The magnetic poles switch about every 300,000 years. On either side of the mid atlanic ridge there are perfect bands of rock with opposite magnetic poles.
so there is a cycle? based on what, do you think?
when is earth next due? seems I’ve read the magnetism is now weakening
It might be interesting to look at basalt deposits, say on the Moon and Mars and see if they can be corellated to terrestrial shifts.
Although there seem no appreciable tectonics on these two bodies, basalts ex/intruded at different times could then be compared to events of similar age on Earth.
If the events are synchronous, maybe this guy’s onto something.
But I personally doubt it.