Biogeosciences
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Articles | Volume 22, issue 13
Articles | Volume 22, issue 13
https://doi.org/10.5194/bg-22-3357-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-3357-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 13
Research article
 | 
10 Jul 2025
Research article |  | 10 Jul 2025

Ancient clays support contemporary biogeochemical activity in the Critical Zone

Vanessa M. Alfonso, Peter M. Groffman, Zhongqi Cheng, and David E. Seidemann

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Latest update: 28 May 2026
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Short summary
Major questions in Critical Zone science center on the ability of ancient materials to support biogeochemical processes related to the cycling of carbon and nitrogen. This study sought to explore organomineral interactions by investigating the functional performance of clays through measurements of biogeochemical processes occurring on these materials.  Results indicate that ancient clays are contributing to contemporary Critical Zone biogeochemical processes at ecosystem and landscape scales. 
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