The 2Bt horizon has hue of 10YR, 2.5Y or 5Y, value of 4 to 6, chroma of 2 to 6. Texture is channery analogues of silty clay, or clay. Reaction is slightly alkaline to moderately alkaline. The 2BCt has a hue of 10YR, 2.5Y or 5Y, value of 4 to 6, and chroma of 2 to 6. Texture is flaggy or very flaggy analogues of silty clay loam, silty clay or clay.
Reaction is moderately alkaline.
The 2C horizon hue of 10YR, or 2.5Y value of 4 or 5, and chroma of 2 to 4. Texture is silty clay or silty clay loam. Weathered fragments of limestone or shale comprise 50 to 75 percent of the volume. Reaction is moderately alkaline. The 2R horizon is limestone with interbedded calcareous soft shale.