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Earth, Planets and Space
Figure 2 | Earth, Planets and Space

Figure 2

From: Effect of stress state on slow rupture propagation in synthetic fault gouges

Figure 2

Shear stress versus time curves and plot of the coefficient of friction. (A) Shear stress versus time curves for each deformation experiment, leading up to a point just before the onset of unstable slip events. All experiments were run at a constant axial velocity of approximately 40 μm/s. (B) Plot of the coefficient of friction (μ) as a function of confining pressure (P c ). The values for the coefficient of friction displayed on this plot correspond to those recorded at the point in the experiments when maximum shear stress was achieved during shearing.

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