Measuring the Shock Stage of Asteroid Regolith Grains by Electron Back-Scattered Diffraction
Lunar and Planetary Science Conference(2018)
Abstract
We have been analyzing Itokawa samples in order to definitively establish the degree of shock experienced by the regolith of asteroid Itokawa, and to devise a bridge between shock determinations by standard light optical petrography, crystal structures as determined by electron and X-ray diffraction. These techniques would then be available for samples returned from other asteroid regoliths.
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Key words
asteroid regolith grains,diffraction,shock stage,electron,back-scattered
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