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Dark slope streaks are common on the ridges of Lycus Sulci. These markings are thought to be formed by the removal of the brighter dust when material is shed from the top of the ridge.

Orbit Number: 47504 Latitude: 18.5875 Longitude: 215.514 Instrument: VIS Captured: 2012-08-29 16:08

Please see the THEMIS Data Citation Note for details on crediting THEMIS images.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Science Mission Directorate, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.