Light-Toned Deposits in Noctis Labyrinthus
NASA/JPL-Caltech/UArizona
Light-Toned Deposits in Noctis Labyrinthus
ESP_014353_1685  Science Theme: Sedimentary/Layering Processes
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)
 
Acquisition date
18 August 2009

Local Mars time
14:22

Latitude (centered)
-11.178°

Longitude (East)
261.834°

Spacecraft altitude
253.2 km (157.3 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°

Phase angle
18.1°

Solar incidence angle
35°, with the Sun about 55° above the horizon

Solar longitude
323.6°, Northern Winter

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  355.8°
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RGB color
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IRB: infrared-red-blue
RGB: red-green-blue
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Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

USAGE POLICY
All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL-Caltech/UArizona

POSTSCRIPT
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.