stratotype

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,中国新近系保德阶界线,山西保德冀家沟剖面记录12极性段与11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.

文中阐建段的理由，介绍名称来、剖面、地的延伸与对比，讨论地质时代。