<p>In this complex crater (about 44-kilometers in diameter), we see bedrock in several locations from different depths in the crust. The central uplift exposes large fragments of green-toned bedrock that possibly originated from several kilometers beneath the surface. 
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NASA/JPL/University of Arizona
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/71688597@N05">UAHiRISE (NASA)</a>
2019-01-25 15:11
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/uahirise-mars/46984284781/">Exposing the Rock in Impact Craters</a>