Tag Archives: gypsum dunes

HiRISE: North polar gypsum dunes

These sand dunes are a type of aeolian bedform and partly encircle the Martian North Pole in a region called Olympia Undae. Unlike most of the sand dunes on Mars that are made of the volcanic rock basalt, these are … Continue reading

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HiRISE: Land of gypsum dunes

Beautiful Mars series. Land of gypsum dunes. More Beautiful Mars images.

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