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Re-evaluation of heat flow data near Parkfield, CA: Evidence for a weak San Andreas Fault

Creator:

Fulton, Patrick M., Saffer, Demian M., Harris, Robert N., and Bekins, Barbara A.

Abstract:

Improved interpretations of the strength of the San Andreas Fault near Parkfield, CA based on thermal data require quantification of processes causing significant scatter and uncertainty in existing heat flow data. These effects include topographic refraction, heat advection by topographically-driven groundwater flow, and uncertainty in thermal conductivity. Here, we re-evaluate...

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: Evidence for a weak San Andreas Fault Patrick M. Fulton,1 Demian M. Saffer,1 Robert N. Harris,2 and
Does hydrologic circulation mask frictional heat on faults after large earthquakes?

Creator:

Fulton, Patrick M., Harris, Robert N., Saffer, Demian M., and Brodsky, Emily E.

Abstract:

Knowledge of frictional resistance along faults is important for understanding the mechanics of earthquakes and faulting. The clearest in situ measure of fault friction potentially comes from temperature measurements in boreholes crossing fault zones within a few years of rupture. However, large temperature signals from frictional heating on faults have...

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algorithm SUTRA [Voss, 1984]. The governing equations, based on the Table 1. Definition of Symbols Symbol