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Tropical sea temperatures in the high-latitude South Pacific during the Eocene

Hollis, Christopher J., Handley, Luke, Crouch, Erica M., Morgans, Hugh E.G., Baker, Joel A., Creech, John, Collins, Katie S., Gibbs, Samantha J., Huber, Matthew, Schouten, Stefan, Zachos, James C. and Pancost, Richard D. (2009) Tropical sea temperatures in the high-latitude South Pacific during the Eocene Geology, 37, (2), pp. 99-102. (doi:10.1130/G25200A.1).

Record type: Article


Sea-surface temperature (SST) estimates of ~30 °C from planktic foraminifera and archaeal membrane lipids in bathyal sediments in the Canterbury Basin, New Zealand, support paleontological evidence for a warm subtropical to tropical climate in the early Eocene high-latitude (55°S) southwest Pacific. Such warm SSTs call into question previous estimates based on oxygen isotopes and present a major challenge to climate modelers. Even under hypergreenhouse conditions (2240 ppm CO2), modeled summer SSTs for the New Zealand region do not exceed 20 °C.

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Published date: February 2009
Organisations: Ocean and Earth Science


Local EPrints ID: 65591
ISSN: 0091-7613
PURE UUID: 86eb4e53-0b31-43df-9546-ae7d4e0c0680

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Date deposited: 24 Feb 2009
Last modified: 19 Jul 2017 00:32

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Author: Christopher J. Hollis
Author: Luke Handley
Author: Erica M. Crouch
Author: Hugh E.G. Morgans
Author: Joel A. Baker
Author: John Creech
Author: Katie S. Collins
Author: Matthew Huber
Author: Stefan Schouten
Author: James C. Zachos
Author: Richard D. Pancost

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