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C-anomalous phases in QUE 99177 and MET
00426.
Floss C. and Stadermann F. J. (2008)
71st Meteoritical Society Meeting, Abstract #5008.
ABSTRACT
Carbon-rich phases (e.g., nanodiamonds, SiC, graphite)
were the first forms of stardust identified in primitive
meteorites and, with the exception of nanodiamonds, are
usually present in concentrations of <10- 20 ppm. We have
been investigating the stardust inventories of two primitive
CR chondrites, QUE 99177 and MET 00426, which have very high
abundances of O-anomalous presolar grains. Here we report on
the C-bearing presolar phases found in these two
meteorites.
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