📖 what
What is a waterfall retreat?
Quick Answer
Waterfall retreat is the backward movement of a waterfall as erosion cuts into the rock at its base. Over time, the falls migrate upstream.
The Full Story
A waterfall often erodes the rock beneath and behind it, especially at the plunge pool and along joints in the rock. As the support at the edge weakens, blocks collapse and the waterfall shifts upstream. This process can happen very slowly or relatively quickly depending on rock type and water volume. Niagara Falls is a classic example of a waterfall that has retreated over time.
Key Facts
1.Waterfall retreat is upstream migration by erosion
2.It is driven by collapse at the base and behind the lip
3.Niagara Falls has retreated over geological time
YouTube Angle
Suggested video title for this topic:
"How waterfalls move backward over time"
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