Joel Kontinen
How long does it take to form a canyon? It depends.
Charles Darwin thought it took millions of years, but he was wrong.
Remember Mount Saint Helens? In June 1980 a single lava flow formed over 7.5 metres (25 feet) of sediment in just three hours.
Zion Canyon was formed in a landslide in almost no time at all.
Da'an River in Taiwan carved a a 25-metre (82 feet) wide gorge in a few years.
Then there’s Canyon Lake Gorge in Texas, a 1.6-kilometre (1 mile) long canyon was formed in just three days in a single flood in 2002.
Just imagine what a year-long global flood with plenty of water could do.
Source:
Lamb, Michael P. and Mark A. Fonstad. 2010. Rapid formation of a modern bedrock canyon by a single flood event. Nature Geoscience 3, 477 – 481.
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