Results 251 to 260 of about 102,298 (302)

Normal faults, normal friction?

Geology, 2001
Debate continues as to whether normal faults may be seismically active at very low dips (d , 308) in the upper continental crust. An updated compilation of dip estimates (n 5 25) has been prepared from focal mechanisms of shallow, intracontinental, normal-slip earthquakes (M .
COLLETTINI, CRISTIANO, Sibson, Richard H.   +1 more
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Friction and faulting editor's note

pure and applied geophysics, 1986
Combining the topics of rock friction and faulting in one volume is an expression of a certain optimism that information obtained on frictional properties, which comes primarily from relatively small laboratory samples, is relevant to slip on those faults of greatest interest to us, the relatively large ones found in the earth. Probably most workers in
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Dynamic faulting under rate-dependent friction

pure and applied geophysics, 1994
We discuss the effects of rate-dependent friction on the propagation of seismic rupture on active faults. Several physicists using Burridge and Knopoff's box and spring model of faulting have proposed that fault complexity may arise from the spontaneous development of a self-similar stress distribution on the fault plane.
Alain Cochard, Raúl Madariaga
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Dynamic Frictional Slip Along Rock Faults

Journal of Tribology, 2020
Abstract The dynamic behavior of rock faults reflects the response of the shape and composition of the fault to the applied loading and environmental conditions. The interaction between the fault properties and the loading system is controlled by multiple variables that act simultaneously to generate an inherently complex behavior ...
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Fault structure, frictional properties and mixed-mode fault slip behavior

Earth and Planetary Science Letters, 2011
Recent high-resolution GPS and seismological data reveal that tectonic faults exhibit complex, multi-modeslipbehavior including earthquakes, creep events, slow and silent earthquakes, low-frequency events and earthquake afterslip. The physical processes responsible for this range of behavior and the mechanisms that dictate faultslip rate or rupture ...
Cristiano Collettini, André Niemeijer, Cecilia Viti, Steven A. F. Smith, Chris Marone   +4 more
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Frictional behavior of large displacement experimental faults

Journal of Geophysical Research: Solid Earth, 1996
The coefficient of friction and velocity dependence of friction of initially bare surfaces and 1‐mm‐thick simulated fault gouges (<90 μm) of Westerly granite were determined as a function of displacement to >400 mm at 25°C and 25 MPa normal stress. Steady state negative friction velocity dependence and a steady state fault zone microstructure are
N. M. Beeler, T. E. Tullis, M. L. Blanpied, J. D. Weeks   +3 more
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Sliding Friction and Overthrust Faulting

The Journal of Geology, 1965
The puzzle of tectonic sliding is illustrated by means of the Roberts Mountains overthrust in north-central Nevada. A model of the thrust, consisting of a wedge-shaped sheet gliding into a subsiding and migrating basin of deposition, is described, and calculations are made for the requisite coefficient of sliding friction assuming only normal pore ...
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Geotribology - Friction, wear, and lubrication of faults

Tectonophysics, 2018
Abstract We introduce here the concept of Geotribology as an approach to study friction, wear, and lubrication of geological systems. Methods of geotribology are applied here to characterize the friction and wear associated with slip along experimental faults composed of brittle rocks.
Yuval Boneh, Ze’ev Reches
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Fault-network geometry influences earthquake frictional behaviour

Nature
Understanding the factors governing the stability of fault slip is a crucial problem in fault mechanics1-3. The importance of fault geometry and roughness on fault-slip behaviour has been highlighted in recent lab experiments4-7 and numerical models8-11, and emerging evidence suggests that large-scale complexities in fault networks have a vital role in
Jaeseok Lee, Victor C. Tsai, Greg Hirth, Avigyan Chatterjee, Daniel T. Trugman   +4 more
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Fault healing and asperity partitioning on a frictionally heterogeneous laboratory fault

Journal of Geophysical Research: Solid Earth
Abstract Natural faults likely include both Velocity‐Weakening (VW) and Velocity‐Strengthening (VS) areas. We developed a laboratory method to replicate this frictional heterogeneity using a 760 mm long Polymethyl methacrylate (PMMA) block with 11 VW patches (bare PMMA) separated by VS barriers (Teflon tape).
Jun Young Song, Camilla Cattania, Gregory C. McLaskey   +2 more
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