Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 14, issue 5
Articles | Volume 14, issue 5
https://doi.org/10.5194/esurf-14-763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 5
Research article
 | 
05 Oct 2026
Research article |  | 05 Oct 2026

Long-term peat thickness from cosmogenic 26Al and 10Be, Hautes Fagnes, Belgian Ardennes

Angus Moore, Maud Henrion, Yanfei Li, Eléonore du Bois d'Aische, Philip Gautschi, Marcus Christl, François Jonard, Sébastien Lambot, Kristof Van Oost, Sophie Opfergelt, and Veerle Vanacker

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Short summary
Studying peatland dynamics over long timescales requires a proxy for past peat cover. In this paper, we explore using cosmogenic nuclides to infer peat thicknesses averaged over 100 kyr timescales. We find that long-term peat thicknesses inferred from cosmogenic nuclides at an upland peatland site in the Belgian Ardennes are consistent with independent constraints, but exceed modern peat thicknesses. We attribute this discrepancy to peat degradation associated with historical land use.
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