Sr-Nd isotope composition and clay mineral assemblages in eolian dust from the central Philippine Sea over the last 600 kyr: Implications for the transport mechanism of Asian dust SCIE SCOPUS

DC Field Value Language Seo, Inah - Lee, Yong Il - Yoo, Chan Min - Kim, Hyung Jeek - Hyeong, Kiseong - 2020-04-20T04:25:28Z - 2020-04-20T04:25:28Z - 2020-01-28 - 2014-10 -
dc.identifier.issn 0148-0227 -
dc.identifier.uri -
dc.description.abstract Dust transport to the tropical/subtropical northwestern Pacific over the past 600 kyr was investigated using radiogenic isotopes (Sr-87/Sr-86 and eNd), together with the clay mineral composition, of eolian dust preserved in a sediment core obtained from the Philippine Sea (12 degrees 30'N, 134 degrees 60'E). These data revealed the influence of two prevailing dust sources, namely, the Asian deserts and nearby volcanic arcs (e.g., the Luzon Arc), with average contributions of around 70% and 30%, respectively, from each. The clay mineral composition of the core resembled dust from the central Asian deserts (CADs; e. g., the Taklimakan Desert) as in the north-central Pacific, but published aerosol data collected near the study site during winter/spring have the mineralogical signature of dust originating from the East Asian deserts (EADs). These data indicate that the relative contribution of EAD dust increases with the northeasterly surface winds associated with the East Asian Winter Monsoon (EAWM) during winter/spring, but the Prevailing Westerlies and Trade Winds that carry dust from the CADs is the dominant transport agent in the overall dust budget of the study site. The results of this study contradict the prevailing view that direct dust transport by the EAWM winds in spring dominates the annual flux of eolian dust in the northwest Pacific. -
dc.description.uri 1 -
dc.language English -
dc.title Sr-Nd isotope composition and clay mineral assemblages in eolian dust from the central Philippine Sea over the last 600 kyr: Implications for the transport mechanism of Asian dust -
dc.type Article -
dc.citation.endPage 11504 -
dc.citation.startPage 11492 -
dc.citation.volume 119 -
dc.citation.number 19 -
dc.identifier.bibliographicCitation JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v.119, no.19, pp.11492 - 11504 -
dc.identifier.doi 10.1002/2014JD022025 -
dc.identifier.scopusid 2-s2.0-84944194462 -
dc.identifier.wosid 000344053400032 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus NORTH PACIFIC-OCEAN -
dc.subject.keywordPlus EASTERN EQUATORIAL PACIFIC -
dc.subject.keywordPlus GRAIN-SIZE DISTRIBUTION -
dc.subject.keywordPlus CHINA-SEA -
dc.subject.keywordPlus DEEP-SEA -
dc.subject.keywordPlus SURFACE SEDIMENTS -
dc.subject.keywordPlus WESTERN PACIFIC -
dc.subject.keywordPlus GLACIAL MAXIMUM -
dc.subject.keywordPlus ATLANTIC OCEAN -
dc.subject.keywordPlus MARIANA ARC -
dc.relation.journalWebOfScienceCategory Meteorology & Atmospheric Sciences -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Meteorology & Atmospheric Sciences -
Appears in Collections:
Marine Resources Research Division > Global Ocean Research Center > 1. Journal Articles
Marine Resources Research Division > Deep-sea Mineral Resources Research Center > 1. Journal Articles
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