Articles | Volume 19, issue 2
https://doi.org/10.5194/bg-19-347-2022
https://doi.org/10.5194/bg-19-347-2022
Research article
 | 
24 Jan 2022
Research article |  | 24 Jan 2022

Dissolution of a submarine carbonate platform by a submerged lake of acidic seawater

Matthew P. Humphreys, Erik H. Meesters, Henk de Haas, Szabina Karancz, Louise Delaigue, Karel Bakker, Gerard Duineveld, Siham de Goeyse, Andreas F. Haas, Furu Mienis, Sharyn Ossebaar, and Fleur C. van Duyl

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A series of submarine sinkholes were recently discovered on Luymes Bank, part of Saba Bank, a carbonate platform in the Caribbean Netherlands. Here, we investigate the waters inside these sinkholes for the first time. One of the sinkholes contained a body of dense, low-oxygen and low-pH water, which we call the acid lake. We use measurements of seawater chemistry to work out what processes were responsible for forming the acid lake and discuss the consequences for the carbonate platform.
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