A Crater Exposing Diverse Compositions
NASA/JPL/University of Arizona
A Crater Exposing Diverse Compositions
ESP_030079_1550  Science Theme: Impact Processes
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This image covers a well-preserved (relatively young) impact crater about 5 kilometers (3 miles) wide. The enhanced-color sample shows that the north-facing slope (on the south side of the crater) has a blue-green color but the south-facing slope has a yellowish color.

The blue-green (infrared-shifted) colors indicate minerals like olivine and pyroxene, common in lava or subsurface intrusions of magma. The yellowish color is typical of hydrous alteration or dust. This crater likely exposed diverse lithologies (rock types) that were present before the crater formed.
Written by: Alfred McEwen (audio by Tre Gibbs)   (30 January 2013)

This is a stereo pair with ESP_030290_1550.

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Acquisition date:26 December 2012 Local Mars time:15:27
Latitude (centered):-24.591° Longitude (East):48.955°
Range to target site:255.5 km (159.7 miles)Original image scale range:51.1 cm/pixel (with 2 x 2 binning) so objects ~153 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:1.7° Phase angle:46.4°
Solar incidence angle:48°, with the Sun about 42° above the horizon Solar longitude:232.6°, Northern Autumn

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