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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Temporal change in rock-magnetic properties of volcanic ashes ejected during a 1-year eruption event: a case study on the Aso Nakadake 2019–2020 eruption

Fig. 1

Results of thermomagnetic analyses and thermal demagnetizations of a 3-axis composite IRM. a Thermomagnetic analysis in air for the sample of September 14, 2019. The red solid line is the heating curve and the blue dashed line is the cooling curve. b Result of thermomagnetic analyses in air for the sample of October 14, 2019. Legend is the same as a. c Result of thermal demagnetization of a 3-axis composite IRM for the sample of September 14, 2019. Coercivity components of ≤ 0.1 T, 0.1–0.3 T, and 0.3–1 T are shown by circles, triangles, and squares, respectively. d Result of thermal demagnetization of a 3-axis composite IRM for the sample of October 14, 2019

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