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Erg (Landform)
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High Quality Content by WIKIPEDIA articles! An erg (also sand sea or dune sea) is a large, relatively flat area of desert covered with wind-swept sand with little or no vegetative cover. The term takes its name from the Arabic word arq, meaning "dune field". Strictly speaking, an erg is defined as a desert area that contains more than 125 square kilometers of aeolian or wind-blown sand and where sand covers more than 20% of the surface. Smaller areas are known as dune fields. The largest hot desert in the world, the Sahara, is 9,000,000 km² and contains several ergs, such as the Chech Erg (24°34 N 2°35 W / 24.57°N 2.59°W / 24.57; -2.59) and the Issaouane Erg (31°11 N 7°56 E / 31.18°N 7.93°E / 31.18; 7.93) in Algeria. Approximately 85% of all the Earth's mobile sand is found in ergs that are larger than 32,000 km².[3] Ergs are also found on other celestial bodies, such as Venus, Mars and Saturn's moon Titan.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131681325
- Genre Geowissenschaften
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Anzahl Seiten 92
- Herausgeber Alphascript Publishing
- EAN 9786131681325
- Format Kartonierter Einband
- Titel Erg (Landform)
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