Desert and the Badain Jaran Desert are small. Eolian dust particulates raised from source regions are predominantly transported to the Philippine Sea by the East Asian winter monsoon, but not by the westerlies. In addition, our results indicate that increased precipitation in the source regions can result in relatively low dust fluxes in the Philippine Sea, and there is a period of 6-7 days for eolian dust originating from source areas to be delivered to the Philippine Sea.
英文关键词	modern eolian dust Philippine Sea provenance transport mechanism
类型	Article
语种	英语
国家	Peoples R China ; South Korea
收录类别	SCI-E
WOS记录号	WOS:000534526500003
WOS关键词	PARECE VELA BASIN ; ASIAN DUST ; SEASONAL-VARIATIONS ; RADIOGENIC SR ; TRACE-ELEMENT ; QUARTZ GRAINS ; SEDIMENTS ; PACIFIC ; ND ; PROVENANCE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319012
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China; 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China; 4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 6.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentoi & Environm Geol, Qingdao 266061, Peoples R China; 7.Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255000, Peoples R China; 8.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje 53201, South Korea
推荐引用方式 GB/T 7714	Wang, Wei,Xu, Zhaokai,Li, Tiegang,et al. Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry[J],2020,157(5):719-728.
APA	Wang, Wei.,Xu, Zhaokai.,Li, Tiegang.,Wan, Shiming.,Cai, Mingjiang.,...&Lim, Dhongil.(2020).Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry.GEOLOGICAL MAGAZINE,157(5),719-728.
MLA	Wang, Wei,et al."Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry".GEOLOGICAL MAGAZINE 157.5(2020):719-728.