Depth to a paralithic contact in shale ranges from 40 to 60 inches. Coarse fragments in the sand and gravel are primarily igneous. The particle size control section averages between 25 and 33 percent clay. Redox concentrations are present as masses of iron accumulation lining ped surfaces and pores. Content of rock fragments ranges from 0 to 5 percent.
Reaction is slightly acid or neutral.
Redox concentrations are present throughout, commonly as masses of iron accumulation lining ped surfaces and pores. Content of rock fragments ranges from 0 to 15 percent in the upper part and 15 to 35 percent in the lower part. Reaction ranges from slightly acid to moderately alkaline. It commonly is gravelly loamy coarse sand but includes strata of gravel and sand. Content of rock fragments ranges from 15 to 35 percent.