On the basis of CaO/MgO,K2O/Na2O,Al2O3/Na2O,MnO/Al2O3,CIA and A-CN-K diagram,the comparison results show that the intensity of chemical weathering in paleosols is very similar to the recent cinnamon soils in North China.

• 用K2O/Na2O、Al2O3/Na2O、MnO/Al2O3、CIA及A-CN-K图解与华北现代褐土作对比分析,发现它们的化学风化特征极为相似;