Dark-toned disks in light-toned layers. These dark-toned disks could be the result of soft-sediment deformation, or recent craters, or inverted ancient/embedded craters.
Beautiful Mars series.
Dark-toned disks in light-toned layers. These dark-toned disks could be the result of soft-sediment deformation, or recent craters, or inverted ancient/embedded craters.
Beautiful Mars series.