The depressions in this image from NASA's Mars Odyssey likely formed due to both volcanic and tectonic forces. Tectonic forces likely account for some of the depressions, while collapse into lava tubes and lava flow erosion account for the remainder.

Context image for PIA13387
Context image

The depressions in this VIS image likely formed due to both volcanic and tectonic forces. Tectonic forces, like faulting, probably account for the formation of some of the depressions, while collapse into lava tubes and lava flow erosion probably account for the remainder.

Orbit Number: 38404 Latitude: 26.5643 Longitude: 249.254 Instrument: VIS Captured: 2010-08-11 12:42

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.

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