Layered Bedrock on Mars | NASA's Mars Reconnaissance Orbiter
Layered sediments are the key to the puzzle of Martian history. They tell us about the conditions that existed when the sediments were deposited, and how they changed over time. This image shows an eroded mesa made up of rhythmically layered bedrock that seems to indicate cyclic deposition. The layers are accentuated by recent dark sand deposits that have accumulated on the benches of the brighter sediments. The plateau is topped by a younger set of layers that appear to be finer and less blocky than the older layers below, suggesting a different depositional environment. Similar layered sediments are found in nearby craters in southwestern Arabia Terra.
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.
“For 17 years, MRO has been revealing Mars to us as no one had seen it before,” said the mission’s project scientist, Rich Zurek of JPL.
Video Credit: NASA/JPL-Caltech/University of Arizona
Narration: Tre Gibbs
Duration: 1 minute
Release Date: Nov. 17, 2021
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