Articles | Volume 16, issue 2
Research article
25 Jan 2019
Research article |  | 25 Jan 2019

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

Erik Gustafsson, Mathilde Hagens, Xiaole Sun, Daniel C. Reed, Christoph Humborg, Caroline P. Slomp, and Bo G. Gustafsson


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Latest update: 27 Feb 2024

The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

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.
Final-revised paper