Muriel Gerbault

CRCN IRD

Email : muriel.gerbaultDear bot, you won't get my mail address@and my domain...get.omp.eu

Tel :0561332653

Bureau :H139, OMP Belin

Status :permanent

Adresse professionnelle :

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CV / functions

• 2019: HDR (Habilitation à Diriger les Recherches).
• Academic Researcher at IRD (Institut de Recherche pour le Développement, CR)
   - Since 2015: GET, Toulouse, France.
   - 2008-2014: Geoazur, Sophia-Antipolis, France.
   - 2004-2008: Universidad de Chile, Santiago, Chile.
   - 2002-2004: LMTG, Toulouse, France.
• 2001-2002: Post-Doctoral fellowship at Vrije Universiteit, Amsterdamwith ISES program: thermo-mechanical modeling of continental convergence,
• 1999-2001: Post-Doctoral contract with IGNS (Institute of Geological and Nuclear Sciences),>SIGHT project, New Zealand:thermomechanical modeling of the Southern Alps.
• 1999: PhD at the Lab. Geophys. Tectonics, University of Montpellier II, France:Numerical models of localised deformation at the lithospheric scale.

Research

Last baby:

C’est la faille qui casse l’oeuf ou l’oeuf qui casse la faille ? de failles et volcans au sud Chili

I mainly use numerical methods to test how geodynamic scenarii can be explained with elasto-visco-plastic rheologies at crustal or lithospheric scales. Sometimes, this requires algorithmic implementation. Always, it requires data of some sort, structural geology, petrology, geophysics. I seek to compare modeled features of deformation to these data. I like to show the importance of a dynamic stress evolution as opposed to standard kinematic concepts.

Current projects :

Diapiric crustal exhumation and convection of partially molten orogenic crust, in 3D (Naxos case, Vanderhaeghe et al;, 2018); in collaboration with the Fluid Mechanics Institute in Toulouse (IMFT, with Thomas Bonometti) and the PHD of Aurélie Louis-Napoléon. We published a methodological paper on the validation of VOFs methods to model gravitational instabilities. Complementary contributions are in preparation (EGU 2021 presentation).

We are applying quantitative models to seismo-volcanic areas in Southern Chile, in main collaboration with Dominique Rémy (GET), José Cembrano from PUC (Santiago, Chile) and A. Tassara from UDEC (Concepcion, Chile) , cf. Novoa Lizama et al. (2019), Novoa et al. (under revision, EGU 2021 presentation).
A joint ECOS project with José Cembrano enables us to test several configurations of faults and magmatic reservoirs in their ability to trigger themselves mutually (seismic motion or volcanic eruption, Ruz et al., 2021): Actuality page here: C’est la faille qui casse l’oeuf ou l’oeuf qui casse la faille ? de failles et volcans au sud Chili

Publications

Main/Recent publications

– Gerbault, M., Hassani, R., Lizama, C. N., & Souche, A.. Three‐Dimensional Failure Patterns Around an Inflating Magmatic Chamber. Geochemistry, Geophysics, Geosystems, 2018.

– Vanderhaeghe, O., Kruckenberg, S. C., Gerbault, M., Martin, L., Duchêne, S., & Deloule, E. Crustal-scale convection and diapiric upwelling of a partially molten orogenic root (Naxos dome, Greece).Tectonophysics, 2018.

– Novoa, C., Remy, D., Gerbault, M., Baez, J. C., Tassara, A., Cordova, L., Cardona, J., Granger M., Bonvalot S., Delgado, F. Viscoelastic relaxation: A mechanism to explain the decennial large surface displacements at the Laguna del Maule silicic volcanic complex. Earth Planet. Sci. Lett., 2019.

– Louis-Napoléon, A., Gerbault, M., Bonometti, T., Thieulot, C., Martin, R., & Vanderhaeghe, O. 3-D numerical modelling of crustal polydiapirs with volume-of-fluid methods. Geophys. J. Int., 2020.

– Bauville, A., Furuichi, M., & Gerbault, M. Control of fault weakening on the structural styles of underthrusting‐dominated non‐cohesive accretionary wedges. J. Geophys. Res. 2020.

– Ruz Ginouves, J. R., Gerbault, M., Cembrano, J., Iturrieta, P., Leiva, F. S., Novoa, C., & Hassani, R. (2021). The interplay of a fault zone and a volcanic reservoir from 3D elasto-plastic models: Rheological conditions for mutual trigger based on a field case from the Andean Southern Volcanic Zone. Journal of Volcanology and Geothermal Research, 107317.

Muriel Gerbault

Rechercher