Sunday, 22 April 2007

Waterfall Formation

Waterfalls form where the river bed has a layer of harder rock overlying the softer rocks.

  1. As water falls the softer rock is eroded much more quickly than the harder rock; therefore undercutting the harder rock.
  2. The hard, overrhanging rock eventurally collapses.
  3. The collapsed rocks fall into the plunge pool causing more erosion of the soft rocks and a deeper plunge pool.
  4. This goes on continuously causing the waterfall to retreat upstream.
  5. The waterfall leaves a steap sided gorge as it reatrets.
Waterfalls may also be caused as a result of:
  • Glacial Erosion
  • A Fall in Sea Level
  • Earth Movement

3 comments:

Chandni Joshi said...

so good !!!!!
thanks but i think you spelt steep incorrectly....steep not steap

Cindy Dy said...


This is really an interesting topic. I had a great time surfing and found some important tips and information from your blog. Keep it up.

Bob
www.gofastek.com

sarah lee said...

I really enjoyed reading your article. I found this as an informative and interesting post, so i think it is very useful and knowledgeable. I would like to thank you for the effort you have made in writing this article.


edupdf.org