Articles | Volume 15, issue 5
https://doi.org/10.5194/se-15-567-2024
https://doi.org/10.5194/se-15-567-2024
Research article
 | 
07 May 2024
Research article |  | 07 May 2024

The influence of viscous slab rheology on numerical models of subduction

Natalie Hummel, Susanne Buiter, and Zoltán Erdős

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Cited articles

Androvičová, A., Ĉížkovǎ, H., and Van Den Berg, A.: The effects of rheological decoupling on slab deformation in the Earth’s upper mantle, Stud. Geophys. Geod., 57, 460–481, https://doi.org/10.1007/s11200-012-0259-7 2013. a
Arcay, D.: Dynamics of interplate domain in subduction zones: influence of rheological parameters and subducting plate age, Solid Earth, 3, 467–488, https://doi.org/10.5194/se-3-467-2012, 2012. a, b
Behr, W. M., Holt, A. F., Becker, T. W., and Faccenna, C.: The effects of plate interface rheology on subduction kinematics and dynamics, Geophys. J. Int., 230, 796–812, https://doi.org/10.1093/gji/ggac075, 2022. a, b
Biemiller, J., Ellis, S., Mizera, M., Little, T., Wallace, L., and Lavier, L.: Tectonic inheritance following failed continental subduction: A model for core complex formation in cold, strong lithosphere, Tectonics, 38, 1742–1763, https://doi.org/10.1029/2018TC005383, 2019. a
Billen, M. I.: Modeling the dynamics of subducting slabs, Annu. Rev. Earth Pl. Sc., 36, 325–356, https://doi.org/10.1146/annurev.earth.36.031207.124129, 2008. a, b, c, d
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Short summary
Simulations of subducting tectonic plates often use material properties extrapolated from the behavior of small rock samples in a laboratory to conditions found in the Earth. We explore several typical approaches to simulating these extrapolated material properties and show that they produce very rigid subducting plates with unrealistic dynamics. Our findings imply that subducting plates deform by additional mechanisms that are less commonly implemented in simulations.