Articles | Volume 13, issue 2
Clim. Past, 13, 149–170, 2017
https://doi.org/10.5194/cp-13-149-2017
Clim. Past, 13, 149–170, 2017
https://doi.org/10.5194/cp-13-149-2017

Research article 24 Feb 2017

Research article | 24 Feb 2017

A record of Neogene seawater δ11B reconstructed from paired δ11B analyses on benthic and planktic foraminifera

Rosanna Greenop et al.

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Interactive discussion

Status: closed
Status: closed
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 (24 May 2016) by Appy Sluijs
AR by Rosanna Greenop on behalf of the Authors (06 Sep 2016)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 Sep 2016) by Appy Sluijs
RR by Anonymous Referee #1 (20 Oct 2016)
RR by Philip A.E. Pogge von Strandmann (18 Nov 2016)
ED: Publish subject to minor revisions (review by Editor) (18 Nov 2016) by Appy Sluijs
AR by Rosanna Greenop on behalf of the Authors (04 Dec 2016)  Author's response    Manuscript
ED: Publish subject to technical corrections (09 Jan 2017) by Appy Sluijs
AR by Rosanna Greenop on behalf of the Authors (17 Jan 2017)  Author's response    Manuscript
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Short summary
Understanding the boron isotopic composition of seawater (δ11Bsw) is key to calculating absolute estimates of CO2 using the boron isotope pH proxy. Here we use the boron isotope gradient, along with an estimate of pH gradient, between the surface and deep ocean to show that the δ11Bsw varies by ~ 2 ‰ over the past 23 million years. This new record has implications for both δ11Bsw and CO2 records and understanding changes in the ocean isotope composition of a number of ions through time.