Abstract

Evaluation of analytical data for a soil described in the field as an Orthic Humo-Ferric Podzol revealed the presence of a paleo-Eutric Brunisol in the lower portion of the solum. A layer of volcanic ash overlying this Brunisolic solum served as a stratigraphic marker for separating the two sola. The IIBfh and IIIBf horizons of the Orthic Humo-Ferric Podzol soil, as described in the field, met the classification requirements for podzolic B horizons. However, the depth to which processes of podzolization appeared active barely included the layer of volcanic ash, comprising the IIIBf horizon of the pedon. The development of the pronounced IVBm horizon was ascribed to paleogenesis.

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