Articles | Volume 5, issue 2
https://doi.org/10.5194/esurf-5-239-2017
https://doi.org/10.5194/esurf-5-239-2017
Research article
 | 
08 May 2017
Research article |  | 08 May 2017

Self-similar growth of a bimodal laboratory fan

Pauline Delorme, Vaughan Voller, Chris Paola, Olivier Devauchelle, Éric Lajeunesse, Laurie Barrier, and François Métivier

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Cited articles

Andreotti, B., Forterre, Y., and Pouliquen, O.: Les milieux granulaires, Entre fluide et solide, EDP Sciences, Collection Savoirs Actuels, Les Ulis, France, 2012.
Ashworth, P. J., Best, J. L., and Jones, M.: Relationship between sediment supply and avulsion frequency in braided rivers, Geology, 32, 21–24, 2004.
Blair, T. C.: Sedimentary processes, vertical stratification sequences, and geomorphology of the Roaring River alluvial fan, Rocky Mountain National Park, Colorado, J. Sediment. Res., 57, 1–18, 1987.
Blair, T. C. and McPherson, J. G.: Alluvial fans and their natural distinction from rivers based on morphology, hydraulic processes, sedimentary processes, and facies assemblages, J. Sediment. Res., 64, 450–489, 1994.
Blair, T. C. and McPherson, J. G.: Processes and forms of alluvial fans, in: Geomorphology of Desert Environments, Springer, Dordrech, the Netherlands, 413–467, 2009.
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Short summary
Alluvial fans are sedimentary deposits that take place at the outlet of mountain range. This location makes them the first sedimentary archive where sediments, eroded from mountains, are deposed. Their morphology is controlled by the water and sediment discharges and sediment characteristics. By using controlled laboratory experiments, we show that an alluvial fan composed of two distinct sediments has a characteristic shape; it can be decomposed into two fans made up of one sediment.