Articles | Volume 11, issue 5
https://doi.org/10.5194/esurf-11-979-2023
https://doi.org/10.5194/esurf-11-979-2023
Research article
 | 
09 Oct 2023
Research article |  | 09 Oct 2023

Geotechnical controls on erodibility in fluvial impact erosion

Jens M. Turowski, Gunnar Pruß, Anne Voigtländer, Andreas Ludwig, Angela Landgraf, Florian Kober, and Audrey Bonnelye

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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.