Propagation of slip along frictional surfaces |
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| Authors: | Yoshiaki Ida |
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| Institution: | (1) Ocean Research Institute, University of Tokyo, Nakano, 164 Tokyo, Japan |
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| Abstract: | The propagation of slip along a pre-existing frictional plane is formulated for the faults containing interstitial fluid. When normal and shear stresses satisfy the effective frictional law, a frictional sliding occurs stably or unstably, depending on the inhomogeneities of the surface. For a slip to rapidly sweep the surface, the pore pressure of fluid must exceed the critical value that is related to the physical or geometrical irregularities of the surface. If this condition fails, stable sliding is expected, analogous to a seismic fault creep. This prediction makes the role of water in seismic faulting more clear. |
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| Keywords: | Faulting frictional Fault model Fault creep |
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