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Erg Chebbi, Morocco Major dune seas of the Sahara in yellow, Great Sand Sea.Red dashed line shows approximate limit of the Sahara. Sand seas and dune fields generally occur in regions downwind of copious sources of dry, loose sand, such as dry riverbeds and deltas, floodplains, glacial outwash plains, dry lakes, and beaches.
The Great Sand Sea is an approximately 72,000 km 2 (28,000 sq mi) sand desert (erg) in the Sahara stretched from western Egypt and eastern Libya in North Africa. Most of the area is covered by sand dunes .
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A large dune complex is called a dune field, [7] while broad, flat regions covered with wind-swept sand or dunes, with little or no vegetation, are called ergs or sand seas. [ 8 ] [ 9 ] [ 10 ] Dunes occur in different shapes and sizes, but most kinds of dunes are longer on the stoss (upflow) side, where the sand is pushed up the dune, and have ...
Shoals and sandbanks are characteristic underwater seabed features of the southern North Sea and the eastern English Channel. The relatively shallow water depth allows tidal currents to transport, configure and alter seabed materials, such as sand, shells, clay, and gravel, into elongated banks or shoals of shallow water.
The Grand Erg Oriental (English: 'Great Eastern Sand Sea') is a large erg or "field of sand dunes" in the Sahara Desert. Situated for the most part in Saharan lowlands of northeast Algeria, the Grand Erg Oriental covers an area some 600 km wide by 200 km north to south. The erg's northeastern edge spills over into neighbouring Tunisia.
A sea is a large body of salt water. There are particular seas and the sea. The sea commonly refers to the ocean, the interconnected body of seawaters that spans most of Earth. Particular seas are either marginal seas, second-order sections of the oceanic sea (e.g. the Mediterranean Sea), or certain large, nearly landlocked bodies of water.
The Ubari Desert, Idehan Ubari, Idehan Awbari (Idehan means fine sand in Tamasheq [1]) or Ubari Erg is an erg in the hyper-arid Fezzan region of southwestern Libya with a surface area of approximately 58,000 km 2. [2] The area of the Ubari desert has been traditionally inhabited by Tuareg people, a Berber ethnic and traditionally nomadic ...