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Transition Floodplain-Terraces
Photo 4 of 5. Transition between active Schuylkill River floodplain and ancient terraces. Human transported materials (0-20 cm) over stratified anthracite coal/quartz alluvium (30-55 cm) indicate land use changes since the early 1900s. The lower buried soil has a thick Ap horizon (60-90 cm) over Bw horizons indicating past agriculture on the floodplain before industrial coal mining deposited waste over top of this field.
Transition Floodplain-Terraces
Photo 4 of 5. Transition between active Schuylkill River floodplain and ancient terraces. Human transported materials (0-20 cm) over stratified anthracite coal/quartz alluvium (30-55 cm) indicate land use changes since the early 1900s. The lower buried soil has a thick Ap horizon (60-90 cm) over Bw horizons indicating past agriculture on the floodplain before industrial coal mining deposited waste over top of this field.