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Dissolution-precipitation-driven upward migration of a salt crust

Licsandru, Glad and Noiriel, Catherine and Duru, Paul and Geoffroy, Sandrine and Abou-Chakra, Ariane and Prat, Marc Dissolution-precipitation-driven upward migration of a salt crust. (2019) Physical Review E, 100 (3). 032802-1. ISSN 1539-3755

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Official URL: https://doi.org/10.1103/PhysRevE.100.032802


Salt crusts forming at the surface of a porous medium can dynamically evolve with crust displacements leading to the formations of domes and blisters or simply to the upward migration of the crust. However, the mechanisms explaining the displacements are unclear. It has been conjectured that they could be related to dissolution precipitation phenomena and/or to mechanical effects associated with the concept of crystallization pressure. We present a simple experiment where the crust upward migration is significant and can be entirely explained from the consideration of dissolution-precipitation phenomena. Equations governing the crust displacement are derived, leading to quite good agreement with the experimental results.

Item Type:Article
HAL Id:hal-02310671
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
French research institutions > Institut de Recherche pour le Développement - IRD (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:14 Nov 2019 11:33

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