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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.
Guelb er Richat structure. With a diameter of almost 50 kilometers (31 mi), it has become a landmark for Space Shuttle crews. Initially interpreted as a meteorite impact structure because of its high degree of circularity, it is now thought to be merely a symmetrical uplift (circular anticline) that has been laid bare by erosion.
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The concentric Guelb er Richat is a prominent feature of the north-central region. Kediet ej Jill , near the city of Zouîrât , has an elevation of 915 metres (3,000 ft) and is the highest peak. The plateaus gradually descend toward the northeast to the barren El Djouf , or "Empty Quarter," a vast region of large sand dunes that merges into ...
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Guelb er Richât: 28 November 2020 50 ouguiya Violet Ibn Abbas mosque, Nouakchott Teapot; musical instruments 28 November 2017 100 ouguiya Green Tower Cattle 28 November 2017 200 ouguiya Yellow Tower Camels 28 November 2017 500 ouguiya Blue Tower Trawler; fish 28 November 2017 1,000 ouguiya Brown Tower Locomotive of an ore train 28 November 2017
[citation needed] It is published by the Urdu Lughat Board, Karachi. The dictionary was edited by the honorary director general of the board Maulvi Abdul Haq who had already been working on an Urdu dictionary since the establishment of the Urdu Dictionary Board, Karachi, in 1958. [1] [2] [3] Urdu Lughat consists of 22 volumes. In 2019, the ...
Urdu U+06D3 ۓ Arabic Letter Yeh Barree With Hamza Above Urdu U+06D4 ۔ Arabic Full Stop Urdu U+06D5 ە Arabic Letter Ae Uyghur, Kazakh, Kyrgyz U+06D6 ۖ Arabic Small High Ligature Sad With Lam With Alef Maksura U+06D7 ۗ Arabic Small High Ligature Qaf With Lam With Alef Maksura U+06D8 ۘ