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A Flow Margin in Phlegra Dorsa
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A Flow Margin in Phlegra Dorsa

May 3, 2012
The Phlegra Dorsa region consists of ancient hills that have been surrounded and partially buried by flows from the Cerberus Fossae to the south. These flows could have been mud-laden water floods or very large lava flows.

The margin visible here is similar to that on lava flows that have had a long history of liquid lava being injected underneath the solidified crust. Relatively fresh impact craters and recent dust devil tracks are also visible in this image.

Written by: Laszlo Kestay

Credits: NASA/JPL/University of Arizona