Impacts of Climate Change and Land Use on the Southwestern United States
Erosion in the Rio Puerco: Geography and Processes

Photo of
Sediment Contest

The junctions of the trunks and roots of trees on this terrace lie about 50 cm below the current terrace surface. These junctions were at the terrace surface when the trees began to grow, so 50 cm of sediment has been deposited on the terrace during the trees' lifetime; the ages of the trees have not been determined. During the same period, the margin of the terrace has retreated an unknown distance.

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