Environmental Studies

A Dictionary of Ecology A Dictionary of Earth Sciences Further reading

asymmetric valley

A Dictionary of Ecology | 2004 | | Copyright

asymmetric valley A valley that has one side steeper than the other, the opposing slopes having significantly contrasting angles. This contrast may be caused by geologic structure or variation in the nature and intensity of erosional (e.g. periglacial) processes and there may be contrasts in the vegetation on the opposing slopes. Such valleys are common in past and present periglacial environments, where aspect has a significant effect on the nature of frost-based processes and on the depth of the active layer.

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MICHAEL ALLABY. "asymmetric valley." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "asymmetric valley." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-asymmetricvalley.html

MICHAEL ALLABY. "asymmetric valley." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-asymmetricvalley.html

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asymmetric valley

A Dictionary of Earth Sciences | 1999 | | Copyright

asymmetric valley Valley that has one side steeper than the other, the opposing sides standing at significantly contrasting angles. This may be due to geologic structure, or to variation in the nature and intensity of erosional processes. Such valleys are common in past and present periglacial environments, where aspect has a significant effect on the nature of frost-based processes.

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Pick a style below, and copy the text for your bibliography.

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AILSA ALLABY and MICHAEL ALLABY. "asymmetric valley." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "asymmetric valley." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-asymmetricvalley.html

AILSA ALLABY and MICHAEL ALLABY. "asymmetric valley." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-asymmetricvalley.html

Learn more about citation styles

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