The heartbeat of the Oligocene climate system
The heartbeat of the Oligocene climate system
A 13-million-year continuous record of Oligocene climate from the equatorial Pacific reveals a pronounced “heartbeat” in the global carbon cycle and periodicity of glaciations. This heartbeat consists of 405,000-, 127,000-, and 96,000-year eccentricity cycles and 1.2-million-year obliquity cycles in periodically recurring glacial and carbon cycle events. That climate system response to intricate orbital variations suggests a fundamental interaction of the carbon cycle, solar forcing, and glacial events. Box modeling shows that the interaction of the carbon cycle and solar forcing modulates deep ocean acidity as well as the production and burial of global biomass. The pronounced 405,000-year eccentricity cycle is amplified by the long residence time of carbon in the oceans.
1894-1898
Pälike, H.
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Norris, R.D.
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Herrle, J.O.
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Wilson, P.A.
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Coxall, H.K.
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Lear, C.H.
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Shackleton, N.J.
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Tripati, A.K.
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Wade, B.S.
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22 December 2006
Pälike, H.
b9bf7798-ad8c-479b-8487-dd9a30a61fa5
Norris, R.D.
81ac4a17-2a84-4c7c-9c02-c9f14bb2695e
Herrle, J.O.
666d87e9-0e21-4d4f-bb8e-51f7b0a15a87
Wilson, P.A.
f940a9f0-fa5a-4a64-9061-f0794bfbf7c6
Coxall, H.K.
5de02922-b619-4e86-b7ba-373b8569716a
Lear, C.H.
112c634b-d610-4413-ad3d-5991b454593e
Shackleton, N.J.
754bf946-be73-466b-9cde-558894553058
Tripati, A.K.
39b60a55-55e5-41fd-8c4d-d235ff4a0087
Wade, B.S.
4caf9386-0e3f-479b-a491-6c8dff99dad1
Pälike, H., Norris, R.D., Herrle, J.O., Wilson, P.A., Coxall, H.K., Lear, C.H., Shackleton, N.J., Tripati, A.K. and Wade, B.S.
(2006)
The heartbeat of the Oligocene climate system.
Science, 314 (5807), .
(doi:10.1126/science.1133822).
Abstract
A 13-million-year continuous record of Oligocene climate from the equatorial Pacific reveals a pronounced “heartbeat” in the global carbon cycle and periodicity of glaciations. This heartbeat consists of 405,000-, 127,000-, and 96,000-year eccentricity cycles and 1.2-million-year obliquity cycles in periodically recurring glacial and carbon cycle events. That climate system response to intricate orbital variations suggests a fundamental interaction of the carbon cycle, solar forcing, and glacial events. Box modeling shows that the interaction of the carbon cycle and solar forcing modulates deep ocean acidity as well as the production and burial of global biomass. The pronounced 405,000-year eccentricity cycle is amplified by the long residence time of carbon in the oceans.
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Submitted date: 14 August 2006
Published date: 22 December 2006
Identifiers
Local EPrints ID: 42935
URI: http://eprints.soton.ac.uk/id/eprint/42935
ISSN: 0036-8075
PURE UUID: 9deb5578-ee3b-45ac-81e6-52e3768fd81e
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Date deposited: 22 Dec 2006
Last modified: 16 Mar 2024 03:13
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Contributors
Author:
H. Pälike
Author:
R.D. Norris
Author:
J.O. Herrle
Author:
H.K. Coxall
Author:
C.H. Lear
Author:
N.J. Shackleton
Author:
A.K. Tripati
Author:
B.S. Wade
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