Earth Surface Dynamics
Earth Surface Dynamics
Earth Surface Dynamics
Articles | Volume 9, issue 4
Articles | Volume 9, issue 4
Earth Surf. Dynam., 9, 1073–1090, 2021
https://doi.org/10.5194/esurf-9-1073-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Surf. Dynam., 9, 1073–1090, 2021
https://doi.org/10.5194/esurf-9-1073-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 9, issue 4

Research article 27 Aug 2021

Research article | 27 Aug 2021

Sediment size on talus slopes correlates with fracture spacing on bedrock cliffs: implications for predicting initial sediment size distributions on hillslopes

Joseph P. Verdian et al.

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Latest update: 18 Jan 2022
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Short summary
River behavior depends on the size of rocks they carry. Rocks are born on hillslopes where erosion removes fragments from solid bedrock. To understand what controls the size of rock fragments, we measured the spacing between cracks exposed in 15 bare-rock cliffs and the size of rocks on the ground below. We found that, for each site, the average rock size could be predicted from the average distance between cracks, which varied with rock type. This shows how rock type can influence rivers.
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