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dc.contributor.authorBurr, G. S.
dc.contributor.authorBeck, J. W.
dc.contributor.authorCorrège, Thierry
dc.contributor.authorCabioch, G.
dc.contributor.authorTaylor, F. W.
dc.contributor.authorDonahue, D. J.
dc.date.accessioned2021-02-11T21:23:00Z
dc.date.available2021-02-11T21:23:00Z
dc.date.issued2009-01-01
dc.identifier.citationBurr, G. S., Beck, J. W., Corrège, T., Cabioch, G., Taylor, F. W., & Donahue, D. J. (2009). Modern and Pleistocene reservoir ages inferred from South Pacific corals. Radiocarbon, 51(1), 319-335.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200033853
dc.identifier.urihttp://hdl.handle.net/10150/654264
dc.description.abstractThis paper presents radiocarbon results from modern South Pacific corals from the Marquesas Islands, Vanuatu, Papua New Guinea (PNG), and Easter Island. All of the measurements are from pre-bomb Porites corals that lived during the 1940s and 1950s. The data reflect subannual to multiannual surface ocean 14C variability and allow for precise, unambiguous reservoir age determinations. The results are compared with published values from other coral records throughout the South Pacific, with striking consistency. By comparisons with other published values, we identify 3 South Pacific regions with uniform pre-bomb reservoir ages (1945 to 1955). These are 1) the Central Equatorial South Pacific (361.6 +/- 8.2 14C yr, 2 sigma); 2) the Western Equatorial South Pacific (322.1 +/- 8.6 14C yr, 2 sigma); and 3) the subtropical Pacific (266.8 +/- 13.8 14C yr, 2 sigma). The question of how much, and how fast, South Pacific reservoir ages might have varied in the past is addressed by examining a published record from a Pleistocene coral from Vanuatu that lived over a 700-yr period during the Younger Dryas. The average reservoir age at that time was larger than today, by ~150 yr, and exhibited reservoir age variability on a decadal timescale not seen in modern times. Measured paleo-reservoir ages increase sharply in this record by as many as 300 14C yr in 3 decades. These increases are punctuated by smaller reservoir age decreases, on the order of 150 yr. This reservoir age variability provides a rare picture of active ocean ventilation and ocean-atmosphere exchange at the close of the Pleistocene.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleModern and Pleistocene Reservoir Ages Inferred from South Pacific Corals
dc.typeArticle
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume51
dc.source.issue1
dc.source.beginpage319
dc.source.endpage335
refterms.dateFOA2021-02-11T21:23:00Z


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