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Progress in Earth and Planetary Science
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: A record of the upper Olduvai geomagnetic polarity transition from a sediment core in southern Yokohama City, Pacific side of central Japan

Fig. 5

Examples of demagnetization diagrams. Typical results from the orthogonal vector diagrams for data obtained during progressive thermal demagnetizations (THD) and alternating-field demagnetizations (AFD) for samples from Core M. a, c Samples from the post-reversal zone. d, e Samples from the transitional zone. b, f Samples from the pre-reversal zone. g Sample from a section yielding weak remanence intensity. The solid and open symbols indicate the projection of the vector endpoints onto the horizontal and vertical planes, respectively

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