NASA MRO Image: Light-Toned and Possible Hydrated Materials in Gullied Crater

This observation shows a gullied crater in the Southern mid-latitudes with light-toned deposits near the center of its floor, and two areas of collapsed terrain at the northern and southern edges of the crater floor.

Data from the CRISM instrument–also onboard the Mars Reconnaissance Orbiter–tentatively show a minerals containing chemically-bound water in the “chaotic” areas. Larger Image. Credit: NASA/JPL/University of Arizona