Figure 2. Partial cross-section of Puget lowland thrust sheet (from Pratt et al. [1997]). Highlighted gray box is the region where the velocity and density models were developed. Crescent Formation is assumed to be basement rock; Tertiary and Quaternary sedimentary deposits overlie the Crescent. Seattle fault is interpreted to dip at 20°S; overlying sub-thrusts interpreted at dips of 50-55°S.
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