The Nankin series consists of very deep, well drained, moderately slowly permeable soils that formed in stratified loamy and clayey marine sediments. These soils are on uplands of the Coastal Plain. Slopes range from 0 to 60 percent. 30 degrees 39 minutes 52 seconds N. and long. Solum thickness is 40 inches or more.
Reaction is strongly acid or very strongly acid, except where limed.
Nodules or fragments of ironstone range from 0 to 25 percent by volume in the A and B horizons. Plinthite ranges from 0 to 5 percent in the Bt horizon. Few to common flakes of mica occur in the lower parts of some pedons. The control section has an average clay content of 35 to 50 percent and an average silt content of less than 20 percent. The A or Ap horizon, where present, has hue of 5YR through 10YR, value of 3 through 6 and chroma of 1 through 5.