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Theory, observation and application of the geomagnetic polarity reversal and secular variation, magnetostratigraphy;
地磁场倒转和长期变的理论、观测和应用以及磁性地层学;
According to observation data at geomagnetic stations in Hebei Province from 1986 to 2005, we sum up and analyze the laws of the geomagnetic secular variation in this paper.
利用河北省地磁台1986 ~ 2005年的地磁观测资料,对该地区地磁场长期变化规律进行总结分析。
With geomagnetic field model records, several kinds of secular variation of geomagnetic dipole moment and the position of the geomagnetic North Pole during the year 0 ~ 2000 a.
利用地磁场模型资料,计算和分析了公元0 ~ 2000年的地磁场偶极子磁矩和地磁北极位置的长期变化。
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