Texture is mainly clay but silty clay is allowed for moderately alkaline overwash phases. Reaction ranges from slightly acid to slightly alkaline. The Bss horizon has hue of 10YR, 2.5Y or 5Y, value of 2 or 3, and chroma of 1 or less. Redox concentrations in shades of yellow or brown range from none to common. Hard pitted concretions of calcium carbonate range from none to few.
Reaction ranges from slightly acid to slightly alkaline.
The Bkss horizon has hue of 10YR, 2.5Y, or 5Y, value of 4 to 6, and chroma of 1 or 2. Redox concentrations in shades of yellow or brown, or redox depletions in shade of gray range from few to common in some part. Spots of very dark gray or black soil materials from horizons above range from none to few. Concretions, threads, and masses of calcium carbonate range from 2 to 10 percent. Matrix effervescence ranges from very slight to strong.