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Arabian Desert


Nature creation - Earth Desert ::-- 1.Antarctic - Desert|| 2.Sahara - Desert|| 3.Arctic - Desert|| 4.Arabian - Desert|| 5.Gobi - Desert|| 6.Kalahari - Desert|| 7.Patagonian - Desert|| 8.Victoria - Desert|| 9.Syrian - Desert|| 10.Great Basin - Desert|| Desert List||


Arabian Desert

The Arabian Desert is a vast desert wilderness stretching from Yemen to the Persian Gulf and Oman to Jordan and Iraq. It occupies most of the Arabian Peninsula with an area of 2,330,000 square kiliometers or (900,000 square miles). At its centre is the Rub'al-Khali, one of the largest continuous bodies of sand in the world. Gazelles, oryx, sand cats, and spiny-tailed lizards are just some of the desert-adapted species that survive in this extreme environment, which features everything from red dunes to deadly quicksand. The climate is extremely dry, and temperatures oscillate between extreme heat and seasonal night time freezes. It is part of the Deserts and xeric shrublands biome and the Palearctic ecozone. This ecoregion holds little biodiversity, although a few endemic plants grow here. Many species, such as the striped hyena, jackal and honey badger have become extinct in this area due to hunting, human encroachment and habitat destruction. Other species have been successfully re-introduced, such as the sand gazelle, and are protected at a number of reserves. Overgrazing by livestock, off-road driving, human destruction of habitat are the main threats to this desert ecoregion.



Geology/Geography

  • A corridor of sandy terrain known as the ad-Dahna desert connects the large an-Nafud desert (65,000 km2 or 40,389 square mile) in the north of Saudi Arabia to the Rub' al-Khali in the south-east.
  • the Tuwaiq escarpment is a region of 800 km (500 mi) arc of limestone cliffs, plateaux, and canyons.
  • Brackish salt flats: the quicksands of Umm al Samim
  • The Wahiba sands of Oman : an isolated sand sea bordering the east coast
  • The Rub' al-Khali desert is a sedimentary basin elongated on a southwest to northeast axis across the Arabian shelf. At an altitude of 1,000 metres (3,300 ft), the rock landscapes yield the place to the ar-Ruba' Al-Khali, vast wide of sand of the Arabian desert, whose extreme southern point crosses the centre of Yemen. The sand overlies gravel or gypsum plains and the dunes reach maximum heights of up to 250 m (820 ft). The sands are predominantly silicates, composed of 80 to 90% of quartz and the remainder feldspar, whose iron oxide-coated grains color the sands in orange, purple, and red.


Arabian Desert, arid region, eastern Egypt, lying between the Mediterranean Sea on the north, the Red Sea and the Gulf of Suez on the east, the Nubian Desert (along latitude 22° N) on the south, and the Nile River on the west. The western edge of the desert is demarcated by cliffs that rise steeply from the Nile Valley. To the east the terrain, mostly a rugged plateau, slopes upward to a range of jagged volcanic mountains bordering the Red Sea. Elevations in the range, which descends abruptly to the sea, exceed 2135 m (7000 ft). Aridity makes human habitation difficult, but a few small agricultural villages subsist in little basins in the plateau and mountains. Deposits of turquoise, phosphate rock, nitrates, petroleum, salt, and building stone are here, but are of limited economic significance.


arabian desert

Arabian Desert or Eastern Desert,c.86,000 sq mi (222,740 sq km), Egypt, bordered by the Nile valley in the west and the Red Sea and the Gulf of Suez in the east. It extends along most of Egypt's eastern border and merges into the Nubian Desert in the south. The Arabian Desert is sparsely populated; most of its inhabitants are based around wells and springs. Today most of the desert can be accessed by roads. Since ancient times Egypt has used the porphyry, granite, limestone, and sandstone found in the desert mountains as building materials. Oil is produced in the north. The name Arabian Desert is also commonly applied to the desert of the Arabian Peninsula.

 

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