Large dark dunes in Moreux Crater, Mars: Insights into their geometry and composition. M. Cardinale1, J. Flahaut2, G. Komatsu1, (1) International Research School of Planetary Sciences, Università D'Annunzio, Viale Pindaro 42, 65127 Pescara, Italy. (2) Laboratoire de Géologie de Lyon, ENS Lyon/UCBL, UMR 5276 du CNRS, 696222 Villeurbanne Cedex, France. cardinal@irsps.unich.it