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quicksand
geology
- Related Topics:
- sand
- quick
- coastal feature
quicksand, state in which saturated sand loses its supporting capacity and acquires the character of a liquid. Quicksand is usually found in hollows at the mouths of large rivers or along flat stretches of streams or beaches where pools of water become partially filled with sand and an underlying layer of stiff clay or other dense material prevents drainage. Mixtures of sand, mud, and vegetation in bogs often act like true quicksands. Once considered, especially by construction engineers, to be a special type of sand, quicksand is now recognized as a condition that may be assumed by any sand if ...(100 of 206 words)