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Geography

The Development of Ventifacts and Desert Pavements in Arid Environments

Quick fact

Some ventifacts are shaped into three-faced 'dreikanter' forms, and desert pavements can remain stable for thousands of years, slowly rearranging as dust accumulates beneath them.

Why this is interesting

Ever noticed a rock that looks like it was deliberately sanded into a sharp-edged sculpture? In deserts, the wind does exactly that—and also creates entire pavements of tightly packed stones.