1. As water flows it erodes the soft rock quicker, this then undercutts the hardrock.
2. As the hard rock is not supported and lef thanging this eventually collapses.
3. The fallen rock drops into the plunge pool and causes more erosion.
4. This process is then repeated and eventually the waterfall moves up stream.
5. Steep sided gorge formes when the waterfall retreats.
Comments
No comments have yet been made