Articles | Volume 9, issue 4
Earth Surf. Dynam., 9, 723–753, 2021
https://doi.org/10.5194/esurf-9-723-2021
Earth Surf. Dynam., 9, 723–753, 2021
https://doi.org/10.5194/esurf-9-723-2021

Research article 21 Jul 2021

Research article | 21 Jul 2021

Bedrock river erosion through dipping layered rocks: quantifying erodibility through kinematic wave speed

Nate A. Mitchell and Brian J. Yanites

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Cited articles

Ahmed, S., Bhattacharya, J. P., Garza, D. E., and Li, Y.: Facies Architecture and Stratigraphic Evolution of A River-Dominated Delta Front, Turonian Ferron Sandstone, Utah, U.S.A, J. Sediment. Res., 84, 97–121, https://doi.org/10.2110/jsr.2014.6, 2014. 
Allen, G. H., Barnes, J. B., Pavelsky, T. M., and Kirby, E.: Lithologic and tectonic controls on bedrock channel form at the northwest Himalayan front, J. Geophys. Res.-Earth, 118, 1806–1825, https://doi.org/10.1002/jgrf.20113, 2013. 
Armstrong, I. P., Yanites, B. J., Mitchell, N., DeLisle, C., and Douglas, B. J.: Quantifying Normal Fault Evolution from River Profile Analysis in the Northern Basin and Range Province, Southwest Montana, USA, 2021, Lithosphere, 2021, 7866219, https://doi.org/10.2113/2021/7866219, 2021. 
Beeson, H. W. and McCoy, S. W.: Geomorphic signatures of the transient fluvial response to tilting, Earth Surf. Dynam., 8, 123–159, https://doi.org/10.5194/esurf-8-123-2020, 2020. 
Bernard, T., Sinclair, H. D., Gailleton, B., Mudd, S. M., and Ford, M.: Lithological control on the post-orogenic topography and erosion history of the Pyrenees, Earth Planet. Sc. Lett., 518, 53–66, https://doi.org/10.1016/j.epsl.2019.04.034, 2019. 
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Short summary
A landscape's appearance reflects the properties of the underlying bedrock. For example, strong bedrock can lead to steep slopes. Recent work has shown, however, that in areas with mixed rock types the stronger bedrock can have lower slopes. In this study, we use numerical models of bedrock river erosion to show why this change in behavior occurs. We also present a new approach for estimating bedrock erodibility. This new approach can allow for new opportunities in the field of geomorphology.