ACTIVATION VOLUME OF SILICON DIFFUSION IN SAN-CARLOS OLIVINE

Authors
BEJINA F RATERRON P ZHANG J JAOUL O LIEBERMANN RC
Citation
F. Bejina et al., ACTIVATION VOLUME OF SILICON DIFFUSION IN SAN-CARLOS OLIVINE, Geophysical research letters, 24(21), 1997, pp. 2597-2600
Citations number
19
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Geophysical research letters → ACNP
ISSN journal
00948276
Volume
24
Issue
21
Year of publication
1997
Pages
2597 - 2600
Database
ISI
SICI code
0094-8276(1997)24:21<2597:AVOSDI>2.0.ZU;2-0
Abstract
The activation volume of silicon diffusion (Vsi) in olivine is reporte d for the first time. Specimens of San Carlos olivine single crystal w ere annealed at 1763 K and at pressures to 9 GPa in an uniaxial split- sphere apparatus. Si-30 was used as tracer and the diffusion profiles were analyzed using the resonant nuclear reaction Si-30(p,gamma). We o btain V-Si = (-1.9 +/- 2.4) x 10(-6) m(3)/mol with a more probable val ue close to zero.