Crescent-shaped sand dunes known as barchans occur in vast dune fields that have puzzled geologists because their size stays stable. A new model suggests this could result from the way large dunes 'birth' small dunes.
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Strangely Shaped Dunes Stay Stable Through 'Birthing'
Crescent-shaped sand dunes known as barchans occur in vast dune fields that have puzzled geologists because their size stays stable. A new model suggests this could result from the way large dunes 'birth' small dunes.
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