Ap
Bw
2BC
2C1
2C2
2C3
0
23
51
66
107
135
165
—
ochric epipedon
cambic horizon
aquic conditions
redox depletions with chroma 2 or less
redox concentrations
lithologic discontinuity
0—23
23—51
23—165
51—165
—-
1
18
225