NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als

NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als
NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als
NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als
NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als
NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als
NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, als

NASA satellite images of the Richat Structure. About the Richat Structure: The Richat Structure, also known as the Eye of the Sahara and Guelb er Richat, is a prominent circular feature in the Sahara desert of west–central Mauritania near Ouadane. This structure is a deeply eroded, slightly elliptical, 40-km in diameter, dome. The sedimentary rock exposed in this dome range in age from Late Proterozoic within the center of the dome to Ordovician sandstone around its edges. -- source link


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