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The linear feature in this VIS image is part of Labeatis Fossae. Fossae are linear depressions, most often caused by extensional tectonic forces pulling the crust apart and allowing material to slide downward between bounding faults. This type of feature is called a graben. In this image, the feature as numerous circular features within the fossae. In regions of volcanic flows, the depression may be caused by roof collapse into an underlying void left by a lava tube. As this feature is located in the Tharsis volcanic region, it is likely that this feature was primarily created by volcanic collapse rather tectonic stress.

Orbit Number: 79516 Latitude: 21.1075 Longitude: 264.698 Instrument: VIS Captured: 2019-11-17 16:06

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.