Articles | Volume 20, issue 16
https://doi.org/10.5194/bg-20-3459-2023
https://doi.org/10.5194/bg-20-3459-2023
Research article
 | 
18 Aug 2023
Research article |  | 18 Aug 2023

Alkalinity generation from carbonate weathering in a silicate-dominated headwater catchment at Iskorasfjellet, northern Norway

Nele Lehmann, Hugues Lantuit, Michael Ernst Böttcher, Jens Hartmann, Antje Eulenburg, and Helmuth Thomas

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Alkalinity, DIC, δ13C-DIC, major and trace elements, and stable water isotopes data in water samples from a degrading permafrost landscape at subarctic Iskorasfjellet, northern Norway N. Lehmann, H. Lantuit, M. E. Böttcher, J. Hartmann, and H. Thomas https://doi.org/10.1594/PANGAEA.952905

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Short summary
Riverine alkalinity in the silicate-dominated headwater catchment at subarctic Iskorasfjellet, northern Norway, was almost entirely derived from weathering of minor carbonate occurrences in the riparian zone. The uphill catchment appeared limited by insufficient contact time of weathering agents and weatherable material. Further, alkalinity increased with decreasing permafrost extent. Thus, with climate change, alkalinity generation is expected to increase in this permafrost-degrading landscape.
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