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