Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 12, issue 5
Articles | Volume 12, issue 5
https://doi.org/10.5194/esurf-12-1071-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-12-1071-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 5
Research article
 | 
20 Sep 2024
Research article |  | 20 Sep 2024

The impact of bedrock meander cutoffs on 50 kyr scale incision rates, San Juan River, Utah

Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley

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Latest update: 22 Feb 2025
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Short summary
The rates at which rivers erode their bed can be used to interpret the geologic history of a region. However, these rates depend significantly on the time window over which you measure. We use multiple dating methods to determine an incision rate for the San Juan River and compare it to regional rates with longer timescales. We demonstrate how specific geologic events, such as cutoffs of bedrock meander bends, are likely to preserve material we can date but also bias the rates we measure.
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