2012
DOI: 10.1007/s11214-012-9942-9
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Volatile Trapping in Martian Clathrates

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Cited by 38 publications
(33 citation statements)
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“…Most of this activity would have occurred during Noachian and Hesperian times, but some residual activity could have been maintained until more recent epochs. A total amount of CH 4 equivalent to an atmospheric CO 2 pressure of 0.2-2 bar could have been cycled though the crust through carbonation-serpentinization-methane release, consistently with the present mixing ratio of CH 4 in the atmosphere [Chassefière and Leblanc, 2011b;Mousis et al, 2013].…”
Section: Discussionsupporting
confidence: 67%
See 1 more Smart Citation
“…Most of this activity would have occurred during Noachian and Hesperian times, but some residual activity could have been maintained until more recent epochs. A total amount of CH 4 equivalent to an atmospheric CO 2 pressure of 0.2-2 bar could have been cycled though the crust through carbonation-serpentinization-methane release, consistently with the present mixing ratio of CH 4 in the atmosphere [Chassefière and Leblanc, 2011b;Mousis et al, 2013].…”
Section: Discussionsupporting
confidence: 67%
“…Methane has been recently discovered in the Martian atmosphere at a typical 10 ppb level [Krasnopolsky et al, 2004;Formisano et al, 2004;Mumma et al, 2009;Fonti and Marzo, 2010]. It has been suggested that this methane is produced at depth by serpentinization in crustal hydrothermal systems, then incorporated to the cryosphere under the form of clathrates, and finally released to the atmosphere [Chassefière and Leblanc, 2011b;Mousis et al, 2013]. If so, methane may be considered as a link of a long-term carbon cycle.…”
Section: Discussionmentioning
confidence: 99%
“…Clathrate hydrates are also suspected to be extensively present on several planets, satellites and comets of the Solar System. Planetologists are thus concerned with the possible clathrate impact on the distribution of the planet's volatiles and on the modification of their atmosphere's compositions [10]. Hence, it is of great interest to correctly determine the amount of species potentially trapped in the cages of clathrates, i.e.…”
Section: Introductionmentioning
confidence: 99%
“…This work aims at providing a van't Hoff law expression [19] of the Langmuir constant for single guest molecules incorporated in clathrate hydrates as a function of the temperature by improving the potential model used in the determination of the Langmuir constants as discussed in reference [10], that is by using an atom-atom and site-site potential and by considering explicitly the effect of water molecules beyond the trapping cage and the resulting anisotropic environment. In the present work, the Langmuir constant is determined by taking into account all the external degrees of freedom of the guest molecules, i:e. the center of mass (c.m.)…”
Section: Introductionmentioning
confidence: 99%
“…Since these regions are interpreted as being among the oldest of the Martian surface (≈4 Ga old), a possible temporary storage reservoir has been invoked in the form of methane clathrate particles (Chastain & Chevrier 2007;Chassefière 2009). Since these clathrates are suggested to be present in the subsurface and at the base of the cryosphere, it A&A 581, A136 (2015) is possible that they could be transported to the surface, releasing methane due to some destabilization process related to the Martian seasonal cycle (Atreya et al 2011;Mousis et al 2013).…”
Section: Background and Motivationmentioning
confidence: 99%