HiRISE | Light-Toned Deposits in Noctis Labyrinthus (ESP_014353

NASA/JPL/University of Arizona

Light-Toned Deposits in Noctis Labyrinthus
ESP_014353_1685 Science Theme: Sedimentary/Layering Processes

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CRISM observations of this region of the Noctis Labyrinthus formation have shown indications of iron-bearing sulfates and phyllosilicate (clay) minerals. (CRISM is another instrument on the Mars Reconnaissance Orbiter.)

HiRISE observations have revealed exposed layers which are possibly the sources of the signatures seen by CRISM. The layering, is visible in the lower part of the image. To the upper left one can see a dune field which covers other beds.

Written by: Nicolas Thomas (7 October 2009)

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Acquisition date:	18 August 2009	Local Mars time:	2:22 PM
Latitude (centered):	-11.178 degrees	Longitude (East):	261.834 degrees
Range to target site:	267.2 km (167.0 miles)	Original image scale range:	26.7 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved
Map projected scale:	25 cm/pixel and North is up	Map projection:	EQUIRECTANGULAR
Emission angle:	16.8 degrees	Phase angle:	18.1 degrees
Solar incidence angle:	35 degrees, with the Sun about 55 degrees above the horizon	Solar longitude:	323.6 degrees, Northern Winter
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North azimuth:	97 degrees	Sub-solar azimuth:	355.6 degrees
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North azimuth:	270 degrees	Sub solar azimuth:	170.4 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.