Other post-glacial parent materials consists of:
Organic deposits (Organic soils or Histosols, are soils with more than 16 inches of organic horizons) which are found in swamps, bogs, tidal marshes, fens, and along drainageways.
Alluvial Deposits - material deposited in modern day floodplains, adjacent to major rivers and streams. Alluvial soils are characterized by little soil development (most are Entisols), an irregular decrease in organic carbon with depth, and landscape position.
Eolian dune deposits - wind blown deposits adjacent to oceans.
Anthro-transported material - material deposited or excavated by human activity.
END Presentation: Click for Soil Color or Soil Horizons