Figure 9. Isopach map of postsurface PP12 sediments. Contours are in milliseconds two-way traveltime; dashed line indicates shelf edge. Deposition is concentrated in the Prydz Channel Fan with relatively thin subglacial sediment on Four Ladies Bank, several patches of diatom ooze in Svenner Channel, and a morainal bank on the western side of the bay. Elsewhere, post-PP12 sediments are present but are too thin to be resolved on seismic records.