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

@article{Oze2005HaveOW,
  title={Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars},
  author={C. Oze and Mukul Sharma},
  journal={Geophysical Research Letters},
  year={2005},
  volume={32}
}
[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… Expand

Figures and Tables from this paper

Geology of possible Martian methane source regions
Recent observations of methane on Mars suggest that spatially localized source regions are present. Here we discuss the surface morphology and mineralogy of these regions, focusing on features thatExpand
Differentiating biotic from abiotic methane genesis in hydrothermally active planetary surfaces
TLDR
This model kinetically model how the H2 to CH4 ratio may be used to assess the origin of CH4 in deep subsurface serpentinization systems on Earth and Mars and indicates that life is likely present and active. Expand
Geologic setting of serpentine deposits on Mars
Serpentine, recently discovered on Mars using Mars Reconnaissance Orbiter data, is uncommon but found in three geologic settings: (1) in melange terrains at the Claritas Rise and the Nili Fossae, (2)Expand
Interglacial clathrate destabilization on Mars: Possible contributing source of its atmospheric methane
The presence of methane has been recently detected in the martian atmosphere, suggesting a contemporary source such as volcanism or microbial activity. Here we show that methane may be released byExpand
Low temperature production and exhalation of methane from serpentinized rocks on Earth: A potential analog for methane production on Mars
We evaluate, based on terrestrial analogs, the potential flux, origin and isotopic signature of methane (CH_4) from serpentinized or serpentinizing rocks on Mars. The Tekirova ophiolites, in Turkey,Expand
Removal of water from Mars' hydrosphere by serpentinization
One of the most plausible mechanisms proposed so far to explain the presence of methane in Mars’ atmosphere is serpentinization of ultramafic rocks from crustal carbon [1]. This process, to beExpand
Methane clathrate hydrates as a potential source for martian atmospheric methane
Abstract Small amounts of methane have been detected in the atmosphere of Mars, though the actual sources of the gas remain unknown. Thermodynamic conditions on Mars suggest that gas clathrateExpand
Abiotic methane formation during experimental serpentinization of olivine
  • T. McCollom
  • Geology, Medicine
  • Proceedings of the National Academy of Sciences
  • 2016
TLDR
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. Expand
Martian zeolites as a source of atmospheric methane
Abstract The origin of the martian methane is still poorly understood. A plausible explanation is that methane could have been produced either by hydrothermal alteration of basaltic crust or byExpand
Seepage in Serpentinised Peridotites and on Mars
This book has mainly addressed the classical seepage of natural gas of biotic (microbial and thermogenic) origin in sedimentary rocks. It is also known that methane and other light hydrocarbons canExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 35 REFERENCES
Eutectic Brines on Mars: Origin and Possible Relation to Young Seepage Features
Abstract If the recently observed young gullies on Mars represent seeps or outflows of aqueous fluid, that fluid must be highly concentrated brine to be even moderately stable under current martianExpand
Discovery of Olivine in the Nili Fossae Region of Mars
We have detected a 30,000-square-kilometer area rich in olivine in the Nili Fossae region of Mars. Nili Fossae has been interpreted as a complex of grabens and fractures related to the formation ofExpand
H2-rich fluids from serpentinization: geochemical and biotic implications.
TLDR
The catalytic properties of FeNi3 allow complex organic compounds to form within serpentinite and, when mixed with atmospherically produced complex organic matter and waters that circulated through basalts, constitutes an attractive prebiotic substrate. Expand
Hydrocarbons in Hydrothermal Vent Fluids: The Role of Chromium-Bearing Catalysts
TLDR
Results suggest that the chromium component in ultramafic rocks could be an important factor for FTT synthesis during water-rock interaction in mid-ocean ridge hydrothermal systems, which could help to support microbial communities now recognized in the subsurface at deep-sea vents. Expand
Cold springs in permafrost on Earth and Mars
[1] Perennial springs located on west central Axel Heiberg Island in the Canadian High Arctic occur in a region with a mean annual air temperature of −15°C and flow through continuous permafrost 600Expand
Methane and carbon dioxide hydrates on Mars: Potential origins, distribution, detection, and implications for future in situ resource utilization
[1] There is high probability for the long-term crustal accumulation of methane and carbon dioxide on Mars. These gases can arise from a variety of processes, including deep biosphere activity andExpand
Reduction of CO2 during serpentinization of olivine at 300 °C and 500 bar
CO 2 reduction processes occurring during experimental serpentinization of olivine at 300 °C and 500 bar confirm that ultramafic rocks can play an important role in the generation of abiogenicExpand
Abiogenic methane formation and isotopic fractionation under hydrothermal conditions
TLDR
Isotopic fractionation by the catalyst resulted in delta(13)C values of the CH(4) formed that are as low as those typically observed for microbial methane, which suggests that abiogenic methane may be more widespread than previously thought. Expand
Present day serpentinization in New Caledonia, Oman and Yugoslavia
Abstract Geochemical evidence for modern low-temperature serpentinization has been found in three new localities. Apparently the low-temperature reactions are a common mode of formation of theExpand
Compositional controls on vent fluids from ultramafic-hosted hydrothermal systems at mid-ocean ridges: An experimental study at 400°C, 500 bars
Olivine (Fo89), orthopyroxene (En85), and clinopyroxene (Di89) were reacted, individually and in combinations, with NaCl-MgCl2 at 400°C, 500 bars to better assess alteration and mass transfer inExpand
...
1
2
3
4
...