在南大西洋离开巴西海岸的某一地区,磁场的屏蔽效应不是很圆,而是像壶穴,科学家们解释这是由于地球地理中心的磁场中心发生了古怪的偏离(偏离280公里),以及磁场和地球地理磁极间发生偏离。
南大西洋正磁异常和非洲负磁异常是磁异常中心位置变化最快的两个磁异常。
The location changes of magnetic anomalycentre of African and Southern Atlantic anomaly are the fastest in the all of themagnetic anomalies.
两种证据间不断变化着的关系说明了异常磁力碎片一直以来的增长都是偏离非洲东南部却临近于南大西洋。
The changing relationship between the two shows that patches of abnormal magnetism have been growing off south-east Africa and in the south Atlantic.
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