Adrian muck on a less than 1 percent slope under marsh vegetation. The difference between mean summer and mean winter soil temperature is 17 to 25 degrees F or more. The depth to the sandy C horizon ranges from 16 to 51 inches. The organic materials are derived primarily from herbaceous plants, but some layers contain as much as 50 percent material of wood origin. The surface tier has hue of 10YR to 5YR, or is neutral, value of 2, and chroma of 0 to 3.
Reaction ranges from strongly acid to neutral.
The subsurface and bottom tiers have hue of 10YR to 5YR, or are neutral, value of 2 or 3, and chroma of 0 to 3. In some pedons a sedimentary peat layer 1 to 2 inches thick is present above the C horizon. Reaction ranges from strongly acid to neutral. The C or Cg horizon has hue of 5YR to 5Y or is neutral, value of 2 to 6, and chroma of 0 to 4. It is sand, coarse sand, fine sand, loamy sand, or loamy sand and their gravelly or very gravelly analogues.