A study of anisotropy of magnetic susceptibility in artificial deposits
prepared by sediment discharge experiment and in mountain stream deposits
Takashi ITO and Hideo SAKAI
Abstract
In the artificial deposits prepared by experimental sediment discharge at Tateyama
Caldera Sabo Museum, the maximum principal axis, `Kmax', of anisotropy of magnetic
susceptibility (AMS), was found to be parallel to the current direction. The results
indicated that the magnetic particles in the deposits were arranged in the current
direction. This was concordant with observation under the reflecting microscope
on the polished block of the deposit. The AMS study was also applied on the mountain
stream deposits of the Kiso Mountains. The Kmax of AMS was parallel to the mountain
stream direction which transported the deposits. The AMS method seems to be useful
in the study of transportation and depositional process of sediment discharge.