Activation volume of silicon diffusion in San Carlos olivine

Autor:	Jianzhong Zhang, Robert C. Liebermann, F. Béjina, Paul Raterron, O. Jaoul
Rok vydání:	1997
Předmět:	Nuclear reaction Olivine Materials science Silicon Diffusion Analytical chemistry chemistry.chemical_element Mineralogy engineering.material Silicate chemistry.chemical_compound Geophysics chemistry Volume (thermodynamics) engineering General Earth and Planetary Sciences Single crystal
Zdroj:	Geophysical Research Letters. 24:2597-2600
ISSN:	0094-8276
DOI:	10.1029/97gl02735
Popis:	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)×10−6 m³/mol with a more probable value close to zero.
Databáze:	OpenAIRE
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