NavList:

I am not a geologist, but I have read that the Earth’s magnetic field is affected by the flow of molten iron below the Earth’s crust.  

There are apparently upwellings and downwellings of molten iron, not dissimilar from certain ocean currents. 

Unlike tides, the flows of molten iron deep within the Earth are slow, irregular, and difficult to predict accurately based on our current understanding of this phenomenon.  

The Earth may be a giant magnet, as we learned in school, but its magnetic field is not symmetrical (north/south) due to the irregular “sloshing around” of molten ferrous metal many miles beneath the surface. 

JMcD

Thanks, Jackson, the interesting detail I've learned in the article was that the southern magnetic pole does not reflect all the movements of the northern pole. (I thought it was mirroring it).

Regards,

Tony

60°N 30°E

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