Martian Dune Fields
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Martian Dune Fields

February 4, 2013
One of the suggested goals for this observation was to investigate the relation of dune material with wall rock as a suspected sand source.

Outcrops emulating dark material are located upslope of the dune field. Adjacent HiRISE images show evidence that the dune material may be locally derived. Overlaps with other HiRISE images also help to monitor for change detection (dune slip faces and rock slides).

Coprates Chasma is part of the large Valles Marineris canyon, the largest one in the Solar System.

This caption is based on the original science rationale.

Credits: NASA/JPL/University of Arizona

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