aram chaos

This image (acquired September 30, 2011) is located within Aram Chaos near the outlet to Ares Valles. Aram Chaos is a 1300 kilometer (approximately 800 miles) diameter depression from which enormous cataclysmic releases of ground water are thought to have exploded onto the surface of Mars. The water then flowed northwards across the southern highlands, helping to carve the approximately 2000 kilometer (1200 miles) long Ares Valles outflow channel system.

A variety of landforms, terrain units and dune fields are visible in this image. In this enhanced color subimage, this portion of Aram Chaos is seen to be composed of isolated hills and eroding mesas, surrounded by a mantle of dark-toned eroded material. A variety of dunes and light-toned units fill the lower elevations between upland terrains.

This is one of many regions where the HiRISE team is obtaining repeat imaging to study active dune field movements. The interplay between the dunes, eroded landforms and the various other light and dark-toned materials provides clues to the relative ages of the geologic processes and the nature of the materials.

credit: NASA/JPL/University of Arizona (imagery); Michael Eugene Adams (animation)

Aram Chaos es un Cráter de impacto de grandes proporciones del planeta Marte situado en el extremo de los Valles Marineris a 2.6° Norte y 21,5 Oeste con un diámetro de 277 kilómetros. Fue nombrado en 1976.

Varios procesos geológicos a lo largo de los siglos lo han reducido a una área circular de terreno Chaos. Distintas observaciones espectroscópicas desde la órbita indican la presencia de hematita, indicando la posibilidad de que hubiese un ambiente acuoso en el pasado.

Aram Chaos on Mars

The western region of this colour image (at top) is characterized by brighter material, which seems to be layered and could be the result of sedimentary deposition. Distinct layering, causing a terrace-like appearance, is also visible east of this brighter material and in the relatively flat region located in the northwest of the colour image. Some scientists believe that the numerous chaotic regions located in the eastern part of Valles Marineris were the source of water or ice thought to have created the valleys that extend into Chryse Planitia. These regions are particularly interesting because they may yield clues to the relationship between Valles Marineris, the chaotic terrain, the valleys and the Chryse basin.

Credits:ESA/DLR/FU Berlin (G. Neukum)