Valence of Titanium in Ca-Al-Rich Inclusions: Experimental Samples and Relevance to Natural CAIs

Creators: Paque, J. M.; Sutton, S. R.; Simon, S. B.; Beckett, J. R.; Burnett, D. S.; Grossman, L.

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Abstract

Previous X-ray Absorption Near Edge Structure (XANES) Spectroscopy studies on spinels (sp) from Allende TS-34 [1, 2] have shown them to contain little Ti^(3+), relative to Ti^(4+), in spite of being hosted by Ti^(3+)-enriched clinopyroxene (cpx). This suggests that the spinels are products of a more oxidizing environment.

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