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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 .
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 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.
The area of the Rabyanah Sand Sea is in the western part of the Libyan Desert in the Kufra District of the Cyrenaica region. It is named after the oasis town of Rabyanah located towards its eastern end. Together with the Calanshio Sand Sea and the Great Sand Sea, the Rabyanah Sand Sea is part of the greater Libyan Desert. [2]
The Calanshio Sand Sea is the site of the missing World War II B-24 Liberator Lady Be Good. The wreck was discovered 200 km (120 mi) north of Kufra 15 years after it was reported missing in 1943. The crew bailed out believing they were over the sea, when their plane ran out of fuel, and they became lost.
The regions are not topographically confined, resembling sand seas. These dunes are interpreted to be longitudinal dunes whose crests are oriented parallel to the dominant wind direction, which generally indicates west-to-east wind flow. The sand is likely composed of hydrocarbon particles, possibly with some water ice mixed in. [76]
Marzuq Sand Sea seen from ISS, 2008 (centered at Detailed astronaut photograph, taken from low Earth orbit, showing classic large and small sand masses of the central Sahara where wind is a more powerful land-shaping agent than water.
Marginal seas as defined by the International Hydrographic Organization [1] This is a list of seas of the World Ocean, including marginal seas, areas of water, various gulfs, bights, bays, and straits. [2] In many cases it is a matter of tradition for a body of water to be named a sea or a bay, etc., therefore all these types are listed here.