📖 what
What is a plunge pool beneath a waterfall?
GeographyWaterfalls
Quick Answer
A plunge pool is the deep basin at the base of a waterfall, carved by the force of falling water and swirling rocks.
The Full Story
When water drops over a cliff, the impact and turbulence scour out a hole in the rock below. Stones and sediment trapped in the water act like tools, drilling and abrading the bedrock over time. Plunge pools are common at waterfalls of many sizes and can become surprisingly deep compared with the surrounding stream. They also help waterfalls retreat upstream as erosion undermines the lip of the fall.
Key Facts
1.Plunge pools form by erosion at the base of falls
2.Falling water and trapped rocks deepen them
3.They can help waterfalls migrate upstream
YouTube Angle
Suggested video title for this topic:
"The hidden basin that a waterfall carves beneath your feet"