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quicksand





Sand saturated with water to form a sand-water suspension possessing the characteristics of a liquid. Quicksands may form at rivermouths or on sandflats, and are dangerous as they appear identical to adjacent sand. In fact, the density of the suspension is less than that of the human body so that, if a person does not struggle, he or she may escape being engulfed.


Related category

   • GEOLOGY AND PLANETARY SCIENCE