title: Sulfates in Martian layered terrains: the OMEGA/Mars Express view.
abstract: The OMEGA/Mars Express hyperspectral imager identified hydrated sulfates on light-toned layered terrains on Mars. Outcrops in Valles Marineris, Margaritifer Sinus, and Terra Meridiani show evidence for kieserite, gypsum, and polyhydrated sulfates. This identification has its basis in vibrational absorptions between 1.3 and 2.5 micrometers. These minerals constitute direct records of the past aqueous activity on Mars.
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), Bâtiment 121, 91405 Orsay Campus, France. Aline_Gendrin@brown.edu
authors.forename: Aline
authors.initials: A
authors.lastname: Gendrin
authors.forename: Nicolas
authors.initials: N
authors.lastname: Mangold
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Bibring
authors.forename: Yves
authors.initials: Y
authors.lastname: Langevin
authors.forename: Brigitte
authors.initials: B
authors.lastname: Gondet
authors.forename: François
authors.initials: F
authors.lastname: Poulet
authors.forename: Guillaume
authors.initials: G
authors.lastname: Bonello
authors.forename: Cathy
authors.initials: C
authors.lastname: Quantin
authors.forename: John
authors.initials: J
authors.lastname: Mustard
authors.forename: Ray
authors.initials: R
authors.lastname: Arvidson
authors.forename: Stéphane
authors.initials: S
authors.lastname: LeMouélic
mesh_terms: D002133:Calcium Sulfate; D005118:Extraterrestrial Environment; D019015:Geologic Sediments; D018535:Mars; D008903:Minerals; D018531:Spacecraft; D013431:Sulfates; D013696:Temperature; D013995:Time; D014867:Water
chemical_list: D008903:Minerals; D013431:Sulfates; D014867:Water; D002133:Calcium Sulfate