Richat Structure In Mauritania

The cause of the richat structure in the sahara desert of mauritania has been debated for many years. At first it was thought to be a meteor impact crater due to its circularity but this has since been disproven due to the lack of shock-altered rock in its vicinity.

This massive (30 mile diameter) oddity is now believed to have been a rock dome sculpted over time by erosion. This incredible image was taken by the advanced spaceborne thermal emission and reflection radiometer (aster) on october 7th, 2000.

Also see Unbelievable Design Video

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