
The depressions in this image from NASA 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.
Most NASA images are in the public domain and free to use. Credit NASA as the source. Check NASA's media usage guidelines for details. Images featuring identifiable individuals may require additional permissions.
NASA ID
PIA13387
Date Created
September 15, 2010
Center
JPL
Media Type
image
Download this image in multiple resolutions. All NASA media are free for public use.
Medium
960px