| Titre | A community benchmark for subduction zone modeling |
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| Auteur | van Keken, P E; Currie, C; King, S D; Behn, M D; Cagnioncle, A; He, J; Katz, R F; Lin, S -C; Parmentier, E M; Spiegelman, M; Wang, K |
| Source | Physics of the Earth and Planetary Interiors vol. 171, 2008 p. 187-197, https://doi.org/10.1016/j.pepi.2008.04.015 |
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| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20070446 |
| Éditeur | Elsevier BV |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1016/j.pepi.2008.04.015 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | modèles tectoniques; interprétations tectoniques; subduction; zones de subduction; modèles de la croûte; modèles; établissement de modèles structuraux; établissement de modèles; vitesses de fluage;
mécanismes d'écoulement; analyses thermiques; pression; tectonique |
| Illustrations | coupes transversales; graphiques; tableaux |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 12 01 |
| Résumé | (disponible en anglais seulement)
We have developed a suite of benchmarks to facilitate the comparison of numerical models for the dynamics and thermal structure of subduction zones. The
benchmark cases are based on a thermomechanical approach in which the slab is prescribed kinematically and the wedge flow is computed dynamically. We propose various cases to investigate the influence of boundary conditions and rheology on wedge flow
and resulting thermal structure. A comparison between the codes suggest that accurate modeling of the thermal field requires a good implementation of the velocity discontinuity along the seismogenic zone and high resolution in the thermal boundary
layers. A minor modification to the boundary conditions of the wedge flow is also necessary to avoid a pressure singularity that exists in analytical solutions of the corner flow model. |
| GEOSCAN ID | 224568 |
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