气候变化领域集成服务门户(CCPortal): Earthquake Cycles in Fault-Bend Folds

CCPortal

DOI	10.1029/2019JB018557
	Earthquake Cycles in Fault-Bend Folds
	Sathiakumar S.; Barbot S.; Hubbard J.
发表日期	2020
ISSN	21699313
卷号	125 期号:8
英文摘要	In fold-and-thrust belts and accretionary prisms, fault bends induce folding in the hanging wall that can alter the long-term loading rate on the megathrust and profoundly influence earthquake-related processes. To understand the impact of nonplanar faults and off-fault deformation on the seismic cycle, we incorporate fault-bend fold theory into fault dynamics and develop two-dimensional numerical simulations of slip evolution under a physics-based rate- and state-dependent friction law. Fault bends can play an important role in earthquake segmentation as a result of nonlinear fault dynamics, affecting the initiation and termination of earthquakes and the details of long-term interseismic behavior. Shallow earthquakes that initiate, propagate, and terminate near the surface are facilitated when the stratigraphy within incoming thrust sheets is not parallel to the underlying fault, as this can change the loading rate across the fault bend. ©2020. The Authors.
英文关键词	axial surfaces; earthquake cycles; earthquake segmentation; fault-bend folds; nonplanar faults; off-fault deformation
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187736
作者单位	Department of Earth Sciences, University of Southern California, Los Angeles, CA, United States; Asian School of Environment, NTU, Singapore
推荐引用方式 GB/T 7714	Sathiakumar S.,Barbot S.,Hubbard J.. Earthquake Cycles in Fault-Bend Folds[J],2020,125(8).
APA	Sathiakumar S.,Barbot S.,&Hubbard J..(2020).Earthquake Cycles in Fault-Bend Folds.Journal of Geophysical Research: Solid Earth,125(8).
MLA	Sathiakumar S.,et al."Earthquake Cycles in Fault-Bend Folds".Journal of Geophysical Research: Solid Earth 125.8(2020).