Scarp in Aurorae Chaos
Scarp in Aurorae Chaos
ESP_023660_1710  Science Theme: Sedimentary/Layering Processes
Aurorae Chaos is a large irregular depression consisting of jumbled uplifted blocks, knobs, mounds and isolated mesas known as chaotic terrains.

These areas of chaos are the source regions for the catastrophic releases of ground water thought to have formed the outflow channels. Aurorae Chaos extends to Eos, Capris and Gangis Chasma to the south and east and to Simud and Tiu Vallis to the north as well as to other chaotic terrains west of Margaritifer Chaos.

Along the southeastern part of the image is a prominent scarp. The elevated region to the right is likely a remnant mesa of original terrain. The lower elevation region to the west and north are areas where ground water was likely released and forming conduits flowed out of the chaotic terrain towards Simud and Tiu Valles.

Written by: Ginny Gulick  (11 October 2011)
Acquisition date
14 August 2011

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
265.9 km (165.3 miles)

Original image scale range
53.2 cm/pixel (with 2 x 2 binning) so objects ~160 cm across are resolved

Map projected scale
50 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
33°, with the Sun about 57° above the horizon

Solar longitude
344.4°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  8.0°
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Black & white is 5 km across; enhanced color about 1 km
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NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.