Figure 2. High-resolution chirp seismic-reflection profile and interpretation illustrating stratigraphic features and geometries discussed in the text. Location of the profile is shown in figure 3. Approximate water depth in meters is based on a two-way travel time of 1,500 meters per second. The Holocene transgressive unconformity is marked by a yellow dashed line. Glaciofluvial channels and older Pleistocene sediments are marked by orange dashed lines. Figure modified from Schwab and others (2013).