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={James C. Zachos and Ursula R{\"o}hl and Stephen A. Schellenberg and Appy Sluijs and David A. Hodell and D. Clay Kelly and Ellen Thomas and Micah J. Nicolo and Isabella Raffi and Lucas J. Lourens and Heather K McCarren and Dick 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… 

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 system

Paleocene-Eocene Thermal Maximum and the Opening of the Northeast Atlantic

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 overlies

The seawater carbon inventory at the Paleocene–Eocene Thermal Maximum

  • L. HaynesB. Hönisch
  • Environmental Science, Geography
    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.

The Paleocene‐Eocene Thermal Maximum: How much carbon is enough?

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 of

On the duration of the Paleocene‐Eocene thermal maximum (PETM)

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 massive

Maximum Eocene Thermal − Extreme warming of tropical waters during the Paleocene

The Paleocene–Eocene Thermal Maximum (PETM), ca. 56 Ma, was a major global environmental perturbation attributed to a rapid rise in the concentration of greenhouse gases in the atmosphere.

What caused the long duration of the Paleocene-Eocene Thermal Maximum?

  • R. Zeebe
  • Environmental Science, Geography
  • 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.

Surface ocean warming and acidification driven by rapid carbon release precedes Paleocene-Eocene Thermal Maximum

The Paleocene-Eocene Thermal Maximum (PETM) is recognized by a major negative carbon isotope (δ13C) excursion (CIE) signifying an injection of isotopically light carbon into exogenic reservoirs, the

Beyond methane: Towards a theory for the Paleocene-Eocene Thermal Maximum

...

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