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

DC Field Value Language Wang, W. - Xu, Z. - Li, T. - Wan, S. - Cai, M. - Chen, H. - Sun, R. - Lim, Dhongil - 2020-12-10T07:51:11Z - 2020-12-10T07:51:11Z - 2020-05-27 - 2020-05 -
dc.identifier.issn 0016-7568 -
dc.identifier.uri -
dc.description.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. © Cambridge University Press 2019. -
dc.description.uri 1 -
dc.language English -
dc.publisher Cambridge University Press -
dc.title Sources and origins of eolian dust to the Philippine Sea determined by major minerals and elemental geochemistry -
dc.type Article -
dc.citation.endPage 728 -
dc.citation.startPage 719 -
dc.citation.title Geological Magazine -
dc.citation.volume 157 -
dc.identifier.bibliographicCitation Geological Magazine, v.157, pp.719 - 728 -
dc.identifier.doi 10.1017/S0016756819001031 -
dc.identifier.scopusid 2-s2.0-85072913878 -
dc.identifier.wosid 000534526500003 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus PARECE VELA BASIN -
dc.subject.keywordPlus ASIAN DUST -
dc.subject.keywordPlus SEASONAL-VARIATIONS -
dc.subject.keywordPlus RADIOGENIC SR -
dc.subject.keywordPlus TRACE-ELEMENT -
dc.subject.keywordPlus QUARTZ GRAINS -
dc.subject.keywordPlus SEDIMENTS -
dc.subject.keywordPlus PACIFIC -
dc.subject.keywordPlus ND -
dc.subject.keywordPlus PROVENANCE -
dc.subject.keywordAuthor modern eolian dust -
dc.subject.keywordAuthor Philippine Sea -
dc.subject.keywordAuthor provenance -
dc.subject.keywordAuthor transport mechanism -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
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South Sea Research Institute > Library of Marine Samples > 1. Journal Articles
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