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Dark Deposits around a Volcanic Fissure Adjacent to Tharsis Tholus
Posted on Monday, February 25, 2013
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Waspie_Dwarf

Image credit: NASA/JPL/University of Arizona
Uploader comment: There have been a number of claims in recent years that there are small dark volcanic ash deposits on Mars, suggesting very recent volcanic eruptions. However, most of these claims have not stood up to scrutiny by HiRISE.
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