Rapid acidification of the ocean during the Paleocene-Eocene thermal maximum. Zachos, J. C., Röhl, U., Schellenberg, S. A., Sluijs, A., Hodell, D. A., Kelly, D. C., Thomas, E., Nicolo, M., Raffi, I., & Lourens, L. J. Science, 308(5728):1611–1615, 2005. ![Rapid acidification of the ocean during the Paleocene-Eocene thermal maximum [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex 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 (\textless10,000-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 carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly (\textless10,000 years) by more than 2 kilometers and recovered gradually (\textgreater100,000 years). These findings indicate that a large mass of carbon (»2000 × 109 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback.
@article{zachos_rapid_2005,
title = {Rapid acidification of the ocean during the {Paleocene}-{Eocene} thermal maximum},
volume = {308},
url = {http://science.sciencemag.org/content/308/5728/1611.short},
abstract = {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 ({\textless}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 carbonate dissolution coincident with the PETM. The sections, from between 2.7 and 4.8 kilometers water depth, are marked by a prominent clay layer, the character of which indicates that the CCD shoaled rapidly ({\textless}10,000 years) by more than 2 kilometers and recovered gradually ({\textgreater}100,000 years). These findings indicate that a large mass of carbon (»2000 × 109 metric tons of carbon) dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback.},
number = {5728},
urldate = {2016-12-01},
journal = {Science},
author = {Zachos, James C. and Röhl, Ursula and Schellenberg, Stephen A. and Sluijs, Appy and Hodell, David A. and Kelly, Daniel C. and Thomas, Ellen and Nicolo, Micah and Raffi, Isabella and Lourens, Lucas J.},
year = {2005},
keywords = {boundaries, collapse, acidification, oceans},
pages = {1611--1615},
file = {Zachos et al. - 2005 - Rapid acidification of the ocean during the Paleoc.pdf:C\:\\Users\\rsrs\\Documents\\Zotero Database\\storage\\GMB57AS2\\Zachos et al. - 2005 - Rapid acidification of the ocean during the Paleoc.pdf:application/pdf}
}
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