Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars

  title={Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars},
  author={Christopher Oze and Mukul Sharma},
  journal={Geophysical Research Letters},
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… 

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  • T. McCollom
  • Environmental Science
    Proceedings of the National Academy of Sciences
  • 2016
The results indicate that in situ abiotic synthesis of CH4 in low-temperature serpentinizing environments may be much more limited than some recent studies have suggested and that shallow serpentinization environments where a separate gas phase is present may be more favorable for abiotic synthesizing ofCH4.

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