Deposits of Sand: Ripples Versus Dunes - Dune Worlds: How Windblown Sand Shapes Planetary Landscapes - page 66

Fig. 5.24 Crossbedding on Mars. Opportunity mosaic of the Cape St. Vincent promontory on the edge of Victoria crater in Meridiani Planum,
showing impressive layers in aeolian sands. Image courtesy of Alexander Hayes

Fig. 5.25 A close-up of more layers in the walls of Victoria crater, this time at Cape St. Mary. Image courtesy of Alexander Hayes