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dc.contributor.authorMarschalek, JW
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, SR
dc.contributor.authorPérez, LF
dc.contributor.authorColleoni, F
dc.contributor.authorPrebble, JG
dc.contributor.authorvan Peer, TE
dc.contributor.authorPerotti, M
dc.contributor.authorShevenell, AE
dc.contributor.authorBrowne, I
dc.contributor.authorKulhanek, DK
dc.contributor.authorLevy, R
dc.contributor.authorHarwood, D
dc.contributor.authorSullivan, NB
dc.contributor.authorMeyers, SR
dc.contributor.authorGriffith, EM
dc.contributor.authorHillenbrand, C-D
dc.contributor.authorGasson, E
dc.contributor.authorSiegert, MJ
dc.contributor.authorKeisling, B
dc.contributor.authorLicht, KJ
dc.contributor.authorKuhn, G
dc.contributor.authorDodd, JP
dc.contributor.authorBoshuis, C
dc.contributor.authorDe Santis, L
dc.contributor.authorMcKay, RM
dc.contributor.authorAsh, J
dc.contributor.authorBeny, F
dc.contributor.authorBrowne, IM
dc.contributor.authorCortese, G
dc.contributor.authorDe Santis, L
dc.contributor.authorDodd, JP
dc.contributor.authorEsper, OM
dc.contributor.authorGales, Jenny
dc.contributor.authorHarwood, DM
dc.contributor.authorIshino, S
dc.contributor.authorKeisling, BA
dc.contributor.authorKim, S
dc.contributor.authorKim, S
dc.contributor.authorKulhanek, DK
dc.contributor.authorLaberg, JS
dc.contributor.authorLeckie, RM
dc.contributor.authorMcKay, RM
dc.contributor.authorMüller, J
dc.contributor.authorPatterson, MO
dc.contributor.authorRomans, BW
dc.contributor.authorRomero, OE
dc.contributor.authorSangiorgi, F
dc.contributor.authorSeki, O
dc.contributor.authorShevenell, AE
dc.contributor.authorSingh, SM
dc.contributor.authorCordeiro de Sousa, IM
dc.contributor.authorSugisaki, ST
dc.contributor.authorvan de Flierdt, T
dc.contributor.authorvan Peer, TE
dc.contributor.authorXiao, W
dc.contributor.authorXiong, Z
dc.date.accessioned2022-01-31T16:27:06Z
dc.date.issued2021-12-16
dc.identifier.issn0028-0836
dc.identifier.issn1476-4687
dc.identifier.urihttp://hdl.handle.net/10026.1/18629
dc.description.abstract

Early to Middle Miocene sea-level oscillations of approximately 40-60 m estimated from far-field records1-3 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 evolution.

dc.format.extent450-455
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAntarctic Regions
dc.subjectClimate Models
dc.subjectHistory, Ancient
dc.subjectIce Cover
dc.subjectSea Level Rise
dc.subjectSeawater
dc.titleA large West Antarctic Ice Sheet explains early Neogene sea-level amplitude
dc.typejournal-article
dc.typeHistorical Article
dc.typeJournal Article
dc.typeResearch Support, Non-U.S. Gov't
dc.typeResearch Support, U.S. Gov't, Non-P.H.S.
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34912089
plymouth.issue7889
plymouth.volume600
plymouth.publication-statusPublished
plymouth.journalNature
dc.identifier.doi10.1038/s41586-021-04148-0
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2021-10-14
dc.rights.embargodate2022-6-15
dc.identifier.eissn1476-4687
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1038/s41586-021-04148-0
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
rioxxterms.licenseref.startdate2021-12-16
rioxxterms.typeJournal Article/Review


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