PT  - JOURNAL ARTICLE
AU  - Mustard, J. F.
AU  - Poulet, F.
AU  - Gendrin, A.
AU  - Bibring, J.-P.
AU  - Langevin, Y.
AU  - Gondet, B.
AU  - Mangold, N.
AU  - Bellucci, G.
AU  - Altieri, F.
TI  - Olivine and Pyroxene Diversity in the Crust of Mars
AID  - 10.1126/science.1109098
DP  - 2005 Mar 11
TA  - Science
PG  - 1594--1597
VI  - 307
IP  - 5715
4099  - http://science.sciencemag.org/content/307/5715/1594.short
4100  - http://science.sciencemag.org/content/307/5715/1594.full
SO  - Science2005 Mar 11; 307
AB  - Datafromthe 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.