The role of water in the deformation of olivine single crystal
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Hydrothermal experiments have been carried out on single crystals of San Carlos olivine at 1100 degree C to 1300 degree C and 300- and 1500-MPa confining pressure with oxygen fuga city around specimen constrained at Fe/FeO buffer.
Crystals are treated 1300 degree C, 300-MPa intense pressure and 10-5 s-1 strain rate are factor of 1.5 to 2.5 are weaker than those treated in an anhydrous environment.
Micro structural investigations suggests that reduction in strength is for enhancement of rate of climb of dislocations in 'wet' experiments.
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