Articles | Volume 18, issue 18
https://doi.org/10.5194/gmd-18-6219-2025
https://doi.org/10.5194/gmd-18-6219-2025
Methods for assessment of models
 | 
23 Sep 2025
Methods for assessment of models |  | 23 Sep 2025

Models of buoyancy-driven dykes using continuum plasticity or fracture mechanics: a comparison

Yuan Li, Timothy Davis, Adina E. Pusok, and Richard F. Katz

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Cited articles

Abbo, A. J. and Sloan, S. W.: A Smooth Hyperbolic Approximation to the Mohr–Coulomb Yield Criterion, Comput. Struct. 54, 427–441, https://doi.org/10.1016/0045-7949(94)00339-5, 1995. a
Abdullin, R., Melnik, O., Rust, A., Blundy, J., Lgotina, E., and Golovin, S.: Ascent of Volatile-Rich Felsic Magma in Dykes: A Numerical Model Applied to Deep-Sourced Porphyry Intrusions, Geophys. J. Int., 236, 1863–1876, https://doi.org/10.1093/gji/ggae027, 2024. a
Acocella, V., Ripepe, M., Rivalta, E., Peltier, A., Galetto, F., and Joseph, E.: Towards Scientific Forecasting of Magmatic Eruptions, Nat. Rev. Earth Environ. 5, 5–22, https://doi.org/10.1038/s43017-023-00492-z, 2024. a
Anderson, T. L.: Fracture Mechanics: Fundamentals and Applications, Fourth Edition, in: 4th Edn., CRC Press, Boca Raton, ISBN 978-1-315-37029-3, https://doi.org/10.1201/9781315370293, 2017. a, b, c
Bader, J., Zhu, W., Montési, L., Qi, C., Cordonnier, B., Kohlstedt, D., and Warren, J.: Effects of Stress-Driven Melt Segregation on Melt Orientation, Melt Connectivity and Anisotropic Permeability, J. Geophys. Res.-Solid, 129, e2023JB028065, https://doi.org/10.1029/2023JB028065, 2024. a, b
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Short summary
Magmatic dykes transport magma to the Earth's surface, sometimes causing eruptions. We advanced a model of dyking, treating it as plastic deformation in a porous medium, unlike the classic model that treats dykes as fractures in elastic solids. Comparing the two, we found the plastic model aligns with the fracture model in dyke speed and energy consumption, despite quantitative differences. This new method could be a powerful tool for understanding volcanic processes during tectonic activity.
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