Excellent. I’m sure the authors of the “Cycles...” book (message 50 in this thread) would love to take a look at it.
Last week, I was attending a training session and our
instructor showed a NatGEO film about magnetic pole
reversal and it showed areas of the south atlantic that
have already shifted and other areas or islands of pole
wandering. It sometimes happens real fast, but others
take more time and fluctuate.