Search results for:  D horizon
 

Number of matches:  4

D horizon The soil layer below the effect of weathering, made up of undifferentiated and unconsolidated parent materials, located immediately below the c horizon. See also: A horizon, B horizon.

A horizon The uppermost layers of soils consisting of partly decomposed plant remains and relatively fresh leaves and other plant debris; the surface mineral layer, high in organic matter and dark in color; and the lighter colored layer where leaching of solutes and suspended materials occurs.

B horizon The soil layer between A and c horizons, in which materials from overlying horizons accumulate from precipitation or suspension.

c horizon In soils, the partly weathered rock fragments which are the parent materials for the upper A horizon and B horizon. This is occasionally lacking. See also: D horizon.

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