Some pedons have a 2Bt or 2Btg horizon. The 2BC or 2BCg horizon has hue of 10YR, 2.5Y, or is neutral, value of 4 or 5, and chroma of 0 to 4. Texture is clay loam, silty clay loam, or clay. Clay content ranges from 27 to 42 percent. Rock fragment content ranges from 1 to 7 percent.
Reaction is slightly alkaline or moderately alkaline.
The 2Cd and 2Cdg horizons have colors, textures, and rock fragment content similar to the 2BC horizon. Reaction is slightly alkaline or moderately alkaline and contains carbonates. The calcium carbonate equivalent ranges from 15 to 30 percent. These are the Crane , Mokena , and Tiderishi series. None of these soils have a densic contact within the series control section.