High-resolution and high-precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 346

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dc.citation.articleNumber19en_US
dc.citation.journalTitleProgress in Earth and Planetary Scienceen_US
dc.citation.volumeNumber5en_US
dc.contributor.authorTada, Ryujien_US
dc.contributor.authorIrino, Tomohisaen_US
dc.contributor.authorIkehara, Kenen_US
dc.contributor.authorKarasuda, Akinorien_US
dc.contributor.authorSugisaki, Saikoen_US
dc.contributor.authorXuan, Chuangen_US
dc.contributor.authorSagawa, Takuyaen_US
dc.contributor.authorItaki, Takuyaen_US
dc.contributor.authorKubota, Yoshimien_US
dc.contributor.authorLu, Songen_US
dc.contributor.authorSeki, Arisaen_US
dc.contributor.authorMurray, Richard W.en_US
dc.contributor.authorAlvarez-Zarikian, Carlosen_US
dc.contributor.authorAnderson, William T. Jr.en_US
dc.contributor.authorBassetti, Maria-Angelaen_US
dc.contributor.authorBrace, Bobbi J.en_US
dc.contributor.authorClemens, Steven C.en_US
dc.contributor.authorGurgel, Marcio H. da Costaen_US
dc.contributor.authorDickens, Gerald R.en_US
dc.contributor.authorDunlea, Ann G.en_US
dc.contributor.authorGallagher, Stephen J.en_US
dc.contributor.authorGiosan, Liviuen_US
dc.contributor.authorHenderson, Andrew C.G.en_US
dc.contributor.authorHolbourn, Ann E.en_US
dc.contributor.authorKinsley, Christopher W.en_US
dc.contributor.authorLee, Gwang Sooen_US
dc.contributor.authorLee, Kyung Eunen_US
dc.contributor.authorLofi, Johannaen_US
dc.contributor.authorLopes, Christina I.C.D.en_US
dc.contributor.authorSaavedra-Pellitero, Mariemen_US
dc.contributor.authorPeterson, Larry C.en_US
dc.contributor.authorSingh, Raj K.en_US
dc.contributor.authorToucanne, Samuelen_US
dc.contributor.authorWan, Shimingen_US
dc.contributor.authorZheng, Hongboen_US
dc.contributor.authorZiegler, Martinen_US
dc.date.accessioned2018-07-16T21:54:26Zen_US
dc.date.available2018-07-16T21:54:26Zen_US
dc.date.issued2018en_US
dc.description.abstractThe Quaternary hemipelagic sediments of the Japan Sea are characterized by centimeter- to decimeter-scale alternation of dark and light clay to silty clay, which are bio-siliceous and/or bio-calcareous to a various degree. Each of the dark and light layers are considered as deposited synchronously throughout the deeper (> 500 m) part of the sea. However, attempts for correlation and age estimation of individual layers are limited to the upper few tens of meters. In addition, the exact timing of the depositional onset of these dark and light layers and its synchronicity throughout the deeper part of the sea have not been explored previously, although the onset timing was roughly estimated as ~ 1.5 Ma based on the result of Ocean Drilling Program legs 127/128. Consequently, it is not certain exactly when their deposition started, whether deposition of dark and light layers was synchronous and whether they are correlatable also in the earlier part of their depositional history. The Quaternary hemipelagic sediments of the Japan Sea were drilled at seven sites during Integrated Ocean Drilling Program Expedition 346 in 2013. Alternation of dark and light layers was recovered at six sites whose water depths are > ~ 900 m, and continuous composite columns were constructed at each site. Here, we report our effort to correlate individual dark layers and estimate their ages based on a newly constructed age model at Site U1424 using the best available paleomagnetic datum and marker tephras. The age model is further tuned to LR04 δ18O curve using gamma ray attenuation density (GRA) since it reflects diatom contents that are higher during interglacial high-stands. The constructed age model for Site U1424 is projected to other sites using correlation of dark layers to form a high-resolution and high-precision paleo-observatory network that allows to reconstruct changes in material fluxes with high spatio-temporal resolutions.en_US
dc.identifier.citationTada, Ryuji, Irino, Tomohisa, Ikehara, Ken, et al.. "High-resolution and high-precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 346." <i>Progress in Earth and Planetary Science,</i> 5, (2018) Springer: https://doi.org/10.1186/s40645-018-0167-8.en_US
dc.identifier.doihttps://doi.org/10.1186/s40645-018-0167-8en_US
dc.identifier.urihttps://hdl.handle.net/1911/102444en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleHigh-resolution and high-precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 346en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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