Articles | Volume 17, issue 13
Biogeosciences, 17, 3487–3510, 2020
https://doi.org/10.5194/bg-17-3487-2020
Biogeosciences, 17, 3487–3510, 2020
https://doi.org/10.5194/bg-17-3487-2020

Research article 08 Jul 2020

Research article | 08 Jul 2020

Seawater pH reconstruction using boron isotopes in multiple planktonic foraminifera species with different depth habitats and their potential to constrain pH and pCO2 gradients

Maxence Guillermic et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (28 Oct 2019) by Markus Kienast
AR by Maxence Guillermic on behalf of the Authors (12 Nov 2019)  Author's response
ED: Referee Nomination & Report Request started (16 Nov 2019) by Markus Kienast
RR by Jesse Farmer (02 Dec 2019)
RR by Anonymous Referee #2 (02 Dec 2019)
RR by Michael Henehan (20 Dec 2019)
ED: Reconsider after major revisions (20 Jan 2020) by Markus Kienast
AR by Maxence Guillermic on behalf of the Authors (09 Mar 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (20 Mar 2020) by Markus Kienast
RR by Jesse Farmer (25 Mar 2020)
ED: Publish subject to minor revisions (review by editor) (06 Apr 2020) by Markus Kienast
AR by Maxence Guillermic on behalf of the Authors (28 Apr 2020)  Author's response    Manuscript
ED: Publish as is (15 May 2020) by Markus Kienast
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Short summary
Boron isotope ratios (δ11B) of foraminifera are a promising proxy for seawater pH and can be used to constrain pCO2. In this study, we derived calibrations for new foraminiferal taxa which extend the application of the boron isotope proxy. We discuss the origin of different δ11B signatures in species and also discuss the potential of using multispecies δ11B analyses to constrain vertical pH and pCO2 gradients in ancient water columns to shed light on biogeochemical carbon cycling in the past.
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