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An experimental study of Mg self-diffusion in spinel

Sheng, Y. J. and Hutcheon, I. D. and Wasserburg, G. J. (1991) An experimental study of Mg self-diffusion in spinel. Meteoritics, 26 (4). pp. 394-395. ISSN 0026-1114.

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Mg isotope heterogeneity, both between coexisting spinel and silicates and among spinels, is a prominent feature of Plagioclase-Olivine Inclusions (POIs) (1). The preservation of isotopic heterogeneity and relict spinel (Sp) in inclusions with igneous textures indicates that the thermal event which partially melted the precursor material either had too low a temperature or was too brief to allow Mg isotope homogenization between Sp and the melt. Since the temperature history required to homogenize Mg isotopes depends on the diffusion rate of Mg in Sp, we designed experiments using an isotope tracer method to determine this critical rate (2).

Item Type:Article
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Wasserburg, G. J.0000-0002-7957-8029
Additional Information:© 1991 Meteoritical Society.
Issue or Number:4
Record Number:CaltechAUTHORS:20140204-081155616
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43635
Deposited By: Tony Diaz
Deposited On:13 Feb 2014 22:21
Last Modified:09 Mar 2020 13:19

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