Ashwin Vasavada, the Curiosity Project Scientist of NASA’s Jet Propulsion Laboratory, told Universe Today via email:
†The Murray Buttes region of Mars is reminiscent of parts of the American southwest because of its butte and mesa landscape. In both areas, thick layers of sediment were deposited by wind and water, eventually resulting in a “layer cake†of bedrock that then began to erode away as conditions changed. In both places, more resistant sandstone layers cap the mesas and buttes because they protect the more easily eroded, fine-grained rock underneath.
“Like at Monument Valley near the Utah-Arizona border, at Murray Buttes there are just small remnants of these layers that once covered the surface more completely. There were wind-driven sand dunes at both places, too, that now appear as cross-bedded sandstone layers. There are of course many differences between Mars and the American Southwest. For example, there were large inland seas in the Southwest, while at Gale crater there were lakes.â€
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