Journal ArticleDOI
A dislocation theory analysis of fault creep events
TLDR
In this article, an analysis of fault creep events based on models of propagating edge dislocations and propagating screw dislocation is described, and it is shown that the stresses involved in a creep event are of the order of 1 bar or less.Abstract:
An analysis of fault creep events based on models of propagating edge dislocations and propagating screw dislocations is described. From the displacement history of a creep event it is possible to calculate its stress history. The stresses involved in a creep event apparently are of the order of 1 bar or less. It is not possible to obtain a unique constitutive equation for fault gouge from the data of a creep event. Because of the sharp beginning of many creep events, however, the fault gouge that is involved in a creep event must exhibit an upper yield point effect. The ‘eventfulness’ of fault creep may be due to this yield point effect.read more
Citations
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Journal ArticleDOI
Laboratory-derived friction laws and their application to seismic faulting
TL;DR: In this article, a review of the relationship between friction and the properties of earthquake faults is presented, as well as an interpretation of the friction state variable, including its interpretation as a measure of average asperity contact time and porosity within granular fault gouge.
Journal ArticleDOI
On the mechanics of earthquake afterslip
TL;DR: In this article, the authors proposed a model for earthquake afterslip based on rate and state variable friction laws, which is attributed to the interaction of a velocity-weakening region at depth (within which earthquakes nucleate) with an upper region of velocity-strengthening frictional behavior.
Journal ArticleDOI
The Energy Balance and Deformation Mechanisms of Thrust Sheets
TL;DR: In this paper, a new theory for the initiation and growth of thrusts as ductile fractures is proposed based on a demonstration that thrust displacement is linearly related to thrust map length and that fold complexes at the ends of the thrusts are constant in size for a given metamorphic grade.
Journal ArticleDOI
Earthquake swarms driven by aseismic creep in the Salton Trough, California
TL;DR: In this article, a swarm of more than a thousand earthquakes between magnitudes 1 and 5.1 occurred at the Obsidian Buttes, near the southern San Andreas Fault, providing the best opportunity to assess the mechanisms driving seismic swarms along transform plate boundaries.
Book ChapterDOI
Applications of Rate- and State-Dependent Friction to Models of Fault-Slip and Earthquake Occurrence
TL;DR: In this paper, a rate and state-dependent constitutive formulation of earthquake nucleation is proposed to model the effects of stress changes on earthquake rates, including the onset of slip instabilities, earthquake afterslip, and aseismic creep events.
References
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Journal ArticleDOI
Errata: Milton Abramowitz and Irene A. Stegun, editors, Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, National Bureau of Standards, Applied Mathematics Series, No. 55, U.S. Government Printing Office, Washington, D.C., 1994, and all known reprints
K. S. Kölbig,F. Schäff +1 more
Journal ArticleDOI
CXL. Dislocations in thin plates
J.D. Eshelby,A.N. Stroh +1 more
TL;DR: In this paper, the authors show that the stress due to a screw dislocation passing normally through an infinite plate or a disc is largely confined to the neighbourhood of the dislocation line, in contrast to the case of a dislocation in an infinite medium.
Journal ArticleDOI
Creep on the San Andreas fault
TL;DR: Steinbrugge and Zacher as discussed by the authors showed that one side of a segment of the San Andreas fault is creeping relative to the other, and reported that the creep may have been going on at about the present rate for fifty or more years.
Journal ArticleDOI
Continuum distribution of dislocations on faults with finite friction
TL;DR: In this paper, an analysis is made of continuous distributions of infinitesimal dislocations on faults with finite friction and it is shown that dislocation produced by earthquakes commonly lie at depths that are shallower than the average depth of earthquake foci in continents.
Journal ArticleDOI
Kinematics of fault creep
C.-Y. King,R. D. Nason,D. Tocher +2 more
TL;DR: In this article, the authors analyzed the kinematics of the fault-creep process and found that the maximum slip velocity ranges from 0.1 to 10 p.m/s.