Anoxic Atmospheres on Mars Driven by Volcanism: Implications for Past Environments and Life

Mars today has no active volcanism and its atmosphere is oxidizing, dominated by the photochemistry of CO2 and H2O. Using a one-dimensional photochemical model, we consider whether plausible volcanic gas fluxes could have switched the redox-state of the past martian atmosphere to reducing conditions...

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Veröffentlicht in:	arXiv.org 2021-03
Hauptverfasser:	Sholes, Steven F, Smith, Megan L, Claire, Mark W, Zahnle, Kevin J, Catling, David C
Format:	Artikel
Sprache:	eng
Schlagworte:	Amino acids Atmospheric models Extraterrestrial life Fluxes Fugacity Mars Mars atmosphere Mars environment Mars volcanoes Melts Moisture content Organic compounds Outgassing Oxidation Photochemistry Physics - Atmospheric and Oceanic Physics Physics - Earth and Planetary Astrophysics Physics - Geophysics Planetary geology Reducing atmospheres Sulfur Volcanic activity
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