The Bt1 horizon has hue of 5YR through 10YR, value of 4 or 5, chroma of 2 through 4. Subsoil crests usually have redder color than subsoil troughs and the centers of some troughs are dark gray. The reaction ranges from medium acid through neutral. The lower Bt horizons have hue of 7.5YR through 2.5Y, value of 4 through 5, chroma of 2 through 8. Reddish or brownish mottles range from none to common.
Reaction ranges from slightly acid through moderately alkaline.
The BCK horizon has hue of 7.5YR through 2.5Y, value of 5 through 7, chroma of 2 through 6. It is silty clay loam, silt loam, or clay loam. The calcium carbonate equivalent ranges from 20 to more than 60 percent. Concretions and soft masses of carbonates ranges from common to many. The C horizon, when encountered, is brownish, grayish, or whitish calcareous loamy material with or without weakly cemented chalk strata or limestone fragments.