Fig. 2
From: Magnetic petrology of pumice fall deposits of the 1783 eruption of Asama volcano, Japan
Rock magnetic experiments of the pumice fall deposits. a Diagrams showing IRM acquisition curves for two characteristic samples from 2 and 21pu. Both curves can be closely fitted by a single component of a Burr type XII distribution (solid lines) following the protocol of Zhao et al. (2018). The best-fitting parameters are listed in the diagrams. b Results of the 3-axis IRM tests for units 2p and 21pu. The insets on the upper right show the change in MS during stepwise thermal demagnetization. The vertical axis of the inset represents the rate of change of MS. m0: unheated MS, m: MS in each step (c) Day plot for the pumice fall deposits (Day et al. 1977). Mrs: saturation remanence, Ms: saturation magnetization, Hcr: remanent coercive force, Hc: coercive force, SD: single domain, PSD: pseudo-single domain, MD: multidomain