Sometime in the past couple of weeks, I recall dropping the comment, "Ares + Arenite = Arenology?" It's as good a title as any for this gorgeous image of linear dunes on eroded beds on Mars. Via Lee Allison at Arizona Geology, a special issue of Icarus contains 21 papers on Martian geomorphology. "The papers cover "Martian landforms shaped by winds, water, lava flow, seasonal icing and other forces."
P. Kyle House, PhD., Surficial Geologic Mapping Specialist / Geomorphologist