The Demagnetization Plane : A new method for presenting stepwise demagnetization

概要

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A new method using a "Demagnetization Plane" is proposed to present the results of stepwise demagnetization of remanent magnetization. This method facilitates quantitative analysis of stepwise demagnetization results, allowing distinction between the multi-components of remanent magnetization. An AF demagnetization test on Pleistocene marine siltstone and sandy siltstone samples from the Boso Peninsula, central Japan, shows that most of the stepwise AF demagnetized vectors align on a plane containing their origin. This plane is called the " Demagnetization Plane" . The spectrum of remanent magnetization for demagnetization steps can be read from the plots on the Demagnetization Plane. Quantitative analysis of the variation of remanent magnetization in Boso sediments shows that the remanent magnetization can be separated into soft, inter-mediate and hard components, using normalization with anhysteretic remanent magnetization.
静岡大学の論文