Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum

@article{Zachos2005RapidAO,
  title={Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum},
  author={J. Zachos and U. R{\"o}hl and S. Schellenberg and A. Sluijs and D. Hodell and D. Kelly and Ellen Thomas and M. Nicolo and I. Raffi and L. Lourens and Heather K McCarren and D. Kroon},
  journal={Science},
  year={2005},
  volume={308},
  pages={1611 - 1615}
}
The Paleocene-Eocene thermal maximum (PETM) has been attributed to the rapid release of ∼2000 × 109 metric tons of carbon in the form of methane. In theory, oxidation and ocean absorption of this carbon should have lowered deep-sea pH, thereby triggering a rapid (<10,000-year) shoaling of the calcite compensation depth (CCD), followed by gradual recovery. Here we present geochemical data from five new South Atlantic deep-sea sections that constrain the timing and extent of massive sea-floor… Expand
Rapid and sustained surface ocean acidification during the Paleocene-Eocene Thermal Maximum
The Paleocene-Eocene Thermal Maximum (PETM) has been associated with the release of several thousands of petagrams of carbon (Pg C) as methane and/or carbon dioxide into the ocean-atmosphere systemExpand
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The Paleocene-Eocene thermal maximum (PETM) has been attributed to a sudden release of carbon dioxide and/or methane. 40Ar/39Ar age determinations show that the Danish Ash-17 deposit, which overliesExpand
The seawater carbon inventory at the Paleocene–Eocene Thermal Maximum
  • L. Haynes, B. Hönisch
  • Environmental Science, Medicine
  • Proceedings of the National Academy of Sciences
  • 2020
TLDR
The reconstruction invokes volcanic emissions as a driver of PETM warming and suggests that the buffering capacity of the ocean increased, which helped to remove carbon dioxide from the atmosphere, but estimates confirm that modern CO2 release is occurring much faster than PETM carbon release. Expand
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The Paleocene-Eocene Thermal Maximum (PETM), ∼55.53 million years before present, was an abrupt warming event that involved profound changes in the carbon cycle and led to major perturbations ofExpand
On the duration of the Paleocene-Eocene thermal maximum (PETM)
[1] The Paleocene-Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massiveExpand
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Abstract The Paleocene-Eocene Thermal Maximum (PETM) was a geologically rapid and transient warming event that occurred ca. 56 million years ago (Ma). It was associated with a pronounced negativeExpand
What caused the long duration of the Paleocene-Eocene Thermal Maximum?
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  • Environmental Science, Geology
  • 2013
[1] Paleorecords show that the Paleocene-Eocene Thermal Maximum (PETM, � 56 Ma) was associated with a large carbon cycle anomaly and global warming >5 K, which persisted for at least 50 kyr.Expand
Beyond methane: Towards a theory for the Paleocene-Eocene Thermal Maximum
Abstract Extreme global warmth and an abrupt negative carbon isotope excursion during the Paleocene–Eocene Thermal Maximum (PETM) have been attributed to a massive release of methane hydrate fromExpand
Productivity feedback did not terminate the Paleocene-Eocene Thermal Maximum (PETM)
Abstract. The Paleocene-Eocene Thermal Maximum (PETM) occurred approximately 55 million years ago, and is one of the most dramatic abrupt global warming events in the geological record. This warmingExpand
Reversed deep-sea carbonate ion basin gradient during Paleocene-Eocene thermal maximum
[1] The Paleocene-Eocene thermal maximum (PETM, ∼55 Ma ago) was marked by widespread CaCO3 dissolution in deep-sea sediments, a process that has been attributed to massive release of carbon into theExpand
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