Results 221 to 230 of about 3,684 (262)

Earthquake instability on a strike‐slip fault

Journal of Geophysical Research: Solid Earth, 1979
A strain softening model for earthquake instability on a long, vertical, strike‐slip fault is analyzed using continuously distributed screw dislocations. The fault zone constitutive law is represented by a Gaussian‐shaped friction law in which slip softening occurs beyond the peak stress.
William D. Stuart, Gerald M. Mavko
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Sinuosity of strike-slip fault traces

Geology, 1975
A mechanical basis for the occurrence of curvature or sinuosity on strike-slip faults is postulated from finite-element simulation of an earthquake sequence on the Parkfield, California, segment of the San Andreas fault. Using discontinuity fields from measured displacements associated with the M ≅ 5.3 earthquakes of June 1966, motions along 16 km of ...
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A stochastic model for strike-slip faulting

Journal of the International Association for Mathematical Geology, 1980
The frequency of length of strike-slip faults in continental crust follows a lognormal probability distribution, and a nonlinear positive correlation exists between length and offset. These results appear to be scale-independent. An explanation of the observations is presented in terms of a stochastic model which treats the occurrence of faulting as a ...
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Sidewall ripouts in strike-slip faults

Journal of Structural Geology, 1989
Abstract Distinctive splay fault configurations in wallrocks associated with pseudotachylyte-bearing strike-slip fault structures at three different localities are recognized as ‘sidewall ripouts’. Sidewall ripout structures occur as asymmetric, doubly-tapered, fault-bounded lenses or slabs adjacent to a dominant planar fault surface.
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Mechanics of strike-slip faulting with friction

Journal of Geophysical Research, 1968
Strike-slip is analyzed for long, shallow surface faults of arbitrary dip on which motion is opposed by a frictional shear stress, which is assumed to increase linearly with depth. Static elastic analysis is used to find surface displacements and strains and to estimate the change in elastic potential energy, the frictional dissipation, and the ...
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Strike-Slip Faults of Northern Venezuela

AAPG Bulletin, 1956
ABSTRACT The Caribbean Mountains of northern Venezuela, and the area covered by the Caribbean Sea off the coast of Venezuela have been displaced to the east, relative to the land on the south, along a system of major strike-slip faults. From west to east this right-lateral fracture system consists of the following big faults: the Ocoa
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A Mechanical Model for Deformation and Earthquakes on Strike-Slip Faults

pure and applied geophysics, 1986
A two-dimensional model for stress accumulation and earthquake instability associated with strike-slip faults is considered. The model consists of an elastic lithosphere overlying a viscous asthenosphere, and a fault of finite width with an upper brittle zone having an elastoplastic response and a lower ductile zone having an elastoviscoplastic ...
B. Rowshandel, S. Nemat-Nasser
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Active strike-slip faulting in El Salvador, Central America

Geology, 2005
Several major earthquakes have affected El Salvador, Central America, during the Past 100 yr as a consequence of oblique subduction of the Cocos plate under the Caribbean plate, which is partitioned between trench-orthogonal compression and strike-slip defor- mation parallel to the volcanic arc.
CORTI G., CARMINATI, Eugenio Ambrogio Maria, MAZZARINI F., OZIEL GARCIA M.   +3 more
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Segmentation along Strike-Slip Faults Revisited

Pure and Applied Geophysics, 2009
Fault segmentation and fault steps and their evolution are relevant to the dynamics and size of earthquake ruptures, the distribution of fault damage zones and the capacity of fault seal. Furthermore, segment interactions and coalescence are the fundamental processes for fault growth.
Ghislain de Joussineau, Atilla Aydin
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Off-fault Deformation Associated with Strike-slip Faults

Environmental and Engineering Geoscience, 2018
AbstractHabitable buildings can be protected from surface fault rupture by establishing structure “setback zones” similar in purpose to legally mandated zones in California and Utah. But post-earthquake surveys of offset and warped linear cultural features, believed to have been straight prior to the event, demonstrate that potentially damaging ...
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