HiRISE | Faults and Folds in Western Candor Chasma (PSP_003540

NASA/JPL/University of Arizona

Faults and Folds in Western Candor Chasma
PSP_003540_1735 Science Theme: Tectonic Processes

This image shows various interesting structures along the floor of Candor Chasma, a major canyon of Valles Marineris.

The rocks along the floor of the chasma consist of multiple layers of light-toned material, possibly windblown or water-lain sediment. These layers have been shifted along faults and also folded, giving the layers an apparent wavy appearance as they are exposed at the surface through erosion.

Some waviness in the layers may also have formed as these sediments were laid down, for example, in dunes or large ripples. Detailed mapping of these faults and folds may help reveal the origin of these layered deposits and if water played any role in their formation.

Written by: Chris Okubo (10 October 2007)

This is a stereo pair with PSP_003474_1735.

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Acquisition date:	29 April 2007	Local Mars time:	3:33 PM
Latitude (centered):	-6.440 degrees	Longitude (East):	283.221 degrees
Range to target site:	263.6 km (164.7 miles)	Original image scale range:	26.4 cm/pixel (with 1 x 1 binning) so objects ~79 cm across are resolved
Map projected scale:	25 cm/pixel and North is up	Map projection:	EQUIRECTANGULAR
Emission angle:	7.3 degrees	Phase angle:	46.0 degrees
Solar incidence angle:	53 degrees, with the Sun about 37 degrees above the horizon	Solar longitude:	228.2 degrees, Northern Autumn
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North azimuth:	97 degrees	Sub-solar azimuth:	347.1 degrees
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North azimuth:	270 degrees	Sub solar azimuth:	161.7 degrees

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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.