Large Fresh Crater Near Marte Vallis
NASA/JPL/University of Arizona

Large Fresh Crater Near Marte Vallis
PSP_005917_2020  Science Theme: Impact Processes



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This image is cited in a February 2009 paper, “Discovery of Columnar Jointing on Mars.”

Abstract

We report on the discovery of columnar jointing in Marte Valles, Mars. These columnar lavas were discovered in the wall of a pristine, 16-km-diameter impact crater and exhibit the features of terrestrial columnar basalts. There are discontinuous outcrops along the entire crater wall, suggesting that the columnar rocks covered a surface area of at least 200 sq. km, assuming that the rocks obliterated
by the impact event were similarly jointed. We also see columns in the walls of other fresh craters in the nearby volcanic plains of Elysium Planitia–Amazonis Planitia, which include Marte Vallis, and in a well-preserved crater in northeast Hellas.

Full article in Geology

Other HiRISE team papers are available here.(11 February 2009)



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Acquisition date:31 October 2007 Local Mars time: 2:09 PM
Latitude (centered):21.517° Longitude (East):184.346°
Range to target site:286.8 km (179.3 miles)Original image scale range:28.7 cm/pixel (with 1 x 1 binning) so objects ~86 cm across are resolved
Map projected scale:25 cm/pixel and North is upMap projection:Equirectangular
Emission angle:0.2° Phase angle:43.9°
Solar incidence angle:44°, with the Sun about 46° above the horizon Solar longitude:339.8°, Northern Winter
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North azimuth:97° Sub-solar azimuth:325.5°
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North azimuth:270°Sub solar azimuth:140.4°

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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.