Tractus Catena is a series of collapse pits and fractures south of Alba Mons as seen in this image from NASA 2001 Mars Odyssey spacecraft. The collapse pits, which run in two directions in this image, are typically indicative of volcanic lava tubes.
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Details
Title: Tractus Catena
Creator: NASA/JPL/ASU
Date Created: 2012-06-19
Rights: JPL
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