This reversal process can be seen in the pale magnetic record, locked into rocks of the ocean floor and in some lava flows. 这个倒转过程能在古地磁记录中看到，这些记录被锁定在海底的岩石里和一些熔岩流中。
Data on the Earth's ancient magnetic field are available from archeomagnetic and paleomagnetic measurements. 有关地球古磁场的数据是通过古地磁粗额测量而得来的。
