The formation of sulfate, nitrate and perchlorate salts in the martian atmosphere

Smith, Megan L.; Zahnle, Kevin J.; Catling, David C.; Claire, Mark W.

doi:10.1016/j.icarus.2013.11.031

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The formation of sulfate, nitrate and perchlorate salts in the martian atmosphere

Author(s): Megan L. Smith , Mark W. Claire , David C. Catling , Kevin J. Zahnle

Publication date Created: March 2014

Publication date (Print): March 2014

Journal: Icarus

Publisher: Elsevier BV

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Global mineralogical and aqueous mars history derived from OMEGA/Mars Express data.

Jean-Pierre Bibring, Yves Langevin, John F Mustard … (2006)

Global mineralogical mapping of Mars by the Observatoire pour la Mineralogie, l'Eau, les Glaces et l'Activité (OMEGA) instrument on the European Space Agency's Mars Express spacecraft provides new information on Mars' geological and climatic history. Phyllosilicates formed by aqueous alteration very early in the planet's history (the "phyllocian" era) are found in the oldest terrains; sulfates were formed in a second era (the "theiikian" era) in an acidic environment. Beginning about 3.5 billion years ago, the last era (the "siderikian") is dominated by the formation of anhydrous ferric oxides in a slow superficial weathering, without liquid water playing a major role across the planet.