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The Richat Structure, or Guelb er Richât (Arabic: قلب الريشات, romanized: Qalb ar-Rīšāt, Hassaniyya: [galb er.riːʃaːt] ⓘ), is a prominent circular geological feature in the Adrar Plateau of the Sahara. It is located near Ouadane in the Adrar Region of Mauritania.
The Sahara (/ s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /) is a desert spanning across North Africa. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic. [1] [2] [3]
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In 2007, Stanford's Cantor Arts Center opened an exhibition, "Art of Being Tuareg: Sahara Nomads in a Modern World", the first such exhibit in the United States. It was curated by Tom Seligman, director of the center. He had first spent time with the Tuareg in 1971 when he traveled through the Sahara after serving in the Peace Corps.
Landsat 8 image of Gweni-Fada crater in the Ennedi Plateau. The Ennedi Plateau is located in the northeast of Chad, in the regions of Ennedi-Ouest and Ennedi-Est.It is considered a part of the group of mountains known as the Ennedi Massif found in Chad, which is one of the nine countries that make up the Sahelian belt that spans the Atlantic Ocean to Sudan.
The Sahara does experience rain, but usually just a few inches a year and rarely in late summer. Over two days in September, however, intense rain fell in parts of the desert in southeast Morocco ...
The Sahara desert is a key source of dust storms, particularly the Bodélé Depression [7] and an area covering the confluence of Mauritania, Mali, and Algeria. [8] Sahara dust is frequently emitted into the Mediterranean atmosphere and transported by the winds sometimes as far north as central Europe and Great Britain. [9]
Emi Koussi lies in Chad, Africa, and is part of the Tibesti Mountains [5] as well as its highest peak [6] and thus of the Sahara; [7] many peaks of the Tibesti exceed 2,000 metres (6,600 ft) in height. [6] These mountains are formed by a group of volcanoes that grew on top of a large dome of Earth's surface. [8]