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层型,山西保德冀家沟剖面记录了12个正极性段与11个负极性段。