OXFORD 9000
📚 noun • entry_id 43800

barchan

/ˈbɑːk(ə)n/
Meanings (ES + gloss)
barján
An arc-shaped shifting sand dune comprising well-sorted (uniformly sized) sand.
But to follow the dunes around the foot of their slopes is also tedious and one can walk for half a kilometre east or west, finding one barchan linked to another and no easy way th…
The sand is usually very well sorted in barchans, for it is constantly re-worked as the dune 'marches'. The marching also causes cross-bedding inside the barchan, with a dip parall…
Phrases
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