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Article Dans Une Revue EPL - Europhysics Letters Année : 2022

Condensation-induced self-patterning of a thin clayey layer

Résumé

We show through laboratory experiments that the self-patterning of a thin clayey layer can be triggered by condensation. The natural sediment used in the experiments was a highly polydisperse granular paste with smectite clay in the fine fraction. Under certain physicochemical conditions, condensation induces the solid-to-liquid transition of the sediment layer, resulting in sediment flow and the formation of band structures. These results suggest a physical mechanism for the formation of patterns commonly observed on the humid walls of underground cavities, referred to as vermiculations.
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Dates et versions

hal-03672499 , version 1 (16-06-2022)

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Jérôme Martin, Frédéric Doumenc. Condensation-induced self-patterning of a thin clayey layer. EPL - Europhysics Letters, 2022, 138 (1), pp.13001. ⟨10.1209/0295-5075/ac5cdc⟩. ⟨hal-03672499⟩
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