“Ignorance, the root and stem of all evil.” - Plato
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Mauritania, officially the Islamic Republic of Mauritania, is a country in the Maghreb region of West Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal to the southwest. By land area Mauritania is the 11th-largest country in Africa and the 28th-largest in the world; 90% of its territory is in the Sahara desert. Most of its population of 5.4 million live in the temperate south of the country; roughly a third of the population is concentrated in the capital and largest city, Nouakchott, on the Atlantic coast.The Richat Structure, or Guelb er Richât (Arabic: قلب الريشات,) often called the Eye of Africa is a prominent circular geological feature at the northwestern edge of the Taoudeni Basin, on the Adrar Plateau of the Sahara. It is located near Ouadane in the Adrar Region of Mauritania. In Hassaniya Arabic, rīšāt means feathers and it is also known locally in Arabic as tagense, referring to the circular opening of the leather pouch that is used to draw water from local wells.
It is an eroded geological dome, 40 kilometres in diameter, caused by a subsurface igneous intrusion deforming the overlying sedimentary rock layers, causing the rock to be exposed as concentric rings with the oldest layers exposed at the centre of the structure. Igneous rock is exposed inside and there are rhyolites and gabbros that have undergone hydrothermal alteration, and a central megabreccia. The structure is also the location of exceptional accumulations of Acheulean Paleolithic stone tools. It was selected as one of the 100 geological heritage sites identified by the International Union of Geological Sciences (IUGS) to be of the highest scientific value.
The Richat Structure has been the subject of unsubstantiated fringe claims to be the site of Atlantis mentioned in the works of Plato. This claim is primarily based on the concentric nature of the structure, which superficially matches Plato's description of the city. Most classicists believe that Atlantis was a fictional rhetorical invention by Plato, rather than a real geographic location.
According to archaeologist Sean M. Rafferty, other than superficially matching Plato's Atlantis description in being circular, in its particular details, including being a geologically ancient natural structure, the Richat Structure bears little resemblance to Plato's description of Atlantis, with the Richat Structure's location far inland in a desert contradicting Plato's information regarding the location of Atlantis. Skeptic Steven Novella criticised other inconsistencies in the claim, including the lack of any archaeological evidence for a city having been built there, and the lack of evidence for the canals mentioned in Plato's Atlantis account.

























