Activation volume of silicon diffusion in San Carlos olivine

Details Activation volume of silicon diffusion in San Carlos olivine Activation volume of silicon diffusion in San Carlos olivine

Nov 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.2597b&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 21, p. 2597-2600

Physics

5

Mineral Physics: Defects, Mineral Physics: High-Pressure Behavior, Physical Properties Of Rocks: Plasticity, Diffusion, And Creep, Physical Properties Of Rocks: Transport Properties

Scientific paper

The activation volume of silicon diffusion (VSi) in olivine is reported for the first time. Specimens of San Carlos olivine single crystal were annealed at 1763 K and at pressures to 9 GPa in an uniaxial split-sphere apparatus. 30Si was used as tracer and the diffusion profiles were analyzed using the resonant nuclear reaction 30Si(p,γ). We obtain VSi=(-1.9+/-2.4)×10-6m3/mol with a more probable value close to zero.

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