Cliff top dunes, also called perched dunes, are dunes that sit on top of cliffs. They are uncommon, because they develop only under unusual conditions, such as a dune advancing up a pre existing slope that is later eroded into a cliff, or a dune forming during a period of high sea level that is later exposed as a cliff face once sea level drops.
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Source Cliff-top dune (Wikipedia)
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Cliff-top dune (Wikipedia)
In Discipline: Geomorphology, Lead paragraphQuote, In Discipline: Geomorphology, Lead paragraph
Cliff-top dunes, also known as perched dunes, are dunes that occur on the tops of cliffs
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