Geoscience Reference
In-Depth Information
A
B
Figure 5-2.
Alluvial soil formed by periodic overbank l ooding in a closed depression, Cheyenne Bottoms, central
Kansas, United States. The soil consists mainly of loam, a mixture of i ne sand, silt and clay. A. Long proi le is
∼
5 m
∼
across. Note numerous vertical structures in lower portion of proi le. B. Proi le detail; tape measure is
1.3 m.
Organic-rich material from the A and B horizons has migrated downward in probable prairie-dog burrows (*) into
the C horizon. Photos by J.S. Aber.
