| Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry | |
Wang, Wei1,2,3,4,5; Xu, Zhaokai1,2,3,4,5; Li, Tiegang2,5,6 ; Wan, Shiming1,2,3,4,5; Cai, Mingjiang1,2,3,4,5; Chen, Hongjin1,2,3,4,5; Sun, Rongtao7; Lim, Dhongil8
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| 2020-05-01 | |
| Source Publication | GEOLOGICAL MAGAZINE
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| ISSN | 0016-7568 |
| Volume | 157Issue:5Pages:719-728 |
| Corresponding Author | Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Lim, Dhongil(oceanlim@kiost.ac.kr) |
| Abstract | 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. |
| Keyword | modern eolian dust Philippine Sea provenance transport mechanism |
| DOI | 10.1017/S0016756819001031 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary |
| WOS ID | WOS:000534526500003 |
| Publisher | CAMBRIDGE UNIV PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/167573 |
| Collection | 海洋地质与环境重点实验室 |
| Corresponding Author | Xu, Zhaokai; Lim, Dhongil |
| Affiliation | 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 |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation 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. |
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| Sources and origins （1175KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
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