HiPOD: Where Does the Sand Come From?

This image shows one possible place where sand grains are being produced on Mars today. Discovered in images from the Context Camera, this region exhibits dark material that is being eroded from dark layers in the bedrock of a semicircular depression near the boundary of the Southern highlands and the Northern lowlands.

More: https://uahirise.org/hipod/ESP_051780_1725
NASA/JPL-Caltech/UArizona
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