Title
Effects of heterogeneous gouge segments on the slip behavior of experimental faults at dm scale
Author
Buijze, L.
Guo, Y.
Niemeijer, A.R.
Ma, S.
Spiers, C.J.
Publication year
2021
Abstract
Frictional heterogeneity within fault zones is one of the factors proposed to explain the spectrum of slow, intermediate, and fast slip behaviors exhibited by faults in nature. Numerical modeling shows how even a simplified model setup incorporating sliding on a velocity-weakening (VW) patch surrounded by velocity-strengthening (VS) material can reproduce a rich variety of slip behaviors resembling nature. However, experimental investigations of sliding on heterogeneous faults are few. In this study, the slip behavior of three, 347 mm long × 50 mm wide, heterogeneous experimental faults, constructed using diagonally sawcut PMMA forcing blocks, was investigated at low normal stresses (
Subject
Heterogeneous fault friction
Unstable sliding
Slow slip
Velocity-weakening asperity
Scaled experiments
Confined rupture
Geological Survey Netherlands
2015 Energy
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http://resolver.tudelft.nl/uuid:3c3d1c25-c0cb-40f7-936b-406b282e78a0
DOI
https://doi.org/10.1016/j.epsl.2020.116652
TNO identifier
946576
Publisher
Elsevier B.V.
ISSN
0012-821X
Source
Earth and Planetary Science Letters, 554 (554), 1-12
Document type
article