B Horizon Definition

bēhərīzən
noun
In ABC soil, the second and middle zone, characterized by an accumulation of soluble or suspended organic material, clay, iron, or aluminum.
American Heritage
The second soil zone, in which material leached from the overlying zone is concentrated.
Webster's New World
Synonyms:
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other
In ABC soil, the second and middle zone, characterized by an accumulation of soluble or suspended organic material, clay, iron, or aluminum. These materials originate in the A horizon and are transported to the B horizon through the process of eluviation. B horizons often have a blocky structure and are reddish in color due to the presence of oxidized metals.
American Heritage Science
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