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NanoSIMS D/H imaging of isotopically primitive
interplanetary dust particles.
Floss C. and Stadermann F. J. (2005)
Lunar & Planet. Sci. XXXVI, Abstract #1423.
ABSTRACT
The presence of large and variable H and N isotopic
anomalies in interplanetary dust particles (IDPs) is
well-established and is generally attributed to the
preservation of interstellar materials within these
particles; recent studies have shown that IDPs also contain
organic matter with anomalous C isotopic compositions and
grains with highly anomalous O and/or C isotopic
compositions that are indicative of a circumstellar origin.
We have been carrying out a comprehensive isotopic (C, N, O)
imaging survey of IDPs in order to better understand the
origin and distribution of isotopic anomalies in these
particles. Here we report the results of a survey of the H
isotopic compositions of the same particles. We also report
the results of S and B isotopic measurements.
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