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

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

doi:https://doi.org/10.5194/cp-12-819-2016

Articles | Volume 12, issue 4

https://doi.org/10.5194/cp-12-819-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Climatic and biotic events of the Paleogene

https://doi.org/10.5194/cp-12-819-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 4

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

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Final revised paper (published on 06 Apr 2016)
Supplement to the final revised paper
Preprint (discussion started on 16 Jul 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

SC C1100: 'comment', Ellen Thomas, 19 Jul 2015
- AC C1138: 'response to short comment by E Thomas', David Evans, 22 Jul 2015
EC C1118: 'invitation to reply', Appy Sluijs, 21 Jul 2015
RC C1460: 'Review - Evans and others...pH control on foraminifera Mg/Ca', Anonymous Referee #1, 24 Aug 2015
- RC C1466: 'Review - Evans and others...pH control on foraminifera Mg/Ca - correct version', Anonymous Referee #1, 25 Aug 2015
  - AC C1929: 'Response to reviewer 1', David Evans, 07 Oct 2015
RC C1810: 'Comments on CP-2015-91', Anonymous Referee #2, 27 Sep 2015
- AC C2456: 'Response to reviewer 2', David Evans, 23 Nov 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (19 Oct 2015) by Appy Sluijs

AR by David Evans on behalf of the Authors (18 Jan 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (25 Jan 2016) by Appy Sluijs

RR by James C. Zachos (16 Feb 2016)

RR by Anonymous Referee #2 (11 Mar 2016)

ED: Publish subject to technical corrections (21 Mar 2016) by Appy Sluijs

AR by David Evans on behalf of the Authors (24 Mar 2016) Author's response Manuscript

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.

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

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Interactive discussion

Peer-review completion

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