Olivine and Pyroxene Diversity in the Crust of Mars

Details Olivine and Pyroxene Diversity in the Crust of Mars Olivine and Pyroxene Diversity in the Crust of Mars

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sci...307.1594m&link_type=abstract

Science, Volume 307, Issue 5715, pp. 1594-1597 (2005).

Mathematics

Logic

144

Scientific paper

Data from the Observatoire pour la Minéralogie, l'Eau, les Glaces, et l'Activité (OMEGA) on the Mars Express spacecraft identify the distinct mafic, rock-forming minerals olivine, low-calcium pyroxene (LCP), and high-calcium pyroxene (HCP) on the surface of Mars. Olivine- and HCP-rich regions are found in deposits that span the age range of geologic units. However, LCP-rich regions are found only in the ancient Noachian-aged units, which suggests that melts for these deposits were derived from a mantle depleted in aluminum and calcium. Extended dark regions in the northern plains exhibit no evidence of strong mafic absorptions or absorptions due to hydrated materials.

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