After further evaluation, it was observed that all four Chile margin sites contained a higher degree of overprinting with the use of the APCT tool even after demagnetization at 25 mT (our self-imposed shipboard demagnetization limit). This effect is noticeable in Figure F4, in which the average initial NRM intensity (0 mT) and AF demagnetized inclination (25 mT) per core from one hole at Sites 1232-1235 is plotted. Initial inclinations at all four sites were near +80°, completely masking the original NRM. For Sites 1232, 1234, and 1235, the demagnetized inclinations (25 mT) still had values that were far from the expected direction of about -55°. For Site 1233, only a few cores were significantly overprinted after demagnetization at 25 mT and, for these, the overprint, though incompletely removed, appears to be minor and should be able to be removed during shore-based research.