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Tunisia, and "kalut" (Persian for "ridge") in Iran. The massive features of mega-yardangs are called "ridges and corridors" (crêtes et couloirs) in French.

Description

A yardang is formed in cohesive material. Hedin first found the wind-sculptured "clay terraces" or yardangs in the dried up riverbed of the Kurruk-daria in Central Asia.

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