Figure F9. Isopach map of postsurface PP12 sediments. Contours are in milliseconds two-way traveltime; dashed line = the 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.