Show simple item record  

dc.contributor.authorDougherty, Amy J.en_NZ
dc.contributor.authorThomas, , Zoë A.en_NZ
dc.contributor.authorFogwill, Christopheren_NZ
dc.contributor.authorHogg, Alan G.en_NZ
dc.contributor.authorPalmer, Jonathanen_NZ
dc.contributor.authorRainsley, Eleanoren_NZ
dc.contributor.authorWilliams, Alan N.en_NZ
dc.contributor.authorUlm, Seanen_NZ
dc.contributor.authorRogers, Kerryleeen_NZ
dc.contributor.authorJones, Brian G.en_NZ
dc.contributor.authorTurney, Chrisen_NZ
dc.coverage.spatialUnited Statesen_NZ
dc.date.accessioned2020-09-15T02:16:58Z
dc.date.available2020-09-15T02:16:58Z
dc.date.issued2019en_NZ
dc.identifier.citationDougherty, A. J., Thomas, Zoë A., Fogwill, C., Hogg, A. G., Palmer, J., Rainsley, E., … Turney, C. (2019). Redating the earliest evidence of the mid-Holocene relative sea-level highstand in Australia and implications for global sea-level rise. PLoS One, 14(7), e0218430. https://doi.org/10.1371/journal.pone.0218430en
dc.identifier.urihttps://hdl.handle.net/10289/13823
dc.description.abstractReconstructing past sea levels can help constrain uncertainties surrounding the rate of change, magnitude, and impacts of the projected increase through the 21st century. Of significance is the mid-Holocene relative sea-level highstand in tectonically stable and remote (far-field) locations from major ice sheets. The east coast of Australia provides an excellent arena in which to investigate changes in relative sea level during the Holocene. Considerable debate surrounds both the peak level and timing of the east coast highstand. The southeast Australian site of Bulli Beach provides the earliest evidence for the establishment of a highstand in the Southern Hemisphere, although questions have been raised about the pretreatment and type of material that was radiocarbon dated for the development of the regional sea-level curve. Here we undertake a detailed morpho- and chronostratigraphic study at Bulli Beach to better constrain the timing of the Holocene highstand in eastern Australia. In contrast to wood and charcoal samples that may provide anomalously old ages, probably due to inbuilt age, we find that short-lived terrestrial plant macrofossils provide a robust chronological framework. Bayesian modelling of the ages provide improved dating of the earliest evidence for a highstand at 6,880±50 cal BP, approximately a millennium later than previously reported. Our results from Bulli now closely align with other sea-level reconstructions along the east coast of Australia, and provide evidence for a synchronous relative sea-level highstand that extends from the Gulf of Carpentaria to Tasmania. Our refined age appears to be coincident with major ice mass loss from Northern Hemisphere and Antarctic ice sheets, supporting previous studies that suggest these may have played a role in the relative sea-level highstand. Further work is now needed to investigate the environmental impacts of regional sea levels, and refine the timing of the subsequent sea-level fall in the Holocene and its influence on coastal evolution.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherPublic Library Science
dc.rights© 2019 Dougherty et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.subjectAntarctic Regionsen_NZ
dc.subjectAustraliaen_NZ
dc.subjectCarbon Isotopesen_NZ
dc.subjectFossilsen_NZ
dc.subjectHistory, Ancienten_NZ
dc.subjectIce Coveren_NZ
dc.subjectSea Level Riseen_NZ
dc.titleRedating the earliest evidence of the mid-Holocene relative sea-level highstand in Australia and implications for global sea-level rise.en_NZ
dc.typeJournal Article
dc.identifier.doi10.1371/journal.pone.0218430en_NZ
dc.relation.isPartOfPLoS Oneen_NZ
pubs.begin-pagee0218430
pubs.elements-id240278
pubs.issue7en_NZ
pubs.publication-statusPublished onlineen_NZ
pubs.volume14en_NZ
dc.identifier.eissn1932-6203en_NZ


Files in this item

This item appears in the following Collection(s)

Show simple item record