Topical Terminology > B Horizon
B Horizon
For B Horizon we have a term and definition in Physical Geography.
B Horizon (Physical Geography) 
Soil horizon normally found below the A horizon and above the C horizon. This layer is characterized by the following features:
(1) Enrichment of clay because of illuviation from the A horizon.
(2) Enrichment of iron and aluminum oxides because of illuviation of these materials from the A horizon. In some cases the precipitation of iron can cause the development of a hardpan.
(3) Accumulation of calcium carbonate, calcium sulfate, and other salts.
(4) Higher bulk density because of the illuvial deposition of clay particles.
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