Magnetic anomaly profiles in the Palau Basin. (a) The north, (b) east, and (c) vertical component anomalies and (d) total-force anomalies. Magnetic boundary strikes calculated from the three-component anomalies are shown on (c) (red bar). Shaded relief topography from the ETOPO1 grid and swath bathymetry data along survey lines are superimposed. Color scale is the same as Figure 4.