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HiRISE 10K: Star Dunes in Tyrrhena Terra
The dune sands are most likely made of basalt, a common volcanic rock. The possible clay-bearing material is probably within the surrounding bedrock. (Click/tap link for full cutout and additional information.)
https://flic.kr/p/2nadPz5
NASA/JPL/UArizona
#Mars #science
@HiRISE Have you ever looked at a piece of fresh tripe? It looks *just* like this. What an incredible image! 😍