Terra Cimmeria Crater

Today's VIS image shows a complex crater located in Terra Cimmeria, just north of Hesperia Planum. The floor of this unnamed crater has features indicating a substantial amount of crater fill material was deposited at some point after the formation of the crater. These materials have since been eroded into multiple different forms. There are valley and mesa forms in the bottom part of the crater in this image, with the valleys becoming more shallow and channel-like toward the northern part of the crater floor. It is thought that the formation of the valley and mesa formation (called chaos terrain) arises from the release of subsurface fluids.