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Yardangs in Aeolis
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Yardangs in Aeolis

February 8, 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows yardangs, formed by wind erosion, and large ripples formed in wind by deposition of sediment. The sharp yardang ridges trend from northwest toward southeast (upper left to lower right), while the ripple crests are nearly perpendicular to this trend.