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What is a sand sea?
Quick Answer
A sand sea, or erg, is a vast desert area covered by dunes and wind-blown sand.
The Full Story
An erg is a large expanse of sand dunes that can extend for tens of thousands of square kilometers. It forms where wind transport and sediment supply create thick accumulations of sand, usually in very dry regions. Sand seas are only one type of desert landscape; many deserts are mostly rock or gravel rather than sand. The Grand Erg Oriental in the Sahara is a classic example of a sand sea.
Key Facts
1.An erg is a dune-covered desert region
2.It can cover tens of thousands of square kilometers
3.Many deserts are not sand seas
YouTube Angle
Suggested video title for this topic:
"Not all deserts are rock—this is the ocean of sand"
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