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About Fraser Hamilton
Expertise
I have over 15 years of professional experience in the environmental geology field. I am well versed in general geology types of questions and answers. In addition I have a keen understanding of physical stratigraphy (especially in the Valley and Ridge of Central PA) and cycles.

Experience
Eight years of education, fifteen years of professional experience. Have worked or studied in ME, PA, TX, KY, IN, TN, OH, WA and Scotland.

Publications
Geological Society of America
American Association of Petroleum Geologists
Properties Magazine
Cleveland Bar Association
Cleveland Engineering Society

Education/Credentials
BA Geology/Math, University of Maine at Farmington
MA Geology - Physical Stratigraphy, Temple University
Post Grad Studies Geology - Texas A&M University

Awards and Honors
Distinguished graduate teaching award, Temple University

 
   

You are here:  Experts > Science > Geology > Geology > Waterfalls and Rivers

Geology - Waterfalls and Rivers


Expert: Fraser Hamilton - 10/10/2009

Question
Hi,

I read that waterfall is formed because of rivers flowing over the mountain rocks. How are rivers exactly formed? Does the clouds condense and form the river over the mountains. why are the waterfalls occur only in specific spots in a mountains? Also why are some waterfalls are seasonal and others are perennial?

Regards,
Moosa

Answer
Rivers are how water gets from teh mountains to the oceans.  The water may come from rain, snow melt or glacier melt.  Waterfalls typically occur where there is a v. hard layer of rock that is difficult to erode.  That layer holds up the waterfall. Waterfalls might be seasonal if they depend on snow melt or v. heavy rains.  They might perennial if there is glacier melt or a spring fed sources, etc.

Hope this helps.

Fraser

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