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ShareQuicksand is loose, water-logged soil that yields easily to weight or pressure.
It can be formed when sand, silt, clay, or other grainy soil is saturated or supersaturated by water flowing from below ground (such as from an underground spring) with enough pressure to separate and suspend the grains.
The undisturbed sand often is or appears to be solid until some shock or sudden increase in pressure, such as a person stepping on it, causes it to liquify and lose its friction.
For more information about the topic Quicksand, read the full article at Wikipedia.org, or see the following related articles:
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Hayward Fault Zone — The Hayward Fault Zone is located in northern California in the San Francisco Bay Area. It is parallel to and east of its more famous (and much ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Quicksand at Wikipedia.org. See the Wikipedia copyright page for more details.
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