Abstract
—In this paper, a finite element model for simulating long-term crustal deformation with large slipping along fault interface is developed, where a rate- and state-dependent frictional law is introduced to represent the faulting processes and frictional behaviors of fault interface. Moreover, viscous and plastic material properties are used to simulate pressure solution creep and cataclasis, respectively. Throughout the simulations on a structural model of fault-bend folds, the distributions of the stress invariants, equivalent viscous plastic strain, and the traction on the fault interface are investigated. The sequence of deformation mechanisms during movement over a ramp is discussed. It is also found that this kind of frictional model is suitable to represent the rate-dependent behavior of fault slipping due to the movement over a ramp and the tractions on fault interface for treating the low frictional problem of fault-bend folds.
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(Received February 20, 2001, revised June 22, 2001, accepted June 25, 2001)
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Wu, Z., Gao, Y. & Murakami, Y. Development of a Finite Element Simulator for Crustal Deformation with Large Fault Slipping. Pure appl. geophys. 159, 2221–2237 (2002). https://doi.org/10.1007/s00024-002-8732-9
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DOI: https://doi.org/10.1007/s00024-002-8732-9