The layered bedrock in this image was brought from several kilometers of depth during the formation of this 44 kilometer wide crater in the volcanic plains of Lunae Planum.
<p>As these layers were exhumed and brought to nearly vertical orientations, faulting and fracturing occurred and breccia dikes formed. Breccias are rocks consisting of angular and sharp fragments, and a dike is a fracture that has been widened by forces pulling apart the rock while simultaneously filling it with rocky materials. Breccia dikes are a common feature in terrestrial craters and can now be recognized in brilliant preservation on Mars.
</p><p>This <a rel="nofollow" class="external text" href="http://static.uahirise.org/images/2017/details/cut/ESP_017833_1975.jpg">high-resolution, false-color image cutout</a> above allows us to see a cross-cutting breccia dike near the bottom of the image.
</p><p>This is a stereo pair with <a rel="nofollow" class="external text" href="http://www.uahirise.org/ESP_017055_1975">ESP_017055_1975</a>.
</p>
The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace &amp; Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.
NASA/JPL-Caltech/Univ. of Arizona
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