Mysterious Mars Mound May Be Result Of Ancient Lava Flows, NASA Says

December 5, 2014 7:11 PM

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Mysterious Mars Mound May Be Result Of Ancient Lava Flows, NASA Says

Researchers are still trying to figure out what caused these "mystery" features. One intriguing theory suggests they were sculpted by ancient glaciation.

Researchers think that the dune sand, wall spurs and boulders shown here are all partially composed of olivine, a mineral that is highly susceptible to weathering by aqueous (water) processes.

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