A mechanistic model for river incision into bedrock by saltating bed load

  title={A mechanistic model for river incision into bedrock by saltating bed load},
  author={Leonard S. Sklar and William E. Dietrich},
  journal={Water Resources Research},
Abrasion by bed load is a ubiquitous and sometimes dominant erosional mechanism for fluvial incision into bedrock. Here we develop a model for bedrock abrasion by saltating bed load wherein the wear rate depends linearly on the flux of impact kinetic energy normal to the bed and on the fraction of the bed that is not armored by transient deposits of alluvium. We assume that the extent of alluvial bed cover depends on the ratio of coarse sediment supply to bed load transport capacity. Particle… 

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