Web10 de set. de 2016 · The Richat Structure is a deeply eroded, slightly elliptical dome with a diameter of 40 km. The sedimentary rock exposed in this dome ranges in age from Late Proterozoic within the center of the dome to Ordovician sandstone around its edges The Folded layers in valley in Namibia Geologic Folds in the Lower Ugab valley in Namibia. Web8 de jan. de 2009 · In the midst of the vast, vacant Sahara desert, just outside of Ouadane, Mauritania, lies a 30-mile wide geological oddity known the Richat Structure, sometimes called the “Eye of Africa ...
The mystery behind the ‘Eye of the Sahara’ – the Richat …
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Web1 de jan. de 2001 · Detailed Description The so-called Richat Structure is a geological formation in the Maur Adrar Desert in the African country of Mauritania. 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. Collection: Earth as Art … WebArchaeology - Visiting Atlantis. A huge collection of artefacts is found in and around the Richat Structure. Most are approximately 12.000 years old or older. A fascinating stone was found not too far from the site which George S Alexander and Natalis Rosen claim to be the site of Atlantis. The locals call it the ‘SURFBOARDS OF THE GODS ... WebThe feature is constructed from two distinct eruptive centers. Field mapping shows that the gabbroic rocks in the Richat Structure form two concentric ring dikes. The inner ring with a width of 20m is located 3 km from the center of the feature. The outer ring has a width of 50m and lies 8 km from the center of the structure. thinkpad edge 15 0319 hdd caddy