Similarities between Yellowknife Bay and the Kimberley as seen from orbit
The image on the left shows the Yellowknife Bay area. The red arrow points to a scarp, the contact between lower Sheepbed mudstone and upper Gillespie sandstone. The blue arrow points to a scarp at the boundary between Gillespie and Glenelg units. A similar set of scarps appears at the Kimberley, shown on the right. At Yellowknife Bay, the Curiosity team determined that the scarps' retreat had recently exposed the Sheepbed mudstone. It is possible the same process is operating at the Kimberley. The purple arrow marks a scarp separating the lowermost striated unit and the middle bedded unit. The yellow arrow marks the contact between the middle bedded unit and the upper smooth hummocky material.