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Cosmic dust: Laboratory analyses of extremely small particlesA discussion of cosmic dust, its classification, the usefulness of its analysis, and problems associated with its analysis is presented. All measurements on stratospheric dust particles presented here were made with secondary ion mass spectrometry (SIMS). The SIMS technique turns out to be an extremely useful tool in the study of very small particles and made a number of firsts possible. The isotopic composition of cosmic dust particles were measured for the first time. It was also the first time that it was possible to measure the abundances of the rare earth elements in these particles. However, the most important advance this work represents is that both trace elemental and isotopic abundances were successfully measured in the same particles. Thus, for the first time, it is possible to compare isotopic and trace element abundance data of the same cosmic dust particles.
Document ID
19910010700
Document Type
Conference Paper
Authors
Stadermann, Frank J. (Washington Univ. Saint Louis, MO, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Lunar and Planetary Inst., 22nd Lunar and Planetary Science Conference
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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