Articles | Volume 2
https://doi.org/10.5194/sand-2-147-2023
https://doi.org/10.5194/sand-2-147-2023
Conference Abstract
 | 
06 Sep 2023
Conference Abstract |  | 06 Sep 2023

Hydrogeochemical impact of Opalinus Clay system shown in migration lengths of uranium

Theresa Hennig and Michael Kühn

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Short summary
Migration of uranium in the potential host rock Opalinus Clay is used as an example to demonstrate the extent to which simulated migration lengths can vary for a million years, depending on the model concept and on the underlying data and parameters. To reduce the uncertainty in this context, the calcite carbonate ion and the hydrogeological system at a potential disposal site need to be known, whereas the quantity of clay minerals plays a subordinate role, as long as it is enough.