Geochemistry of the clay-bearing sedimentary rocks of Glen Torridon, Gale crater, Mars

Erwin Dehouck (1) , Agnès Cousin , Nicolas Mangold , Jens Frydenvang , Jérémie Lasue (2) , Pierre-Yves Meslin (2) , Olivier Gasnault (2) , Valerie Fox , Kristen Bennett , Sylvestre Maurice (2) , Roger Wiens (3)

1 LGL-TPE - Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement
2 IRAP - Institut de recherche en astrophysique et planétologie
3 LANL - Los Alamos National Laboratory

We present the findings of the ChemCam instrument of the Curiosity rover in the clay-bearing terrains of Glen Torridon, Gale crater, Mars. We show that two compositionally-distinct types of bedrock (Mg-rich and K-rich) are present, and that both bear strong geochemical signatures of open-system alteration.

Domaines: Planétologie

Erwin Dehouck, Agnès Cousin, Nicolas Mangold, Jens Frydenvang, Jérémie Lasue, et al.. Geochemistry of the clay-bearing sedimentary rocks of Glen Torridon, Gale crater, Mars. European Planetary Science Congress, Sep 2019, Geneva, Switzerland. ⟨hal-02411314⟩