Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars
نویسندگان
چکیده
[1] Spatial variability of methane (CH4) on Mars suggests the presence of localized subsurface sources. Here, we show that olivine hydration in the Martian regolith and crust may be a major CH4 source, which contributed significantly to the warming of early Mars. Methane production is kinetically and thermodynamically favored during low-T aqueous alteration of olivine-rich rocks. Sustained release of CH4 on present-day Mars may come through the breakdown of ancient CH4 hydrates and from springs driven by geothermal heat. Citation: Oze, C., and M. Sharma (2005), Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars, Geophys. Res. Lett., 32, L10203, doi:10.1029/2005GL022691.
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