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Tag Archives: Wirtz Crater
HiRISE: Changing dunes of Wirtz Crater
The large dark feature is a classic Martian sand dune. Most sand on Earth is made from the mineral quartz, which is white and bright. On Mars, most sand is composed of dark basalt, a volcanic rock. For this reason, … Continue reading →
Posted in Reports
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Tagged barchan dunes, basaltic sand, dunes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, Wirtz Crater
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