Abstract
The magnetic minerals of paleosol unit S8 and loess unit L8 in Weman section have been studied. The experiments show that the remanent magnetization of Chinese loess is mainly carried by magnetite, with small amounts of a higher coercivity mineral, presumable hematite, also present. The remanent stability is not affected by maghemite presenting loess and paleosol with instability property. The grain size of the magnitic minerals is dominated by pseudo-single domain (PSD). The coercivity (Hc), remanent coercivity (Hrc) and saturation magnetization (Mr) gradually change from paleosol to loess, which indicates that the change of the -egional climate from the interglacial to glacial stage is a gradual process.
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