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Sulfates in Martian layered terrains: the OMEGA/Mars Express view |
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| Authors: | Gendrin Aline Mangold Nicolas Bibring Jean-Pierre Langevin Yves Gondet Brigitte Poulet François Bonello Guillaume Quantin Cathy Mustard John Arvidson Ray LeMouélic Stéphane |
| Institution: | Institut d'Astrophysique Spatiale (IAS), Batiment 121, 91405 Orsay Campus, France. Aline_Gendrin@brown.edu |
| 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. |
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