Abstract
In January 2006, the NASA Stardust spacecraft successively returned to Earth dust from comet 81P/Wild 2, captured in a low-density SiO2 aerogel. Samples of three collected pyroxene-rich particles have been investigated by transmission electron microscopy (TEM). They are coarse-grained Ca-poor pyroxenes with compositions and structures ranging from orthorhombic enstatite to monoclinic pigeonite.
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References
M. E. Zolensly et al, Science 314 (2006), p.1735.
H. Leroux et al., Meteoritics & Planet. Sci. (2008), in press.
We thank the French Space Agency CNES for their support. Keiko Nakamura Messenger is gratefully acknowledged for the preparation of the ultramicrotomed samples.
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Jacob, D., Stodolna, J., Leroux, H. (2008). TEM study of Comet Wild 2 pyroxene particles collected during the stardust mission. In: Richter, S., Schwedt, A. (eds) EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85226-1_412
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DOI: https://doi.org/10.1007/978-3-540-85226-1_412
Publisher Name: Springer, Berlin, Heidelberg
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