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Dust in the Solar System and other Planetary Systems, Proceedings of the IA U Colloquium 181 held at the University of Kent, p. 400-404

DOI: 10.1016/s0964-2749(02)80373-0

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Microanalysis of cosmic dust - Prospects and challenges

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Data provided by SHERPA/RoMEO

Abstract

Our laboratory experiments have used a light gas gun to accelerate olivine mineral grains to 5.1 km/s prior to their impact upon, and capture within, aerogel (density 96 kg m(-3)). The composition and mineralogy of the trapped particles were investigated using the non-destructive techniques of raman spectroscopy and analytical scanning electron microscopy. The raman spectra obtained for an impacted olivine show wider peak width than those obtained from the analysis of a pristine grain, this may indicate that the particles do undergo a degree of alteration at the crystallographic scale during the impact event.