Difference between revisions of "AY Honors/Waterfalls/Answer Key"
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Some waterfalls form in [[mountain]] environments where [[erosion]] is rapid and stream courses may be subject to sudden and catastrophic change. In such cases, the waterfall may not be the end product of many years of water action over a region, but rather the result of relatively sudden geological processes such as [[thrust fault]]s or [[volcano|volcanic action]]. | Some waterfalls form in [[mountain]] environments where [[erosion]] is rapid and stream courses may be subject to sudden and catastrophic change. In such cases, the waterfall may not be the end product of many years of water action over a region, but rather the result of relatively sudden geological processes such as [[thrust fault]]s or [[volcano|volcanic action]]. | ||
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==Types of waterfalls== | ==Types of waterfalls== | ||
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; Tiered : Water drops in a series of distinct steps or falls. | ; Tiered : Water drops in a series of distinct steps or falls. | ||
; Multi step : A series of waterfalls one after another of roughly the same size each with its own sunken plunge pool. | ; Multi step : A series of waterfalls one after another of roughly the same size each with its own sunken plunge pool. | ||
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==Gallery== | ==Gallery== | ||
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Image:Burney_Falls_504x402.JPG|Burney Falls, located near [[Burney, California]], USA | Image:Burney_Falls_504x402.JPG|Burney Falls, located near [[Burney, California]], USA | ||
</gallery> | </gallery> | ||
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==External links== | ==External links== | ||
Revision as of 19:19, 15 May 2006
A waterfall is usually a geological formation resulting from water, often in the form of a stream, flowing over an erosion-resistant rock formation that forms a sudden break in elevation. Waterfalls may also be artificial, and they are sometimes created as garden and landscape ornament.
Some waterfalls form in mountain environments where erosion is rapid and stream courses may be subject to sudden and catastrophic change. In such cases, the waterfall may not be the end product of many years of water action over a region, but rather the result of relatively sudden geological processes such as thrust faults or volcanic action.
Types of waterfalls
- Block
- Waterends a series of rock steps.
- Cataract
- A large waterfall. See Cataracts of the Nile for a well-known sequence of six.
- Fan
- Water spreads horizontally as it descends while remaining in contact with bedrock.
- Horsetail
- Descending water maintains some contact with bedrock.
- Plunge
- Water descends vertically, losing contact with the bedrock surface.
- Punchbowl
- Water descends in a constricted form, then spreads out in a wider pool.
- Segmented
- Distinctly separate flows of water form as it descends.
- Tiered
- Water drops in a series of distinct steps or falls.
- Multi step
- A series of waterfalls one after another of roughly the same size each with its own sunken plunge pool.
Gallery
- Base of Tower Fall with rainbow-750px.JPG
Tower Fall in Yellowstone National Park, USA
Wailua Falls in Hawaii, USA
Dettifoss in Iceland
Man-made waterfall at the Australian National Botanic Gardens in Canberra, Australia
Waterfall near Brienzersee, Switzerland
Earthen Dam Waterfall in Waverly, New York, USA
- Kaieteur.jpg
Niagara Falls, on the border between Canada and the USA
A small part of the Krimml Falls, Austria. Scale is given by the people on the right
Burney Falls, located near Burney, California, USA
External links
- World Waterfall Database
- WorldWaterfalls.com - Stock Waterfall Photos, Waterfall Information, Waterfall Forum
- Niagara Falls - Fullscreen QTVR Panorama
- Waterfalls of Victoria (Australia)
- Waterfalls of the world, links
ca:Cascada cs:Vodopád da:Vandfald de:Wasserfall et:Juga es:Cascada eo:Akvofalo fr:Chute d'eau gu:ધોધ id:Air terjun it:Cascata he:מפל מים la:Cataracta nl:Waterval ja:滝 no:Foss nn:Foss pl:Wodospad pt:Cachoeira simple:Waterfall sl:Slap su:Curug fi:Vesiputous sv:Vattenfall vi:Thác nước uk:Водоспад zh:瀑布
