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Presolar Al-, Ca-, and Ti-rich oxide grains in
the Krymka meteorite.
Nittler L. R., Alexander C. M. O'D., Stadermann F. J.,
and Zinner E. K. (2005)
Lunar & Planet. Sci. XXXVI, Abstract #2200.
ABSTRACT
Although a large number of presolar
Al2O3 and
MgAl2O4 grains have now been studied,
only a handful of presolar hibonite
(CaAl12O19) grains and a single
presolar TiO2 grain have been previously
reported. We report the identification and detailed isotopic
characteristics of 46 presolar oxides from a new residue of
the Krymka unequilibrated ordinary chondrite (LL3.1),
including 15 Hibonites and 2 TiO2 grains.
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