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Holocene Antarctic melting and lithospheric uplift history of the southern Okinawa trough inferred from mid- to late-Holocene sea level in Iriomote Island, Ryukyu, Japan

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dc.contributor.authorYokoyama, Yusukeen
dc.contributor.authorMaeda, Yasuoen
dc.contributor.authorOkuno, Jun'ichien
dc.contributor.authorMiyairi, Yosukeen
dc.contributor.authorKosuge, Takeharuen
dc.date.accessioned2025-03-21T00:31:53Z
dc.date.available2025-03-21T00:31:53Z
dc.date.issued2016-03-18en
dc.description.abstractRelative sea level deduced from fossil oysters and mangroves are reported for Iriomote Island, Ryukyus, southwestern Japan. Radiocarbon-dated fossil oysters, as well as previously analyzed mangrove muds, are compared to geophysical and glacio-hydro-isostatic adjustment (GIA) models that describe Earth deformation due to changing surface loading. The Holocene-high-stand (HHS) inferred from oyster fossils (Saccostrea echinata and Saccostrea malaboensis) is 2.7 m at ca. 3500 years ago, after which sea level gradually fell to present level. The HHS magnitude attributed to GIA for the last ca. 4000 is between 1 and 1.5 m above present day sea level, and the residual indicates the long-term lithospheric uplift rate of the island. The timing of peak HHS also indicates that late Holocene melting mainly from Antarctica ceased by approximately 4000 years ago.en
dc.description.sponsorshipWe thank Mitsugi and Chieko Matsumoto for supports at the field, Chikako Sawada and Takahiro Aze for laboratory assistance and Stephen Obrochta for discussions about the manuscript. We thank also A. Purcell and T. Esat for comments on the manuscript. This work was partly supported from JSPS ( 26247085 ) to YY and Fukutake foundation to YM. This paper is a contribution to INQUA commission on Coastal and Marine Processes and PAGES PALSEA program.en
dc.description.statustrueen
dc.format.extent7en
dc.identifier.otherScopus:84928406640en
dc.identifier.urihttps://dspace-test.anu.edu.au/handle/1885/733725483
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84928406640&partnerID=8YFLogxKen
dc.language.isoEnglishen
dc.rightsPublisher Copyright: © 2015 Elsevier Ltd and INQUA.en
dc.sourceQuaternary Internationalen
dc.subjectAntarcticaen
dc.subjectGlacio hydro isostasyen
dc.subjectHoloceneen
dc.subjectRyukyuen
dc.subjectSea levelen
dc.subjectTectonicsen
dc.titleHolocene Antarctic melting and lithospheric uplift history of the southern Okinawa trough inferred from mid- to late-Holocene sea level in Iriomote Island, Ryukyu, Japanen
dc.typeArticleen
local.bibliographicCitation.lastpage348en
local.bibliographicCitation.startpage342en
local.contributor.affiliationYokoyama, Yusuke; The University of Tokyoen
local.contributor.affiliationMaeda, Yasuo; University of Hyogoen
local.contributor.affiliationOkuno, Jun'ichi; Research Organization of Information and Systems, National Institute of Polar Researchen
local.contributor.affiliationMiyairi, Yosuke; The University of Tokyoen
local.contributor.affiliationKosuge, Takeharu; University of the Ryukyusen
local.identifier.citationvolume397en
local.identifier.doi10.1016/j.quaint.2015.03.030en
local.identifier.pureb871da4d-01a9-419c-829f-3204a6dbcbdeen
local.type.statusPublisheden

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