Articles | Volume 11, issue 5
https://doi.org/10.5194/esurf-11-979-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-11-979-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Oct 2023
Research article |
| 09 Oct 2023
| 09 Oct 2023
Geotechnical controls on erodibility in fluvial impact erosion
Jens M. Turowski
CORRESPONDING AUTHOR
Helmholtzzentrum Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
Gunnar Pruß
Helmholtzzentrum Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
Anne Voigtländer
Helmholtzzentrum Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
Andreas Ludwig
Nationale Genossenschaft für die Lagerung Radioaktiver Abfälle (NAGRA), 5430 Wettingen, Switzerland
Angela Landgraf
Nationale Genossenschaft für die Lagerung Radioaktiver Abfälle (NAGRA), 5430 Wettingen, Switzerland
Florian Kober
Nationale Genossenschaft für die Lagerung Radioaktiver Abfälle (NAGRA), 5430 Wettingen, Switzerland
Audrey Bonnelye
Helmholtzzentrum Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
Département Geosciences & Genie Civil, University of Lorraine, Nancy, France
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Short summary
Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which properties of the rock control its response to erosive action is poorly understood. Here, we describe parallel experiments to measure rock erosion rates under fluvial impact erosion and the rock's geotechnical properties such as fracture strength, elasticity, and density. Erosion rates vary over a factor of a million between different rock types. We use the data to improve current theory.
Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which...
