An investigation of the rock magnetic properties using stepwise IRM acquisition, thermomagnetic analysis and remanent characteristics, identifies magnetite as the carrier of the main fraction of the remanence for the paleosoil unit S1 in the Dingbian, Weinan, Xifeng loess sections.
对黄土高原定边、西峰、渭南三个剖面中古土壤层S1的定向连续古地磁样品作了详细的岩石磁学和古地磁学研究，均未发现Blake极性事件。