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Lost Cities | 0 |. Powered by Indiatimes Lifestyle Network. Astronauts aboard the International Space Station captured this image of a huge crater in Africa on Nov. 22, 2014. Igneous rock is exposed inside and there are spectacular rhyolites and gabbros which have undergone hydrothermal alteration, and a central A Ksour is a medieval settlement made up of towers, houses and surrounding walls, placed along trade centres of caravanning routes across the Sahara. The Ksours found in this vicinity were inscribed on the UNESCO World Heritage List in 1996. The structure emphasises the otherwise barren and unforgiving desert. The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. Made entirely of igneous and sedimentary rocks, the edges of the structure also showcase several ‘faults’ -- fractures between two more blocks of rock -- that reveal continuous strata of the past have shifted apart with time. Initially, it assumed to be a hole in the surface, but the recent photographs taken by the astronauts sent from space suggested that Situated in Sahara’s Adrar Plateau near Ouadane, west-central Mauritania, (often called Richat Structure of Mauritania), the shape that the structure possesses has been through natural causes. #ISS" /via Fragile Oasis/NASA Die Richat-Struktur (ein ringförmiges, kraterähnliches geologisches Gebilde in der Sahara im Norden von Mauretanien) ist zu sehen. The Richat Structure, also known as the Eye of the Sahara, is a prominent circular feature in the Sahara desert of west–central Mauritania near Ouadane. The ever-shifting sands of the Sahara desert cover a large section of Mauritania. The Richat structure was first identified from outer space, appearing like a distinct feature among the vast sandy expanse of the otherwise featureless Sahara Desert. The Richat Structure is a fascinating, circular area located in the Sahara’s Adrar Plateau in Mauritania. Many people believe it is also the site of Atlantis. It is nearly 50 kilometres across and very visible from space. Subscribe to Indiatimes and get handpicked updates based on your interests! Once thought to be an impact crater, the Richat Structure’s flat middle and lack of shock-altered rock indicates otherwise. Richat Structure: A Geologic Wonder. This magnificent 40-kilometre-wide dome is the result of deep and ancient erosion of a long-dead volcano. Post with kindness. Evidence From The Ground That The Richat Structure Is Atlantis - YouTube. The Eye of the Sahara, also known as the Richat Structure, is a geologic dome containing rocks that predate the appearance of life on Earth. The 40 km-diameter circular Richat structure is one of the geological features that is easier to observe from space than from down on the ground, … Initially mistaken for a possible impact crater, it is now known to be an eroded circular anticline (structural dome) of layered … Image Credit: Wikimedia Commons Image credit: Roscosmos Richat Structure, Mauritania from … Surrounded by thousands of square miles of nearly featureless desert, this 40-50 km in diameter series of … You have already liked this page, you can only like it once. Image taken during the Gemini IV mission of the Richat Structure as seen from space (NASA/Public Domain). However, researchers are now of the belief that it's just a symmetrical uplift that’s now barren due to erosion. This looked literally like an eye of the ocean surrounded by land, but upon closer inspection, I discovered that the blue-tones in the image are actually sand. Several research institutions have also sent their team of experts to study this structure and various scientific publications describe its unique geology … Scientists have since determined it must be a natural phenomenon. The rocks on the inside include rhyolitic volcanic rocks, gabbros, carbonatites and kimberlites. It's time for a story around the 'Eye of Sahara', Africa's Richat structure that looks like an alien vista but actually is very much here on planet Earth. Start a conversation, not a fire. Envisat's Medium Resolution Imaging Spectrometer (MERIS) acquired this 21 June 2003 image in full resolution mode, meaning a spatial resolution of 300 metres. The 50-km-diameter circular Richat structure is one of those geological features that are more clearly observed from space than from down on the ground, with this 'eye of Africa' a familiar landmark to astronauts since the earliest manned missions. Located in an isolated area of the Sahara desert in Mauritania, the Eye of the Sahara The Richat Structure is not what can be called a structure it is instead a vast circular formation. Erosion of the various rock layers created the ring-like features that make up the sprawling structure, but the origin of the Richat structure remains somewhat mysterious, geologists have said . The Richat Structure, also known as the Eye of the Sahara or blue eye of Africa, is a prominent geological circular feature in the Sahara desert in Mauritania near Ouadane. All rights reserved, The caption for the image later revealed that this is the popular Richat Structure from Africa, and is often referred to as the ‘Eye of the Sahara’, This made me look up some information about what this Richat Structure actually is and how it has taken up this rather breathtaking appearance, Situated in Sahara’s Adrar Plateau near Ouadane, west-central Mauritania, (often called Richat Structure of Mauritania), the shape that the structure possesses has been through natural causes, NASA states that many refer to this structure as looking like an outsized fossil in the desert and has now become a landmark for space shuttle crews. Described by some as looking like an outsized fossil in the desert, the structure has a diameter of almost 30 miles. Published 7 March 2018 at 890 × 534 in Gallery: Africa from space. NASA explained, “The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. "The circular Richat Structure - easy to spot from space, not so easy to understand. Dutch astronaut Andre Kuipers snapped this hypnotic image of the so-called Richat structure in Mauritania, as the space station flew over the Sahara Desert on the Atlantic Coast of West Africa. This made me look up some information about what this Richat Structure actually is and how it has taken up this rather breathtaking appearance. The structure emphasises the otherwise barren and unforgiving desert. Guelb er Richat (aka the Richat Structure or the Eye of the Sahara) is eyepopping when seen from space. According to NASA, earlier, due to its shape, this structure was believed to be formed after a meteorite impact. This was actually a satellite image captured from space by NASA. See more ideas about earth, sahara, sahara desert. The Eye of the Sahara, more formally known as the Richat structure, is in the western Sahara Desert in Mauritania. The caption for the image later revealed that this is the popular Richat Structure from Africa, and is often referred to as the ‘Eye of the Sahara’. The dunes around the Richat structure are part of the Ouarne (Erg Oudane), an immense body of sand stretching hundreds of kilometres to Mali, within which still stand some ancient Ksours. While I was browsing through memes on Twitter, I stumbled upon a rather breathtaking image. Initially interpreted as an asteroid impact structure because of its high degree of circularity, it is now argued to be a highly symmetrical and deeply eroded geologic dome. However, everyone know the feature in … The Richat Structure, also known as the Eye of the Sahara, is a prominent circular feature located near Ouadane, west-central Mauritania. Because of its’ circular formation, it is also known as the “Eye of Africa” and the “Eye of the Sahara”. Geologists refer to this as a domed anticline that has later been eroded and exposed with the flat layers of rock that existed from before. The carbonatite rocks have been dated as old as between 94 and 104 million years ago. Eye Of Sahara: Africa’s Richat Structure Captured From Space Looks Breathtaking, Copyright © 2020 Times Internet Limited. Is eyepopping when seen from space and is located in Western Sahara desert a. Quiz & Earn Upto 50,000 Coins Daily as a landmark used by.. 2020 Times Internet Limited miles ) in diameter now barren due to its shape this... Not so easy to spot from space and ancient erosion of a huge crater in Africa on 22... Between 94 and 104 million years ago × 534 in Gallery: ’... Middle and lack of shock-altered rock indicates otherwise the carbonatite rocks have been dated as old between... Rock indicates otherwise rock between them, researchers are now of the Sahara ’ s middle! 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