Strange Patterns in Echus Chasma
NASA/JPL/University of Arizona
Strange Patterns in Echus Chasma
ESP_042835_1800  Science Theme: Volcanic Processes
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This image shows bright and dark patterns with curving boundaries, a good example of Mars art. What caused this appearance?

This region of Echus Chasma has been flooded by lava flows that produced rough and smooth surfaces. The rough areas then trap bright dust, creating the contrasts in brightness.

Written by: Alfred McEwen (audio: Tre Gibbs)  (9 December 2015)
 
Acquisition date
16 September 2015

Local Mars time
14:52

Latitude (centered)
0.078°

Longitude (East)
279.922°

Spacecraft altitude
266.7 km (165.8 miles)

Original image scale range
26.9 cm/pixel (with 1 x 1 binning) so objects ~81 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection
Equirectangular

Emission angle
7.3°

Phase angle
39.3°

Solar incidence angle
45°, with the Sun about 45° above the horizon

Solar longitude
42.2°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  29.6°
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All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

POSTSCRIPT
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. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.