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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Paleomagnetic direction and paleointensity variations during the Matuyama–Brunhes polarity transition from a marine succession in the Chiba composite section of the Boso Peninsula, central Japan

Fig. 7

Examples of stepwise a, d alternating field demagnetization (AFD); b, e thermal demagnetization (ThD); and c, f progressive AFD after ThD at 300 °C. The filled and open circles correspond to projections onto the horizontal and vertical planes, respectively. The data points that likely indicate secondary components are shown in gray in (f)

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