Science · 2005 · 962 citations · 20 references
Natural SciencesEarth SciencesGeologyGeochemistryPlanetary GeologyPlanetary ScienceMartian GeologyPlanetary CompositionPlanetary GeochemistryPlanetary MineralogyPlanetary SurfacesSulfate MineralsMars GeochemistryMartian Layered DepositsMartian MineralogyMartian Surface CompositionMartian Surface GeologyMineralogical MappingSulfate GeochemistrySulfate Mineral Geochemistry
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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High spectral resolution reflectance spectroscopy of minerals
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