Typic Humisol (TY.H)

Common horizon sequence: Om or Oh, Oh

Soils of this subgroup have the general properties specified for the Organic order and the Humisol great group. They are composed dominantly of well-decomposed organic materials. They are identified by the following properties:

1. The middle and bottom tiers, if present, are dominantly humic. A lithic contact may occur.
2. They do not have terric, hydric, cumulic, or limnic layers within the middle tier.
3. They have neither subdominant fibric layers with a total thickness greater than 12 cm nor subdominant mesic layers with a total thickness greater than 25 cm in the middle or bottom tiers (or in the middle and surface tiers if a lithic contact occurs in the middle tier).

Note: Diagnostic horizons are underlined.

List all known examples