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Journal Articles Nature Year : 2012

A Cenozoic record of the equatorial Pacific carbonate compensation depth

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Heiko Pälike
  • Function : Author
Mitchell W. Lyle
  • Function : Author
Hiroshi Nishi
  • Function : Author
Isabella Raffi
  • Function : Author
Andy Ridgwell
Kusali Gamage
  • Function : Author
Adam Klaus
  • Function : Author
Gary Acton
  • Function : Author
Louise Anderson
  • Function : Author
Jan Backman
  • Function : Author
Jack Baldauf
  • Function : Author
Steven M. Bohaty
  • Function : Author
Paul Bown
  • Function : Author
William Busch
  • Function : Author
Jim E. T. Channell
  • Function : Author
Cecily O. J. Chun
  • Function : Author
Margaret Delaney
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Pawan Dewangan
  • Function : Author
Tom Dunkley Jones
  • Function : Author
Kirsty M. Edgar
  • Function : Author
Helen Evans
  • Function : Author
Peter Fitch
  • Function : Author
Gavin L. Foster
Nikolaus Gussone
  • Function : Author
Hitoshi Hasegawa
  • Function : Author
Ed C. Hathorne
  • Function : Author
Hiroki Hayashi
  • Function : Author
Jens O. Herrle
  • Function : Author
Ann Holbourn
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Steve Hovan
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Kiseong Hyeong
  • Function : Author
Koichi Iijima
  • Function : Author
Takashi Ito
  • Function : Author
Shin-Ichi Kamikuri
  • Function : Author
Katsunori Kimoto
  • Function : Author
Junichiro Kuroda
  • Function : Author
Lizette Leon-Rodriguez
  • Function : Author
Alberto Malinverno
  • Function : Author
Ted C. Moore
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Brandon H. Murphy
  • Function : Author
Daniel P. Murphy
  • Function : Author
Hideto Nakamura
  • Function : Author
Kaoru Ogane
  • Function : Author
Christian Ohneiser
  • Function : Author
Carl Richter
  • Function : Author
Rebecca Robinson
  • Function : Author
Eelco J. Rohling
  • Function : Author
Oscar Romero
  • Function : Author
Ken Sawada
  • Function : Author
Howie Scher
  • Function : Author
Leah Schneider
  • Function : Author
Appy Sluijs
  • Function : Author
Hiroyuki Takata
  • Function : Author
Jun Tian
  • Function : Author
Akira Tsujimoto
  • Function : Author
Bridget S. Wade
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Thomas Westerhold
  • Function : Author
Roy Wilkens
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Trevor Williams
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Paul A. Wilson
  • Function : Author
Yuhji Yamamoto
  • Function : Author
Shinya Yamamoto
  • Function : Author
Toshitsugu Yamazaki
  • Function : Author
Richard E. Zeebe
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Abstract

Atmospheric carbon dioxide concentrations and climate are regulated on geological timescales by the balance between carbon input from volcanic and metamorphic outgassing and its removal by weathering feedbacks; these feedbacks involve the erosion of silicate rocks and organic-carbon-bearing rocks. The integrated effect of these processes is reflected in the calcium carbonate compensation depth, which is the oceanic depth at which calcium carbonate is dissolved. Here we present a carbonate accumulation record that covers the past 53 million years from a depth transect in the equatorial Pacific Ocean. The carbonate compensation depth tracks long-term ocean cooling, deepening from 3.0-3.5 kilometres during the early Cenozoic (approximately 55 million years ago) to 4.6 kilometres at present, consistent with an overall Cenozoic increase in weathering. We find large superimposed fluctuations in carbonate compensation depth during the middle and late Eocene. Using Earth system models, we identify changes in weathering and the mode of organic-carbon delivery as two key processes to explain these large-scale Eocene fluctuations of the carbonate compensation depth.

Dates and versions

insu-03641588 , version 1 (14-04-2022)

Identifiers

Cite

Heiko Pälike, Mitchell W. Lyle, Hiroshi Nishi, Isabella Raffi, Andy Ridgwell, et al.. A Cenozoic record of the equatorial Pacific carbonate compensation depth. Nature, 2012, 488, pp.609-614. ⟨10.1038/nature11360⟩. ⟨insu-03641588⟩
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