Active Tectonics of the Devils Mountain Fault and Related Structures, Northern Puget Lowland and Eastern Strait of Juan de Fuca Region, Pacific Northwest

By Samuel Y. Johnson, Shawn V. Dadisman, David C. Mosher, Richard J. Blakely, and Jonathan R. Childs

Figure 35. Deformation and facies in upper Pleistocene deposits in Utsalady Point fault zone at Utsalady Point, Camano Island (r in figure 27; figure 34). A, Folded (24° dip) and fractured ≈21-ka laminated sandy silt facies. Staff is 1.5 m long. B, Fault (dashed white line) cutting silty mud, sand, and gravel (line drawing in figure 34). C, Shear fabric along fault shown in B. Bands on shovel handle are 10 cm wide. D. Large irregular sandy silt intrusion (SI, dashed white line shows boundaries) and "bed" of sand, silt, and gravel mixed by extensive liquefaction and soft-sediment deformation (LB).