Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry

doi:10.1017/S0016756819001031

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry
	Wang, Wei 1,4,5,6,7; Xu, Zhaokai 1,4,5,6,7; Li, Tiegang 1,4,8; Wan, Shiming 1,4,5,6,7; Cai, Mingjiang 1,4,5,6,7; Chen, Hongjin 1,4,5,6,7; Sun, Rongtao 2; Lim, Dhongil 3
刊名	GEOLOGICAL MAGAZINE
	2020-05-01
卷号	157 期号:5 页码:719-728
关键词	modern eolian dust Philippine Sea provenance transport mechanism
ISSN号	0016-7568
DOI	10.1017/S0016756819001031
通讯作者	Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Lim, Dhongil(oceanlim@kiost.ac.kr)
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.
资助项目	National Natural Science Foundation of China[41676038] ; National Natural Science Foundation of China[41876034] ; National Natural Science Foundation of China[41376064] ; Scientific and Technological Innovation Project - Qingdao National Laboratory for Marine Science and Technology[2016ASKJ13] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-04] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-06-02] ; Korea Institute of Ocean Science Technology[PM61310] ; Shandong Provincial Natural Science Foundation, China[ZR2016DM12]
WOS研究方向	Geology
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000534526500003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167572]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Xu, Zhaokai; Lim, Dhongil
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Shandong Univ Technol, Sch Resources & Environm Engn, Zibo 255000, Peoples R China 3.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje 53201, South Korea 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 7.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 8.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentoi & Environm Geol, Qingdao 266061, Peoples R China
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]. GEOLOGICAL MAGAZINE,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.