Articles | Volume 14, issue 7
https://doi.org/10.5194/se-14-683-2023
https://doi.org/10.5194/se-14-683-2023
Research article
 | 
11 Jul 2023
Research article |  | 11 Jul 2023

The effect of temperature-dependent material properties on simple thermal models of subduction zones

Iris van Zelst, Cedric Thieulot, and Timothy J. Craig

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Cited articles

Abers, G., van Keken, P., and Hacker, B.: The cold and relatively dry nature of mantle forearcs in subduction zones, Nat. Geosci., 10, 333–337, 2017. a, b
Abers, G. A.: Hydrated subducted crust at 100–250 km depth, Earth Planet. Sc. Lett., 176, 323–330, 2000. a
Abers, G. A., van Keken, P. E., Kneller, E. A., Ferris, A., and Stachnik, J. C.: The thermal structure of subduction zones constrained by seismic imaging: Implications for slab dehydration and wedge flow, Earth Planet. Sc. Lett., 241, 387–397, 2006. a, b
Arcay, D.: Modelling the interplate domain in thermo-mechanical simulations of subduction: Critical effects of resolution and rheology, and consequences on wet mantle melting, Phys. Earth Planet. In., 269, 112–132, 2017. a
Beall, A., Fagereng, Å., Davies, J. H., Garel, F., and Davies, D. R.: Influence of subduction zone dynamics on interface shear stress and potential relationship with seismogenic behavior, Geochem. Geophy., Geosy., 22, e09267, https://doi.org/10.1029/2020GC009267, 2021. a
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Short summary
A common simplification in subduction zone models is the use of constant thermal parameters, while experiments have shown that they vary with temperature. We test various formulations of temperature-dependent thermal parameters and show that they change the thermal structure of the subducting slab. We recommend that modelling studies of the thermal structure of subduction zones take the temperature dependence of thermal parameters into account, especially when providing insights into seismicity.