Articles | Volume 9, issue 2
Research article
26 Mar 2021
Research article |  | 26 Mar 2021

Particle size dynamics in abrading pebble populations

András A. Sipos, Gábor Domokos, and János Török

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Cross-cutting themes: Quantitative and statistical methods in Earth surface dynamics
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Cited articles

Ashcroft, W.: Beach pebbles explained, Nature, 346, 227, 1990. a
Attal, M. and Lavé, J.: Changes of bedload characteristics along the Marsyandi River (central Nepal): Implications for understanding hillslope sediment supply, sediment load evolution along fluvial networks, and denudation in active orogenic belts, in: Tectonics, Climate, and Landscape Evolution, Geological Society of America, Boulder, CO, 2006. a
Attal, M. and Lavé, J.: Pebble abrasion during fluvial transport: Experimental results and implications for the evolution of the sediment load along rivers, J. Geophys. Res.-Earth, 114, F04023,, 2009. a, b, c, d, e, f, g
Bertoni, D., Sarti, G., Grottoli, E., Ciavola, P., Pozzebon, A., Domokos, G., and Novák-Szabó, T.: Impressive abrasion rates of marked pebbles on a coarse-clastic beach within a 13-month timespan, Mar. Geol., 381, 175–180, 2016. a, b
Bird, E.: Lateral Grading of Beach Sediments: A Commentary, J. Coast. Res., 12, 774–785, 1996. a
Short summary
Abrasion of sedimentary particles is widely associated with mutual collisions. Utilizing results of individual, geometric abrasion theory and techniques adopted in statistical physics, a new model for predicting the collective mass evolution of large numbers of particles is introduced. Our model uncovers a startling fundamental feature of collective particle dynamics: collisional abrasion may either focus size distributions or it may act in the opposite direction by dispersing the distribution.