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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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.
|Subjects:||Q Science > QE Geology
G Geography. Anthropology. Recreation > GC Oceanography
|Divisions:||University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
|Date Deposited:||24 Feb 2009|
|Last Modified:||06 Aug 2015 02:53|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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