Nature and Tectonic Significance of Fault Zone Weakening
نویسندگان
چکیده
منابع مشابه
Investigation of active tectonic evidence and characteristics of Kushk fault zone and vulnerability of rural settlements, Qazvin province
In this paper, the activity of Kushk fault has been investigated through field observations of landslides related to the activity of Kushk fault and other evidences of its activity and the location of rural settlements in the study area of Kushk fault has been analyzed. The study area is located in Qazvin province and in the Alborz structural zone and along the Kushk fault between the coordin...
متن کاملDynamic Fault Weakening and Strengthening by Gouge Compaction and Dilatancy in a Fluid-Saturated Fault Zone
Triaxial experiments show that samples of fault gouge deform distinctly differently than those from the adjacent fault damage zone (e.g., Chester and Logan, 1986). Rock samples in the damage zone follow a characteristic elastic-brittle behavior, whereas fault gouge readily compacts and deforms in a more ductile manner. In order to explain the apparent weakness of large plate bounding faults suc...
متن کاملShear heating of a fluid-saturated slip-weakening dilatant fault zone 1. Limiting regimes
[1] The one-dimensional model of Rudnicki and Chen [1988] for a slip-weakening dilating fault is extended to include shear heating. Because inertia is not included, instability (a seismic event) corresponds to an unbounded slip rate. Shear heating tends to increase pore pressure and decrease the effective compressive stress and the resistance to slip and consequently tends to promote instabilit...
متن کاملShear heating of a fluid-saturated slip-weakening dilatant fault zone: 2. Quasi-drained regime
[1] This paper analyzes slip on a fluid-infiltrated dilatant fault for imposed (tectonic) strain rates much slower than the rate of fluid exchange between the gouge zone and the surroundings and for exchange of heat slower than of fluid, typical of interseismic or most laboratory loading conditions. The limiting solution, corresponding to the infinitely rapid drainage rate, developed in the com...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2002
ISSN: 0096-3941
DOI: 10.1029/2002eo000254