Rates of grain boundary diffusion through enstatite and forsterite reaction rims

Rates of grain boundary diffusion through enstatite and forsterite reaction rims

The growth rates of enstatite and forsterite rims produced by reaction of Fo92 and SiO2 were determined at 250-1500 MPa and 900-1100 degrees Celsius for a wide range of water contents. Water enhances these grain boundary diffusion rates by a factor of 5-30, depending on the mineralogy.

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Bibliographische Detailangaben
Veröffentlicht in:Contributions to mineralogy and petrology 1997-01, Vol.126 (3), p.224-236
1. Verfasser: Yund, Richard A.
Format: Artikel
Sprache:eng
Schlagworte:
Geology
Kinetics
Mineralogy
Minerals
Petrology
Water
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Zusammenfassung:The growth rates of enstatite and forsterite rims produced by reaction of Fo92 and SiO2 were determined at 250-1500 MPa and 900-1100 degrees Celsius for a wide range of water contents. Water enhances these grain boundary diffusion rates by a factor of 5-30, depending on the mineralogy.
ISSN:0010-7999
1432-0967
DOI:10.1007/s004100050246