Influence of initial CO2 content on a planet surface conditions at the end of the magma ocean phase

Abstract : The earliest compositional differentiation of the terrestrial planets, the formation of their outgassed atmospheres, and the existence of condensed water oceans over their solid mantles, are conditioned by magma ocean (MO) formation and solidification. Recent studies have suggested that depending on the planet initial water content and its orbital distance to the sun, two types of conditions, with (I) or without (II) water ocean, can prevail at the end of the MO phase. We use a coupled interior-atmosphere model of MO thermal evolution to go further and study systematically the influence of the planet initial CO2 content on the resulting surface conditions (temperature, volatiles, condensed water) at the end of the MO phase. The position of the boundary between the two regimes is shown to depend also on the initial CO2 content.
Document type :
Poster communications
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https://hal-insu.archives-ouvertes.fr/insu-01221929
Contributor : Catherine Cardon <>
Submitted on : Wednesday, October 28, 2015 - 8:26:25 PM
Last modification on : Monday, May 20, 2019 - 11:50:27 AM

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  • HAL Id : insu-01221929, version 1

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Arnaud Salvador, Hélène Massol, Anne Davaille, Emmanuel Marcq, Philippe Sarda, et al.. Influence of initial CO2 content on a planet surface conditions at the end of the magma ocean phase. European Planetary Science Congress 2015, Sep 2015, Nantes, France. European Planetary Science Congress 2015, 10, pp.EPSC2015-823, 2015. ⟨insu-01221929⟩

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