Articles | Volume 16, issue 2
Biogeosciences, 16, 437–456, 2019
https://doi.org/10.5194/bg-16-437-2019

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Biogeosciences, 16, 437–456, 2019
https://doi.org/10.5194/bg-16-437-2019

Research article 25 Jan 2019

Research article | 25 Jan 2019

Sedimentary alkalinity generation and long-term alkalinity development in the Baltic Sea

Erik Gustafsson et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (18 Oct 2018) by Corinne Le Quere
AR by Erik Gustafsson on behalf of the Authors (06 Dec 2018)  Author's response    Manuscript
ED: Publish as is (27 Dec 2018) by Corinne Le Quere
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Short summary
This work highlights that iron (Fe) dynamics plays a key role in the release of alkalinity from sediments, as exemplified for the Baltic Sea. It furthermore demonstrates that burial of Fe sulfides should be included in alkalinity budgets of low-oxygen basins. The sedimentary alkalinity generation may undergo large changes depending on both organic matter loads and oxygen conditions. Enhanced release of alkalinity from the seafloor can increase the CO2 storage capacity of seawater.
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