A large West Antarctic Ice Sheet explains early Neogene sea-level amplitude
dc.contributor.author | Marschalek, JW | |
dc.contributor.author | Zurli, L | |
dc.contributor.author | Talarico, F | |
dc.contributor.author | van de Flierdt, T | |
dc.contributor.author | Vermeesch, P | |
dc.contributor.author | Carter, A | |
dc.contributor.author | Beny, F | |
dc.contributor.author | Bout-Roumazeilles, V | |
dc.contributor.author | Sangiorgi, F | |
dc.contributor.author | Hemming, SR | |
dc.contributor.author | Pérez, LF | |
dc.contributor.author | Colleoni, F | |
dc.contributor.author | Prebble, JG | |
dc.contributor.author | van Peer, TE | |
dc.contributor.author | Perotti, M | |
dc.contributor.author | Shevenell, AE | |
dc.contributor.author | Browne, I | |
dc.contributor.author | Kulhanek, DK | |
dc.contributor.author | Levy, R | |
dc.contributor.author | Harwood, D | |
dc.contributor.author | Sullivan, NB | |
dc.contributor.author | Meyers, SR | |
dc.contributor.author | Griffith, EM | |
dc.contributor.author | Hillenbrand, C-D | |
dc.contributor.author | Gasson, E | |
dc.contributor.author | Siegert, MJ | |
dc.contributor.author | Keisling, B | |
dc.contributor.author | Licht, KJ | |
dc.contributor.author | Kuhn, G | |
dc.contributor.author | Dodd, JP | |
dc.contributor.author | Boshuis, C | |
dc.contributor.author | De Santis, L | |
dc.contributor.author | McKay, RM | |
dc.contributor.author | Ash, J | |
dc.contributor.author | Beny, F | |
dc.contributor.author | Browne, IM | |
dc.contributor.author | Cortese, G | |
dc.contributor.author | De Santis, L | |
dc.contributor.author | Dodd, JP | |
dc.contributor.author | Esper, OM | |
dc.contributor.author | Gales, Jenny | |
dc.contributor.author | Harwood, DM | |
dc.contributor.author | Ishino, S | |
dc.contributor.author | Keisling, BA | |
dc.contributor.author | Kim, S | |
dc.contributor.author | Kim, S | |
dc.contributor.author | Kulhanek, DK | |
dc.contributor.author | Laberg, JS | |
dc.contributor.author | Leckie, RM | |
dc.contributor.author | McKay, RM | |
dc.contributor.author | Müller, J | |
dc.contributor.author | Patterson, MO | |
dc.contributor.author | Romans, BW | |
dc.contributor.author | Romero, OE | |
dc.contributor.author | Sangiorgi, F | |
dc.contributor.author | Seki, O | |
dc.contributor.author | Shevenell, AE | |
dc.contributor.author | Singh, SM | |
dc.contributor.author | Cordeiro de Sousa, IM | |
dc.contributor.author | Sugisaki, ST | |
dc.contributor.author | van de Flierdt, T | |
dc.contributor.author | van Peer, TE | |
dc.contributor.author | Xiao, W | |
dc.contributor.author | Xiong, Z | |
dc.date.accessioned | 2022-01-31T16:27:06Z | |
dc.date.issued | 2021-12-16 | |
dc.identifier.issn | 0028-0836 | |
dc.identifier.issn | 1476-4687 | |
dc.identifier.uri | http://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.extent | 450-455 | |
dc.format.medium | Print-Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Springer Science and Business Media LLC | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | Antarctic Regions | |
dc.subject | Climate Models | |
dc.subject | History, Ancient | |
dc.subject | Ice Cover | |
dc.subject | Sea Level Rise | |
dc.subject | Seawater | |
dc.title | A large West Antarctic Ice Sheet explains early Neogene sea-level amplitude | |
dc.type | journal-article | |
dc.type | Historical Article | |
dc.type | Journal Article | |
dc.type | Research Support, Non-U.S. Gov't | |
dc.type | Research Support, U.S. Gov't, Non-P.H.S. | |
plymouth.author-url | https://www.ncbi.nlm.nih.gov/pubmed/34912089 | |
plymouth.issue | 7889 | |
plymouth.volume | 600 | |
plymouth.publication-status | Published | |
plymouth.journal | Nature | |
dc.identifier.doi | 10.1038/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.place | England | |
dcterms.dateAccepted | 2021-10-14 | |
dc.rights.embargodate | 2022-6-15 | |
dc.identifier.eissn | 1476-4687 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1038/s41586-021-04148-0 | |
rioxxterms.licenseref.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
rioxxterms.licenseref.startdate | 2021-12-16 | |
rioxxterms.type | Journal Article/Review |