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Mauritania

jpg [223 kB, 1200 x 1114]

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The so-called Richat Structure, center right in this false-color satellite image, is a geological formation in the Maur Adrar Desert. Compare this image to the true-color photo taken from a spacecraft. Although it resembles an impact crater, the Richat Structure formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock. Image courtesy of USGS.

The so-called Richat Structure, center right in this false-color satellite image, is a geological formation in the Maur Adrar Desert. Compare this image to the true-color photo taken from a spacecraft. Although it resembles an impact crater, the Richat Structure formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock. Image courtesy of USGS.

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