Colorful Sediments near Hellas Basin
NASA/JPL/University of Arizona

Colorful Sediments near Hellas Basin
ESP_032359_1525  Science Theme: Tectonic Processes
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Excellent exposures of light-toned layered deposits occur along the northern edge of Hellas Basin, like those visible in this enhanced color image.

Some of these layered sediments have hydration features in CRISM data, and the various colors visible in this image suggests several different compositions may be present throughout the strata. The sediments may have been emplaced by hydrothermal activity associated with the impact event that created Hellas Basin.

Alternatively, they could be younger deposits that formed within this region when a lake existed here. Studies of the deposits using several data sets could distinguish between these two origins and may result in additional hypotheses for their formation.

Written by: Cathy Weitz   (17 July 2013)

This is a stereo pair with ESP_032425_1525.



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Acquisition date:21 June 2013 Local Mars time: 2:08 PM
Latitude (centered):-27.273° Longitude (East):78.390°
Range to target site:278.8 km (174.3 miles)Original image scale range:55.8 cm/pixel (with 2 x 2 binning) so objects ~167 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:23.0° Phase angle:56.4°
Solar incidence angle:36°, with the Sun about 54° above the horizon Solar longitude:339.5°, Northern Winter
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North azimuth:96° Sub-solar azimuth:33.1°
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North azimuth:270°Sub solar azimuth:205.1°

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