Figure F44. Downhole magnetization intensity after 20 mT demagnetization for J-Anomaly Ridge Sites U1403–U1406. Interpreted magnetostratigraphies: black = normal, white = reversed chron, gray = unidentified. Small circles = pass-through superconducting rock magnetometer measurement data after 20 mT alternating field demagnetization from archive-half sections. PCA = direction determined by principal component analysis (Kirschvink, 1980).
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