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Visualizing the degradation of Endeavour From her simulations with the landscape evolution model MARSSIM, Hughes was able
to conclude that the morphology of Endeavour was likely produced during an initial
period of fluvial or water erosion in a semi-arid to arid (dry) environment. This was
followed by a drier period of erosion without water that was dominated by lower rates of
weathering, diffusion, and mass-wasting, also known as slope movement or mass
movement, and finally a period dominated by aeolian erosion and deposition that
continues to this day. Madison Hughes / Washington University St. Louis / MARSSIM