Flood-Emplaced Blocks in Holden Crater
NASA/JPL/University of Arizona

Flood-Emplaced Blocks in Holden Crater
ESP_019256_1530  Science Theme: Aeolian Processes
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This image shows blocks of bright, layered rock embedded in darker material that are thought to have been deposited by a giant flood that occurred when Uzboi Valles breached the rim of Holden Crater (Grant et al., 2008, Geology v. 36, p. 195-198).

The magnitude of this ancient flood is indicated by the large size of the blocks (up to 100 meters across). The blocks do not appear to have been moved very far by the flood, as they are not rounded.

Holden Crater is one of the four potential landing sites for the Mars Science Laboratory rover, to be launched in November 2011. The bright layered rock in this image probably contain a record of a wetter, warmer period early in Martian history, and are therefore a prime target for exploration.

Written by: Ken Herkenhoff   (20 October 2010)



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Acquisition date:04 September 2010 Local Mars time: 3:37 PM
Latitude (centered):-26.591° Longitude (East):325.219°
Range to target site:260.2 km (162.6 miles)Original image scale range:26.0 cm/pixel (with 1 x 1 binning) so objects ~78 cm across are resolved
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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.