Paleomagnetic measurements demonstrate that the Jijiagou section which is the stratotype one of Baode Stage of the Neogene in China records 12 normal and 11 reversed polarity zones.

古地磁测量表明,近系保德阶界线层型,山西保德冀家沟剖面记了12个正极性段与11个负极性段。

This paper indicates the reasons of establish member and introduces its origin and stratotype section, as well as its extend and correlation.At last, its geological age is discussed.

文阐述了建段，介绍了名称来源、层型剖面、地层延伸与对比，讨论了地质时代。