Articles | Volume 12, issue 4
https://doi.org/10.5194/cp-12-819-2016
https://doi.org/10.5194/cp-12-819-2016
Research article
 | 
06 Apr 2016
Research article |  | 06 Apr 2016

Revisiting carbonate chemistry controls on planktic foraminifera Mg /  Ca: implications for sea surface temperature and hydrology shifts over the Paleocene–Eocene Thermal Maximum and Eocene–Oligocene transition

David Evans, Bridget S. Wade, Michael Henehan, Jonathan Erez, and Wolfgang Müller

Viewed

Total article views: 4,895 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,783 1,682 430 4,895 358 183 219
  • HTML: 2,783
  • PDF: 1,682
  • XML: 430
  • Total: 4,895
  • Supplement: 358
  • BibTeX: 183
  • EndNote: 219
Views and downloads (calculated since 16 Jul 2015)
Cumulative views and downloads (calculated since 16 Jul 2015)

Cited

Saved (preprint)

Discussed (final revised paper)

Latest update: 13 Dec 2024
Download
Short summary
We show that seawater pH exerts a substantial control on planktic foraminifera Mg / Ca, a widely applied palaeothermometer. As a result, temperature reconstructions based on this proxy are likely inaccurate over climatic events associated with a significant change in pH. We examine the implications of our findings for hydrological and temperature shifts over the Paleocene-Eocene Thermal Maximum and for the degree of surface ocean precursor cooling before the Eocene-Oligocene transition.