Finite element modelling of the geodynamic processes of the Central Andes subduction zone:A Reference Model

查看全文 作　　者：Chris [1]Salomon

机构地区：[1]Institute of Geosciences,General Geophysics and Structural Geology Group, Friedrich Schiller University

出　　处：《Geodesy and Geodynamics》索引2018年第9卷第3期,共6页

摘　　要：This paper presents preliminary results of three-dimensional thermo mechanical finite-element models of a parameter study to compute the current temperature and stress distribution in the subduction zone of the central Andes(16°S-26°S) up to a depth of 400 km, the bottom of the asthenosphere. For this purpose a simulation running over c. 50,000 years will be realized based on the geometry of a generic subduction zone and an elasto-viscoplastic Drucker-Prager rheology. The kinematic and thermal boundary conditions as well as the rheological parameters represent the current state of the study area.In future works the model will be refined using a systematic study of physical parameters in order to estimate the influence of the main parameters(e.g. viscosity, fault friction, velocity, shear heating) on the results of the reference model presented here. The reference model is kept as simple as possible to be able to estimate the influence of the parameters in future studies in the best possible way, whilst minimizing computational time. 关键词：地球动力学流变学研究方法运动学

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Finite element modelling of the geodynamic processes of the Central Andes subduction zone:A Reference Model

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