Lycus Sulci Dust Avalanches

Dust avalanches, also called slope streaks, occur on many Martian terrains. The deposition of airborne dust on surfaces causes a bright tone in the THEMIS VIS images. Any movement of the dust downhill, a dust avalanche, will leave behind a streak where the darker, dust-free surface is exposed.These dust avalanches occur on the slopes of Lycus Sulci near Olympus Mons.