Jumbled Terrain in Ius Chasma
NASA/JPL/University of Arizona

Jumbled Terrain in Ius Chasma
ESP_023398_1725  Science Theme: Sedimentary/Layering Processes
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This HiRISE image shows a mixture of bright and dark units. The bright units have a mineral called sulfate (salty sulfuric acid) that on Earth typically forms in the presence of water as an evaporite.

The brighter sulfates appear jumbled and folded, sometimes with sharp edges, inside a darker matrix of material. Either the sulfates were deposited this way, such as from a landslide that mixed and messed them up inside the darker material, or the sulfate was disrupted after it was deposited, perhaps from tectonic activity that broke it apart and folded it.

Written by: Cathy Weitz   (21 September 2011)

This is a stereo pair with PSP_006652_1725.

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Acquisition date:24 July 2011 Local Mars time: 2:03 PM
Latitude (centered):-7.504° Longitude (East):279.692°
Range to target site:275.9 km (172.5 miles)Original image scale range:27.6 cm/pixel (with 1 x 1 binning) so objects ~83 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:15.9° Phase angle:46.6°
Solar incidence angle:31°, with the Sun about 59° above the horizon Solar longitude:333.5°, Northern Winter
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North azimuth:96° Sub-solar azimuth:356.2°
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North azimuth:270°Sub solar azimuth:171.2°

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For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. 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. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.