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dc.contributor.authorMarschalek, J. W.
dc.contributor.authorZurli, L.
dc.contributor.authorTalarico, F.
dc.contributor.authorvan de Flierdt, T.
dc.contributor.authorVermeesch, P.
dc.contributor.authorCarter, A.
dc.contributor.authorBeny, F.
dc.contributor.authorBout-Roumazeilles, V.
dc.contributor.authorSangiorgi, F.
dc.contributor.authorHemming, S. R.
dc.contributor.authorPérez, L. F.
dc.contributor.authorColleoni, F.
dc.contributor.authorPrebble, J. G.
dc.contributor.authorvan Peer, T. E.
dc.contributor.authorPerotti, M.
dc.contributor.authorShevenell, A. E.
dc.contributor.authorBrowne, I.
dc.contributor.authorKulhanek, D. K.
dc.contributor.authorLevy, R.
dc.contributor.authorHarwood, D.
dc.contributor.authorSullivan, N. B.
dc.contributor.authorMeyers, S. R.
dc.contributor.authorGriffith, E. M.
dc.contributor.authorHillenbrand, C. D.
dc.contributor.authorGasson, E.
dc.contributor.authorSiegert, M. J.
dc.contributor.authorKeisling, B.
dc.contributor.authorLicht, K. J.
dc.contributor.authorKuhn, G.
dc.contributor.authorDodd, J. P.
dc.contributor.authorBoshuis, C.
dc.contributor.authorde Santis, L.
dc.contributor.authorMcKay, R. M.
dc.contributor.authorAsh, J.
dc.contributor.authorCortese, G.
dc.contributor.authorEsper, O. V.
dc.contributor.authorGales, J. A.
dc.contributor.authorIshino, S.
dc.contributor.authorKim, Sookwan
dc.contributor.authorKim, Sunghan
dc.contributor.authorLaberg, Jan Sverre
dc.contributor.authorLeckie, R. M.
dc.contributor.authorMuller, J.
dc.contributor.authorPatterson, M. O.
dc.contributor.authorRomans, B. W.
dc.contributor.authorRomero, O. E.
dc.contributor.authorSeki, O.
dc.contributor.authorSingh, S. M.
dc.contributor.authorCordeiro de Sousa, I. M.
dc.contributor.authorSugisaki, S. T.
dc.date.accessioned2022-03-23T07:20:09Z
dc.date.available2022-03-23T07:20:09Z
dc.date.issued2021
dc.description.abstractEarly to Middle Miocene sea-level oscillations of approximately 40–60 m estimated from far-field records1,2,3 are interpreted to reflect the loss of virtually all East Antarctic ice during peak warmth2. This contrasts with ice-sheet model experiments suggesting most terrestrial ice in East Antarctica was retained even during the warmest intervals of the Middle Miocene4,5. Data and model outputs can be reconciled if a large West Antarctic Ice Sheet (WAIS) existed and expanded across most of the outer continental shelf during the Early Miocene, accounting for maximum ice-sheet volumes. Here we provide the earliest geological evidence proving large WAIS expansions occurred during the Early Miocene (~17.72–17.40 Ma). Geochemical and petrographic data show glacimarine sediments recovered at International Ocean Discovery Program (IODP) Site U1521 in the central Ross Sea derive from West Antarctica, requiring the presence of a WAIS covering most of the Ross Sea continental shelf. Seismic, lithological and palynological data reveal the intermittent proximity of grounded ice to Site U1521. The erosion rate calculated from this sediment package greatly exceeds the long-term mean, implying rapid erosion of West Antarctica. This interval therefore captures a key step in the genesis of a marine-based WAIS and a tipping point in Antarctic ice-sheet evolutionen_US
dc.descriptionThis version of the article has been accepted for publication, after peer review and is subject to <a href=https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms>Springer Nature’s AM terms of use</a>, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at <a href=https://doi.org/10.1038/s41586-021-04148-0>https://doi.org/10.1038/s41586-021-04148-0</a>.en_US
dc.identifier.citationMarschalek, Zurli, Talarico, van de Flierdt, Vermeesch, Carter, Beny, Bout-Roumazeilles, Sangiorgi, Hemming SR, Pérez, Colleoni F, Prebble, van Peer, Perotti, Shevenell, Browne, Kulhanek, Levy R, Harwood D, Sullivan, Meyers, Griffith, Hillenbrand, Gasson, Siegert MJ, Keisling, Licht, Kuhn G, Dodd, Boshuis, de Santis L, McKay, Ash JA, Cortese G, Esper, Gales, Ishino, Kim S, Kim S, Laberg JS, Leckie, Muller J, Patterson, Romans, Romero, Seki, Singh, Cordeiro de Sousa, Sugisaki. A large West Antarctic Ice Sheet explains early Neogene sea-level amplitude. Nature. 2021;600:450-455en_US
dc.identifier.cristinIDFRIDAID 2000643
dc.identifier.doi10.1038/s41586-021-04148-0
dc.identifier.issn0028-0836
dc.identifier.issn1476-4687
dc.identifier.urihttps://hdl.handle.net/10037/24498
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalNature
dc.relation.projectIDNatural Environment Research Council: NE/R018219/1en_US
dc.relation.projectIDNatural Environment Research Council: NE/L002515/1en_US
dc.relation.projectIDNatural Environment Research Council: NE/T012285/1en_US
dc.relation.projectIDNatural Environment Research Council: NE/R018235/1en_US
dc.relation.projectIDNatural Environment Research Council: NE/T001518/1en_US
dc.relation.projectIDNational Science Foundation: IODPen_US
dc.relation.projectIDAndre: ACA 2018-027en_US
dc.relation.projectIDNational Science Foundation: OPP-2000995en_US
dc.relation.projectIDAndre: PNRA18-00002en_US
dc.relation.projectIDAndre: PNRA16-00016en_US
dc.relation.projectIDAndre: PNRA18-00233en_US
dc.relation.projectIDNational Science Foundation: OCE-1326927en_US
dc.relation.projectIDAndre: 18-VUW-089en_US
dc.relation.projectIDAndre: ANTA1801en_US
dc.relation.projectIDNational Science Foundation: OPP-1643713en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/792773/EU/West Antarctic Margin Signatures of Ice Sheet Evolution/WAMSISE/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.titleA large West Antarctic Ice Sheet explains early Neogene sea-level amplitudeen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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