The Richat Structure is a deeply eroded, slightly elliptical dome with a diameter of 40 kilometres (25 mi). 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.

Mar 15, 2024 · In the western Sahara Desert lies a natural wonder that has intrigued scientists and adventurers for centuries. Known as the Richat Structure — or, more commonly, the Eye of the Sahara — this massive geological formation resembles a giant eye.

The Richat Structure is a large geographic feature with concentric rings located in the Sahara near Ouadane, Mauritania. It is an uplifted geological dome formed by molten rock during the Cretaceous Period.

Nov 24, 2023 · The Eye of the Sahara, also known as the Richat Structure, is a geological formation located in the Sahara Desert near Ouadane, Mauritania. This unique and distinctive feature is a massive circular structure that spans approximately 30 miles (50 …

Jul 9, 2022 · Taken by an astronaut onboard the International Space Station (ISS), this photograph places the Richat Structure—a geologic feature in Mauritania characterized by its concentric rings—in context with the extensive dune fields that surround it.

Apr 15, 2021 · Have you ever seen the unbelievable geological formation in the middle of the Sahara Desert? The Richat Structure is one of Earths greatest mysteries.

Apr 29, 2018 · The Richat Structure of Mauritania has captured the attention of astronauts for about as long as NASA has sent humans into orbit around Earth. This circular geologic feature is thought to be caused by an uplifted dome—geologists would classify it as a domed anticline —that has been eroded to expose the originally flat rock layers.

Jun 5, 2023 · Richat structure is visible from space due to its large size and absence of vegetables, and it resembles an eye, especially an ox’s or bull’s eye. Some people describe its ridges as half-cut onion-like layers or an outsized ammonite fossil in the Sahara Desert.

Jun 21, 2024 · Geologists have determined that the Eye of the Sahara, also known as the Richat Structure, formed between 1 billion and 542 million years ago. It is a deeply eroded and uplifted geologic dome composed of sedimentary and volcanic rock layers.

The Richat Structure, often referred to as the “Eye of the Sahara,” is a remarkable geological formation located in the heart of the Sahara Desert in Mauritania. This circular feature, which spans approximately 50 kilometers in diameter, is easily recognizable from space and has intrigued scientists, geologists, and explorers alike for decades.