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eluviation

 
Dictionary: e·lu·vi·a·tion   (ĭ-lū'vē-ā'shən) pronunciation
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n.
The lateral or downward movement of dissolved or suspended material within soil when rainfall exceeds evaporation.

[ELUVI(UM) + -ATION.]


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Britannica Concise Encyclopedia: eluviation
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Removal of dissolved or suspended material from a layer or layers of the soil by the movement of water when rainfall exceeds evaporation. Such loss of material in solution is often referred to as leaching. The process of eluviation influences soil composition.

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Geography Dictionary: eluviation
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The lateral or downward movement in suspension of clay or other fine particles. The clay-depleted horizon thus formed is an eluvial horizon and is found either below or in place of the A horizon. The eluviated particles may accumulate in the B horizon to form a clay pan.

 
 
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eluviate
Leaching (pedology)
Eluvium

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Geography Dictionary. A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved.  Read more