The slip day policy for COMP 322 is similar to that of COMP 321. All students will be given 3 slip days to use throughout the semester. When you use a slip day, you will receive up to 24 additional hours to complete the assignment. You may use these slip days in any way you see fit (3 days on one assignment, 1 day each on 3 assignments, etc.). If you use slip days, you must submit a README.txt ...

[1] For a wide range of conditions, earthquake nucleation zones on rateand statedependent faults that obey either of the popular state evolution laws expand as they accelerate. Under the ‘‘slip’’ evolution law, which experiments show to be the more relevant law for nucleation, this expansion takes the form of a unidirectional slip pulse. In numerical simulations these pulses often tend to appro...

A puzzling phenomenon of ice-stream flow is the stick–slip motion displayed by Whillans Ice Stream (WIS), West Antarctica. In this study we test the hypothesis that the WIS stick–slip motion has features similar to those of other known stick–slip systems, and thus might be of the same origin. To do so, we adapt a simple mechanical model widely used in seismology to study classic stick–slip beha...

Viscous Couette flow is derived for flow between two infinitely long concentric rotating cylinders with Navier slip on both. Its axisymmetric linear stability is studied within a regime that would be hydrodynamically stable according to Rayleigh’s criterion: opposing gradients of angular velocity and specific angular momentum, based on the rotation rates and radii of the cylinders. Stability co...

Purpose Three-dimensional (3D) time-of-flight (TOF) is commonly utilized for routine magnetic resonance angiography (MRA) studies of the neck; however there are temporal and spatial resolution limits that have been addressed with contrast-enhanced protocols. Due to the association of gadolinium based contrast media and nephrogenic systemic fibrosis (NSF) it has become increasingly important to ...

Recent stability studies using constitutive relations of the type found by Dieterich, Ruina. and others to describe frictional slip of rocks in the laboratory have provided a new explanation of the depth cutoff of shallow crustal earthquakes. The class of friction laws discussed has the property that the sliding stress depends on normal stress. temperature, slip rate, and slip history. For slid...

Abstract The 2011 Tohoku-Oki great earthquake increased the difficulty of evaluating long-term probability seismic activity along Japan Trench because unknown impact unprecedentedly large slip. In this study, “Miyagi-ken-Oki earthquakes”, an M > 7 sequence off Miyagi Prefecture, located at edge source area was simulated. We conducted numerical simulations generation cycles based on rate- and...

Observations of fold growth in fold-thrust belt settings show that brittle deformation can be localized or distributed. Localized shear is associated with frictional slip on primary faults, while distributed recognized the folding bulk medium. The interplay these processes clearly seen fault-bend folds, which are folds cored by a fault an abrupt change dip (e.g., ramp-décollement system). While...

A major goal in earthquake physics is to derive a constitutive framework for fault slip that captures the dependence of shear strength on rheology, sliding velocity, and pore-fluid pressure. In this study, we present H-MEC (Hydro-Mechanical Earthquake Cycles), newly-developed two-phase flow numerical — which couples solid rock deformation pervasive fluid simulate how crustal stress pressure evo...

[1] We study how enforcing self-consistency in the statistical properties of the preshear and postshear stress on a fault can be used to constrain fault constitutive behavior beyond that required to produce a desired spatial and temporal evolution of slip in a single event. We explore features of rupture dynamics that (1) lead to slip heterogeneity in earthquake ruptures and (2) maintain these ...