Uplifted Jumble of Ancient Bedrock
NASA/JPL/University of Arizona
Uplifted Jumble of Ancient Bedrock
ESP_025296_1535  Science Theme: Geologic Contacts/Stratigraphy
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Impact craters larger than a certain size have complex forms, including central peaks or other structures that result from structural uplift of the target material. This provides a mechanism for exposing deep, ancient bedrock.

The enhanced-color subimage shows a great variety of colors and textures in the bedrock, where it is exposed from beneath a dark fine-grained mantle. The mantle is sometimes modified by the wind into dunes.

The bedrock here includes massive, layered, and broken-up (brecciated) areas. This crater is located in the volcanic plains between Argyre Planitia and Valles Marineris.

Written by: Alfred McEwen   (15 February 2012)

This is a stereo pair with ESP_025784_1535.

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Acquisition date:19 December 2011 Local Mars time:14:54
Latitude (centered):-26.311° Longitude (East):305.211°
Range to target site:255.8 km (159.9 miles)Original image scale range:25.6 cm/pixel (with 1 x 1 binning) so objects ~77 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:1.2° Phase angle:62.0°
Solar incidence angle:61°, with the Sun about 29° above the horizon Solar longitude:45.4°, Northern Spring

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