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Fig. 8 Thickness map illustrating the thickness of sediment overlying the artifact layer. Contour
interval is 0.2 m or 20 cm. The thickness map shows that the sediment overlying the artifact layer
exhibits a lensoid-shaped geometry
The sediment overlying the artifact layer is interpreted as representing deposition
by fluvial processes. However, the artifact layer itself is not a result of fluvial
deposition, but rather is a cultural layer that was developed on top of an erosion
surface produced by deflation and sheet flooding events. There are several lines of
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