Articles | Volume 8, issue 1
Earth Surf. Dynam., 8, 51–67, 2020
https://doi.org/10.5194/esurf-8-51-2020
Earth Surf. Dynam., 8, 51–67, 2020
https://doi.org/10.5194/esurf-8-51-2020

Research article 28 Jan 2020

Research article | 28 Jan 2020

Stabilising large grains in self-forming steep channels

William H. Booker and Brett C. Eaton

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Cited articles

Ancey, C., Bigillon, F., Frey, P., Lanier, J., and Ducret, R.: Saltating Motion of a Bead in a Rapid Water Stream, Phys. Rev. E, 66, 036306, https://doi.org/10.1103/PhysRevE.66.036306, 2002. a
Andrews, E. D.: Entrainment of Gravel from Naturally Sorted Riverbed Material, Geol. Soc. Am. Bull., 94, 1225–1231, https://doi.org/10.1130/0016-7606(1983)94<1225:EOGFNS>2.0.CO;2, 1983. a, b
Andrews, E. D. and Parker, G.: Formation of a Coarse Surface Layer as the Response to Gravel Mobility, in: Sediment Transport in Gravel-Bed Rivers, edited by: Thorne, C., Bathurst, J., and Hey, R., Wiley, New York, 269–300, 1987. a
Ashmore, P. E.: Laboratory Modelling of Gravel Braided Stream Morphology, Earth Surf. Proc. Land., 7, 201–225, https://doi.org/10.1002/esp.3290070301, 1982. a
Ashmore, P. E.: How Do Gravel-Bed Rivers Braid?, Can. J. Earth Sci., 28, 326–341, https://doi.org/10.1139/e91-030, 1991. a, b
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Short summary
Using experiments, we found that the form and behaviour of a river depends on its ability to move the larger of its constituents. The manner in which all particles move depends upon the rate and calibre of the supplied material, as well as the rate of supplied water. This goes against the prevailing theory of a single important and representative grain size under depositing conditions, and these results may alter how we interpret river deposits to explain their formation.