SheshiBesh: UNEXPLAINED GEOLOGICAL PHENOMENON. The Richat Structure, also known as the Eye of the Sahara and Guelb er Richat, is a prominent circular feature in the Sahara desert near Ouadane, west–central Mauritania. This structure is a deeply eroded, slightly elliptical, 40 km in diameter dome. The estimated age of the formation is approximately 500 - 600 million years. Перейти к записи |