Bryce
Canyon is not a "real" canyon. It is not carved by
flowing water. Water is the active ingredient here but in the form of
"frost-wedging" and chemical weathering.
For
200 days a year the temperature goes above and below freezing every day.
During the day, melted water seeps into fractures only to freeze at night,
expanding by 9%. Now as ice, it exerts a tremendous force (2,000 - 20,000
pounds per square inch). Over time this "frost-wedging"
shatters and pries rocks apart. In addition, rain water, which is naturally
acidic, slowly dissolves the limestone, rounding off edges and washing
away debris.
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