Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 14, issue 2
Articles | Volume 14, issue 2
https://doi.org/10.5194/esurf-14-191-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-191-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 2
Research article
 | 
16 Mar 2026
Research article |  | 16 Mar 2026

New experiments to probe the role of fractures in bedrock on river erosion rate and processes

Marion Fournereau, Laure Guerit, Philippe Steer, Jean-Jacques Kermarrec, Paul Leroy, Christophe Lanos, Hélène Hivert, Claire Astrié, and Dimitri Lague

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Short summary
River bedrock erosion can occur by abrasion and by the removal of entire blocks. We observe that when there is no or few fractures most erosion occurs by abrasion, whereas with more fractures, blocks can be removed at once leading to different patterns of erosion and riverbed morphology. Fractures affect barely mean erosion rate but change the location and occurrence of block removal. Our results highlight how river bedrock properties influence erosion processes and thus landscape evolution.
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