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

Tropical sea temperatures in the high-latitude South Pacific during the Eocene
Tropical sea temperatures in the high-latitude South Pacific during the Eocene
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.
0091-7613
99-102
Hollis, Christopher J.
203511ab-eec4-41c5-b718-622189de5dfc
Handley, Luke
e2d80819-9caa-40b5-963c-eb9b827133ad
Crouch, Erica M.
8d93a076-3dd9-4435-896d-c5c4ebc01b01
Morgans, Hugh E.G.
b5e8fb2f-04ae-4145-8c3a-29f3d7102722
Baker, Joel A.
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Creech, John
c266fb1c-f6d0-4d9d-b126-531e2fa0fd5d
Collins, Katie S.
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Gibbs, Samantha J.
82dfbcbc-3a8a-40da-8a80-fe7ad83f3110
Huber, Matthew
cac8c146-e2e3-4758-9fe9-46aa85e35ad2
Schouten, Stefan
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Zachos, James C.
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Pancost, Richard D.
5914e19e-7777-4304-9fd8-86e2e9cfe8a1
Hollis, Christopher J.
203511ab-eec4-41c5-b718-622189de5dfc
Handley, Luke
e2d80819-9caa-40b5-963c-eb9b827133ad
Crouch, Erica M.
8d93a076-3dd9-4435-896d-c5c4ebc01b01
Morgans, Hugh E.G.
b5e8fb2f-04ae-4145-8c3a-29f3d7102722
Baker, Joel A.
6b66db08-3b82-4f3f-aad7-6b22fae38a39
Creech, John
c266fb1c-f6d0-4d9d-b126-531e2fa0fd5d
Collins, Katie S.
1057be95-90cd-457e-8291-8a3f3b6afcfc
Gibbs, Samantha J.
82dfbcbc-3a8a-40da-8a80-fe7ad83f3110
Huber, Matthew
cac8c146-e2e3-4758-9fe9-46aa85e35ad2
Schouten, Stefan
0d0291ca-b8dc-48a2-b61c-798c650ec1fd
Zachos, James C.
c262d59f-aadc-4e09-b844-098db9a0e3c5
Pancost, Richard D.
5914e19e-7777-4304-9fd8-86e2e9cfe8a1

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).

Record type: Article

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.

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Published date: February 2009
Organisations: Ocean and Earth Science

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Local EPrints ID: 65591
URI: http://eprints.soton.ac.uk/id/eprint/65591
ISSN: 0091-7613
PURE UUID: 86eb4e53-0b31-43df-9546-ae7d4e0c0680

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Date deposited: 24 Feb 2009
Last modified: 19 Jul 2019 23:52

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Contributors

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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