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Correlated Isotope Fractionation and Formation of Purple FUN Inclusions

Brigham, C. A. and Hutcheon, I. D. and Papanastassiou, D. A. and Wasserburg, G. J. (1988) Correlated Isotope Fractionation and Formation of Purple FUN Inclusions. Meteoritics, 23 . pp. 260-261. ISSN 0026-1114 . http://resolver.caltech.edu/CaltechAUTHORS:20140909-123651045

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Abstract

Allende coarse-grained inclusions characterized by a distinct purple color and high spinel contents (≤ 50 vol.%) exhibit a higher frequency of FUN isotopic anomalies (≈20%) than the general CAI population (≤6%). We used the ion microprobe to measure Mg, Si, Cr and Fe isotopic compositions of three Purple Spinel-rich Inclusions (PSI = ψ) which are petrographically similar to Type B CAl to investigate: 1) variations in isotopic fractionation within inclusions, including secondary phases; 2) correlated isotopic fractionation; and 3) excess ^(26)Mg.


Item Type:Article
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http://adsabs.harvard.edu/abs/1988Metic..23R.260BADSArticle
Additional Information:© 1988. Publication Date: 09/1988.
Record Number:CaltechAUTHORS:20140909-123651045
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140909-123651045
Official Citation:Correlated Isotope Fractionation and Formation of Purple FUN Inclusions Brigham, C. A.; Hutcheon, I. D.; Papanastassiou, D. A.; Wasserburg, G. J. Publication: Meteoritics, Vol. 23, p.260 Publication Date: 09/1988
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49498
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Sep 2014 20:07
Last Modified:10 Sep 2014 20:07

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