Cardon silty clay, cultivated. The mollic epipedon is 10 to 15 inches thick. Deep cracking to depths of 40 to 55 inches and sloughing of the A1 horizons into cracks have caused a mixing of colors below the 10 to 15 inch depth. The soils have cracks that open and close once each year and remain open for 60 consecutive days or more in 7 out of 10 years. Common medium distinct, yellowish brown mottles occur at depths below 20 inches.
Reaction ranges moderately to strongly alkaline, and strongly calcareous.
The series control section is clay or silty clay. The soil is generally saturated within 30 inches when not drained. It contains 4 to 7.5 percent organic matter. This horizon has weak fine granular to moderate medium alkaline and contains more than 15 percent calcium carbonate equivalent and is 10 to 15 inches thick. The AC horizon has weak to moderate parallelepipeds structure and common to many slickensides.