Diagenetic Processes in Sedimentary Rocks At Gale Crater, Mars, Using Chemcam, Curiosity Rover

We describe the chemistry of diagenetic features using the ChemCam instrument to understand the post-depositional history of aqueous sedimentary rocks at Gale crater. These new observations display the significant role played by groundwater circulation and diagenesis in the mobility and distribution of iron in the Vera Rubin Ridge, highlighted here by reducing fluids observed late in the sequence of diagenesis.