Thank you for the link. I think I will have to read this more than one time to get a better grasp of what has happened and appears to continue to take place.
I just found a nice reference in the book, “A Crack in the Edge of the World” (about the San Francisco earthquake of 1906) by Simon Winchester (p. 70-71) about the magnetic reversals. I think it is in one of his other books, about the mapping of the field reversals across the sea floor that show the seafloor spreading (it is leaving “stripes” across the ocean floor). Go to your library and grab a few Simon Winchester books (”Krakatoa”, “The Map that Changed the World”, and “The Crack....”). He explains plate tectonics really simply. Another book I’ve loved is John McPhee’s “Annals of the Former World” which talks about island chains like Japan squishing into North America and basically creating California.