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24 January 2022

  • curprev 14:4214:42, 24 January 2022 Suitupandshowup talk contribs 1,221 bytes +1,221 Falling dunes, as seen by HiRISE. Source: https://www.uahirise.org/PSP_010277_1650 Image credit: NASA/JPL/University of Arizona/Secosky This image shows a transect of approximately 8-kilometers of Coprates Chasma wall stratigraphy, which includes (moving down sequence): the southern plateau, wall spurs, fans of eroded material, gullies, sand dunes, and canyon floor. Dunes located in the center left show slip faces on the downhill side and aligned with the local gradient, indicating down sl...