Figure F1. The effect of advanced piston corer temperature (APCT) tool usage on the sediment NRM of Hole 1235A. Unusually large magnetic overprints, observed in Cores 202-1235A-3H and 6H when the APCT tool was used (shaded interval), are indicated by higher than normal initial NRM intensities and AF demagnetized inclinations (25 mT) that deviate significantly from the expected values at this site (-55°). Note the steep positive inclination (0 mT) prior to demagnetization. The residual positive inclination (25 mT) documents that the overprint could not be effectively removed through limited AF demagnetization.