Pedestal Crater Margin (PSP_008508_1870) June 29, 2008Posted by jtintle in Planets, Space Fotos.
Tags: JPL, Mars, NASA, Pedestral Crater, University of Arizona
NASA/JPL/University of Arizona
At this site, only a small part of the edge of the ejecta is visible. The ejecta is eroding, leaving a ragged edge with some detached mesas and buttes. The uppermost layer in the small cliffs is clearly strong and erosion-resistant, as it forms steep and even overhanging edges, ultimately breaking up into boulders which fall down the slopes. This layer armors the underlying material against erosion. Sites like this offer the opportunity to study units of rock that otherwise might have been erased by erosion.