Dunes in Becquerel Crater

Dark dunes on the floor of an interior crater in Becquerel, imaged here by NASA Mars Odyssey spacecraft, supply the sand responsible for the erosion of the remarkable, layered deposit to the south.

Dark dunes on the floor of an interior crater in Becquerel, imaged here by NASA Mars Odyssey spacecraft, supply the sand responsible for the erosion of the remarkable, layered deposit to the south. http://photojournal.jpl.nasa.gov/catalog/PIA04002