Academic Journal
Numerical modelling of opposing subduction in the Western Mediterranean
| العنوان: | Numerical modelling of opposing subduction in the Western Mediterranean |
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| المؤلفون: | Peral Millán, Mireia, Fernandez Ortiga, Manel, Vergés Masip, Jaume, Zlotnik, Sergio, Jimenez Munt, Ivone |
| المساهمون: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
| سنة النشر: | 2022 |
| المجموعة: | Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
| مصطلحات موضوعية: | Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències, Strength of materials, 3D numerical model, Double subduction, Geodynamic modelling, Alboran and Algerian basins, Resistència de materials, Classificació AMS::74 Mechanics of deformable solids::74S Numerical methods |
| الوصف: | © 2022 Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ ; The geodynamic evolution of the Western Mediterranean related to the closure of the Ligurian-Tethys ocean is not yet fully resolved. We present a new 3D numerical model of double subduction with opposite polarities fostered by the inherited segmentation of the Ligurian-Tethys margins and rifting system between Iberia and NW Africa. The model is constrained by plate kinematic reconstructions and assumes that both Alboran-Tethys and Algerian-Tethys plate segments are separated by a NW-SE transform zone enabling that subduction polarity changes from SE-dipping in the Alboran-Tethys segment to NW-dipping in the Algerian-Tethys segment. The model starts about late Eocene times at 36.5 Ma and the temporal evolution of the simulation is tied to the geological evolution by comparing the rates of convergence and trench retreat, and the onset and end of opening in the Alboran Basin. Curvature of the Alboran-Tethys slab is imposed by the pinning of its western edge when reaching the end of the transform zone in the adjacent west-Africa continental block. The progressive curvature of the trench explains the observed regional stress reorientation changing from N-S to NW-SE and to E-W in the central and western regions of the Alboran Basin. The increase of the retreat rates from the Alboran-Tethys to the Algerian-Tethys slabs is compatible with the west-to-east transition from continental-to-magmatic-to-oceanic crustal nature and with the massive and partially synchronous calc-alkaline and alkaline magmatism. ; We are indebted to Prof. Zheng-Xiang Li as Editor of Tectonophysics, and Prof. Sierd Cloetingh and an anonymous reviewer for their valuable suggestions and constructive comments which improved the previous version of the paper. We acknowledge discussions with Chiara Mac- chiavelli and Marc Viaplana during the development of this work. This work is funded by the SUBTETIS ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0040-1951 |
| Relation: | https://www.sciencedirect.com/science/article/pii/S0040195122001032; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113463RB-C32/ES/INGENIERIA COMPUTACIONAL BASADA EN SIMULACION DE APRENDIZAJE AUTOMATICO/; info:eu-repo/grantAgreement/EC/H2020/777778/EU/Multiscale Inversion of Porous Rock Physics using High-Performance Simulators: Bridging the Gap between Mathematics and Geophysics/MATHROCKS; Peral, M. [et al.]. Numerical modelling of opposing subduction in the Western Mediterranean. "Tectonophysics", 5 Maig 2022, vol. 830, p. 229309:1-229309:15.; http://hdl.handle.net/2117/366850 |
| DOI: | 10.1016/j.tecto.2022.229309 |
| الاتاحة: | http://hdl.handle.net/2117/366850 https://doi.org/10.1016/j.tecto.2022.229309 |
| Rights: | ©2022. Elsevier ; Attribution-NonCommercial-NoDerivatives 4.0 International ; https://creativecommons.org/licenses/by-nc-nd/4.0/ ; Open Access |
| رقم الانضمام: | edsbas.D99FECF |
| قاعدة البيانات: | BASE |
| تدمد: | 00401951 |
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| DOI: | 10.1016/j.tecto.2022.229309 |