Wrinkle Ridge in Solis Planum
NASA/JPL/University of Arizona

Wrinkle Ridge in Solis Planum
PSP_006573_1560  Science Theme: Tectonic Processes



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This observation shows a wrinkle ridge in Solis Planum, located in the Thaumasia region of Mars, a high-elevation volcanic plain located south of the Valles Marineris canyon system and east of the Tharsis volcanic complex. Solis Planum contains some of the most distinct and well studied arrays of wrinkle ridges on Mars.

Wrinkle ridges are long, winding topographic highs and are often characterized by a broad arch topped with a crenulated ridge. These features have been identified on many other planetary bodies such as the Moon, Mercury, and Venus. On Mars, they are many tens to hundreds of kilometers long, tens of kilometers wide, and have a relief of a few hundred meters. Wrinkle ridges are most commonly believed to form from horizontal compression or shortening of the crust due to faulting and are often located in volcanic plains. They commonly have asymmetrical cross sectional profiles and an offset in elevation on either side of the ridge. Large dunes are also visible bordering the wrinkle ridge.

The reddish colors seen in this image most likely indicate the presence of dust (or indurated dust) and the darker, bluish colors most likely indicate the presence of larger rocks and boulders on the wrinkle ridge.
Written by: Maria Banks   (17 February 2008)



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Acquisition date:21 December 2007 Local Mars time: 2:31 PM
Latitude (centered):-23.519° Longitude (East):278.739°
Range to target site:251.1 km (157.0 miles)Original image scale range:25.1 cm/pixel (with 1 x 1 binning) so objects ~75 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:0.2° Phase angle:45.2°
Solar incidence angle:45°, with the Sun about 45° above the horizon Solar longitude:5.9°, Northern Spring
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North azimuth:97° Sub-solar azimuth:35.5°
For map-projected products
North azimuth:270°Sub solar azimuth:209.4°

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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.