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drainage pattern
drainage pattern The spatial relationship between individual stream courses in an area. The resulting pattern often reflects the underlying rock type and structure, and several varieties are recognized. A dendritic pattern is the most common, characterized by a randomly branched arrangement. It is not structurally controlled, and is developed on a homogeneous rock, e.g. clay. A trellis pattern consists of subparallel streams, usually aligned along the geologic strike, and joined at right angles by tributaries. A rectangular pattern is dominated by right-angled bends, and reflects control by joints or faults. A centripetal pattern consists of stream courses converging into a central depression. The drainage network is the drainage pattern viewed geometrically.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "drainage pattern." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "drainage pattern." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-drainagepattern.html AILSA ALLABY and MICHAEL ALLABY. "drainage pattern." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-drainagepattern.html |
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drainage pattern
drainage pattern The spatial relationship between individual stream courses in an area. The resulting pattern often reflects the underlying rock type and structure, and several varieties are recognized. A dendritic pattern is the most common, characterized by a randomly branched arrangement. It is not structurally controlled and is developed on a homogeneous rock (e.g. clay). A trellis pattern consists of subparallel streams, usually aligned along the geologic strike, joined at right angles by tributaries. A rectangular pattern is dominated by right-angled bends, and reflects control by joints or faults. A centripetal pattern consists of stream courses converging into a central depression. The drainage network is the drainage pattern viewed geometrically.
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Cite this article
MICHAEL ALLABY. "drainage pattern." A Dictionary of Ecology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "drainage pattern." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O14-drainagepattern.html MICHAEL ALLABY. "drainage pattern." A Dictionary of Ecology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-drainagepattern.html |
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