Articles | Volume 12, issue 4
Clim. Past, 12, 837–847, 2016
https://doi.org/10.5194/cp-12-837-2016

Special issue: Climatic and biotic events of the Paleogene

Clim. Past, 12, 837–847, 2016
https://doi.org/10.5194/cp-12-837-2016

Research article 07 Apr 2016

Research article | 07 Apr 2016

Constraints on ocean circulation at the Paleocene–Eocene Thermal Maximum from neodymium isotopes

April N. Abbott et al.

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Cited articles

Alexander, K., Meissner, K. J., and Bralower, T. J.: Sudden spreading of corrosive bottom water during the Palaeocene–Eocene Thermal Maximum, Nat. Geosci., 8, 458–462, 2015.
Bayon, G., German, C., Boella, R., Milton, J., Taylor, R., and Nesbitt, R.: An improved method for extracting marine sediment fractions and its application to Sr and Nd isotopic analysis, Geochim. Cosmochim. Ac., 187, 170–199, 2002.
Bayon, G., German, C. R., Burton, K. W., Nesbitt, R. W., and Rogers, N.: Sedimentary Fe-Mn oxyhydroxides as paleoceanographic archives and the role of Aeolian flux in regulating oceanic dissolved REE, Earth Planet. Sc. Lett., 224, 477–492, https://doi.org/10.1016/j.epsl.2004.05.033, 2004.
Bice, K. L. and Marotzke, J.: Could changing ocean circulation have destabilized methane hydrate at the Paleocene/Eocene boundary?,Paleoceanography, 17, 1018, https://doi.org/10.1029/2001pa000678, 2002.
Böhm, E., Lippold, J., Gutjahr, M., Frank, M., Blaser, P., Antz, B., Fohlmeister, J., Frank, N., Andersen, M. B., and Deininger, M.: Strong and deep Atlantic meridional overturning circulation during the last glacial cycle, Nature, 517, 73–76, https://doi.org/10.1038/nature14059, 2015.
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Short summary
The Paleocene-Eocene Thermal Maximum (PETM) was a brief period when the Earth was in an extreme greenhouse state. We use neodymium isotopes to suggest that during this time deep-ocean circulation was distinct in each basin (North and South Atlanic, Southern, Pacific) with little exchange between. Moreover, the Pacific data show the most variability, suggesting this was a critical region possibly involved in both PETM triggering and remediation.