KAE.Gelaquepts

Key to Subgroups

KAEA. Gelaquepts that have a lithic contact within 50 cm of the mineral soil surface. Lithic Gelaquepts
Soil Families and Soil Series in Subgroup

KAEB. Other Gelaquepts that have a histic epipedon. Histic Gelaquepts
Soil Families and Soil Series in Subgroup

KAEC. Other Gelaquepts that have, throughout one or more horizons with a total thickness of 18 cm or more within 75 cm of the mineral soil surface, one or more of the following:
1. A fine-earth fraction with both a bulk density of 1.0 g/cm3 or less, measured at 33 kPa water retention, and Al plus 1/2 Fe percentages (by ammonium oxalate) totaling more than 1.0; or
2. More than 35 percent (by volume) fragments coarser than 2.0 mm, of which more than 66 percent is cinders, pumice, and pumicelike fragments; or
3. A fine-earth fraction containing 30 percent or more particles 0.02 to 2.0 mm in diameter; and
a. In the 0.02 to 2.0 mm fraction, 5 percent or more volcanic glass; and
b. [(Al plus 1/2 Fe, percent extracted by ammonium oxalate) times 60] plus the volcanic glass (percent) is equal to 30 or more. Aquandic Gelaquepts
Soil Families and Soil Series in Subgroup

KAED. Other Gelaquepts that have a slope of less than 25 percent; and
1. At a depth of 125 cm below the mineral soil surface, an organic-carbon content (Holocene age) of 0.2 percent or more and no densic, lithic, or paralithic contact within that depth; or
2. An irregular decrease in organic-carbon content (Holocene age) between a depth of 25 cm and either a depth of 125 cm below the mineral soil surface or a densic, lithic, or paralithic contact, whichever is shallower. Fluvaquentic Gelaquepts
Soil Families and Soil Series in Subgroup

KAEE. Other Gelaquepts that have a mollic or umbric epipedon. Humic Gelaquepts
Soil Families and Soil Series in Subgroup

KAEF. Other Gelaquepts. Typic Gelaquepts
Soil Families and Soil Series in Subgroup

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