Page 602, IFD, 2b, Soil Taxonomy 2nd edition
Is the required absolute increase between the eluvial and illuvial
horizons, or within the illuvial horizon??
Our pedon:
A2 6-28cm sil 15%c, clear wavy boundary
Bt 28-50cm sicl 38%c, gradual wavy boundary
Btss 50-85cm c 50%c, clear irregular boundary
BCt 85-89cm cl 30%c, clear irregular boundary