Features and Mineralogy of Aram Chaos (extra-detail mgnf - MULTISPECTRUM; credits: Lunexit)

In this extra-detail mgnf, the lighter-toned area is a heavily fluted and pitted Capping Unit. This surface tends to trap dark sand in the lows.
The dark sand can also be seen to form dunes below the cliff.

Sulfates have been detected in the cliff walls in some areas within Aram Chaos, as well as Hematite. It has been suggested that these materials were deposited within a lake setting.