MARS. Gullies are relatively common features in the steep slopes of crater walls, possibly formed by dry mass movement, movement of carbon dioxide frost, or perhaps the melting of ground ice. This example shows a section of crater wall from the rocky crater rim at the far left of the image, down to the dark dusty dunes on the crater floor in the bottom right. The rock of the crater walls shows up deep orange, and the sandy deposits on the crater floor and the base of the crater walls appear blue (not actual colour.) An optimised version of NASA imagery. Credit: NASA/JPL/UArizona

---

Size: 4500px × 3000px
Location: Solar System, Planet Mars
Photo credit: © NASA / digitaleye / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: barren, composition, crater, desert, deserted, detail, digitaleye, floor, geology, geomorphology, gullies, hirise, horizontal, landform, landscape, lifeless, mars, martian, mass, misc22_nasa213, mission, movement, nasa, planet, sand, terrain, tribaleye