The particle-size control section averages between 35 and 45 percent clay. Reaction is neutral or slightly alkaline. Carbonates are in the lower part of some pedons. The BC or BCt horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 3 or 4. It is silty clay loam.
Reaction is slightly alkaline or moderately alkaline and contains carbonates.
The C horizon has 10YR or 7.5YR hue, value of 3 to 5, and chroma of 3 to 4. It typically is silty clay loam, but in some pedons it becomes silt loam with depth. Thin layers of fine sand, silt, silt loam, very fine sandy loam, silty clay, or clay or various combinations of these textures are also in some pedons. Reaction is slightly alkaline or moderately alkaline and contains carbonates. Alexandria and Lybrand soils have more than 2 percent rock fragments in the lower part of the series control section.