Ion Irradiation of Olivine and Forsterite: Space Weathering Effects

Details Ion Irradiation of Olivine and Forsterite: Space Weathering Effects Ion Irradiation of Olivine and Forsterite: Space Weathering Effects

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.3001l&link_type=abstract

American Astronomical Society, DPS meeting #39, #30.01; Bulletin of the American Astronomical Society, Vol. 39, p.468

Astronomy and Astrophysics

Astronomy

Scientific paper

The solar wind, mainly consisting of hydrogen and helium ions, constantly bombards the surfaces of airless bodies. Previously, we have shown that these low energy ions can change the chemical composition of the surface of olivine rocks by reducing the iron oxide to metallic iron [Dukes et al. 1999]. However, corresponding in situ reflectance measurements were not performed and so these chemical changes were not correlated with changes in reflectance. We will present our new experiments, where we studied the effects that ion irradiation has on iron and non-iron bearing silicate powders using near infrared reflectance and x-ray photoelectron spectroscopy.

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