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), 99-102. (doi:10.1130/G25200A.1).

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Description/Abstract

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.

Item Type: Article
ISSNs: 0091-7613 (print)
Related URLs:
Subjects: Q Science > QE Geology
G Geography. Anthropology. Recreation > GC Oceanography
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 65591
Date Deposited: 24 Feb 2009
Last Modified: 27 Mar 2014 18:46
URI: http://eprints.soton.ac.uk/id/eprint/65591

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