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cryoturbation .
As a result of cryoturbation the horizons are distorted
and intrusions of organic materials, wood fragments and B
materials may be found throughout the profile .
The horizons affected
by cryoturbation are designated by "y" .
These soils are associated
with hummocks in Zones 1, 2 and 3 . A representative profile of cryoturbed
Cryic Gleyed Orthic Eutric Brunisol developed on lacustrine
sediment is described as follows :
Profile ZT15 Cryic Gleyed Orthic Eutric Brunisol* (Appendix I : Table 18)
L-H- 5 to 0 cm, very dark brown (l0YR 2/2, moist), litter of black
spruce, Ledum , mosses and lichens ; extremely acid ; clear,
wavy boundary .
Bmg- 0 to 10 cm, very dark grayish brown (l0YR 3/2, moist),
silt loam ; medium granular ; slightly sticky, slightly
plastic ; friable when moist, hard when dry ; neutral ; clear,
wavy boundary .
Cgy- 10 to 50 cm, dark gray (l0YR 4/1, moist), silt loam ;
amorphous ; extremely cryoturbed ; intrusions of organic
material (L-H), organic smears and stains ; slightly sticky
and slightly plastic ; friable when moist, hard when dry ;
mildly alkaline ; abrupt, wavy boundary .
Cg- 50 to 63 cm, gray (l0YR 5/1, moist), silt loam ; amorphous ;
slightly sticky and slightly plastic ; friable when moist,
hard when dry ; mildly alkaline ; abrupt, smooth boundary .
Cz- 63+ cm, frozen silt loam .
Dystric-
Brunisols
These soils have the general characteristics of the Brunisols ;
they have organic surface horizons (L-H) over Bm horizons in which the
base saturation is usually 65 to 100 percent and the pH usually 5 .5
or lower . These soils may also have weakly expressed (Aej) or strongly
Influenced by cryoturbation .