Geoscience Reference
In-Depth Information
Fig. 11.1
Soil chronosequences of the Transantarctic Mountains (Bockheim and Wilson
1993
)
soluble salts (to a depth of 70 cm) was greatest in xerous soils, followed by
ultraxerous soils, with the least amounts in subxerous soils along the coast
(Fig.
11.3
).
Changes in morphological soil properties with time are readily visible in the chro-
nosequence from lower Wright Valley (Fig.
11.4
). The fi gure depicts soils on a Late
Glacial Maximum surface (A), mid to late Quaternary (H1) aged hummocky drift
(B), early Quaternary (Wright) drift (C), Pliocene-aged Valkyrie drift (D), Pliocene
or older Alpine IV drift (E), and a strongly weathered soil below the white 3.9 Ma
