Le rapport isotopique de l'hydrogène dans le Système Solaire interne : A la recherche des sources physico-chimiques de l'eau planétaire

Abstract : Current dynamical models of Solar System formation and geochemical models agree on a likely chondritic origin for the terrestrial water. Indeed, primitive meteorites, called chondrites, have undergone an aqueous alteration process on their parent bodies. Moreover, these meteorites are one of the considered sources for the existence of water in lunar minerals. This thesis lies on hydrogen isotopic ratios and water contents measured using NanoSIMS in the carbonaceous chondrite Paris and lunar soils from the Apollo missions. Chondrules in Paris meteorite seem to have registered a water source distinct from the one of the parent body aqueous alteration. For the Moon, water retained in soils is majority formed by implantation of the solar wind hydrogen.
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Submitted on : Wednesday, February 18, 2015 - 2:18:17 PM
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  • HAL Id : tel-01118065, version 1

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Alice Stephant. Le rapport isotopique de l'hydrogène dans le Système Solaire interne : A la recherche des sources physico-chimiques de l'eau planétaire. Géochimie. Muséum National d'Histoire Naturelle, 2014. Français. ⟨tel-01118065⟩

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