Fig.3: Cyclic deformation experiments on olivine samples at pressures of ~2.3 GPa and a temperature of 880 deg.C (IMAGE)

Ehime University

Fig.3: Cyclic deformation experiments on olivine samples at pressures of ~2.3 GPa and a temperature of 880 deg.C

Caption

Differential stress and strain increased during the deformation periods (white areas). Differential stress decreased when the deformation was halted (stress-relaxation periods: blue areas). Radiation of acoustic emissions (AEs) occurred during the deformation periods, though AEs ceased during the stress-relaxation periods. These results show the manifestation of the Kaiser effect. However, radiation of AEs proceeded at higher strains (> 0.2) even though the differential stress was below the maximum value (i.e., breakdown of the Kaiser effect).

Credit

Tomohiro Ohuchi, Ehime University

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