I saw that “flash-frozen” notion on a nature show on TV once. Narrated by Charleton Heston. Fascinating. The explanation (for how a wooly mammoth died by freezing to death within minutes of dining on fresh daisies) was a sudden shift in the complete outer crust of Earth. The theory was that over time one pole or the other will become so large and heavy with ice build-up that the outer surface of the planet shifts on the molten core. So,....the tropics might suddenly become located at a pole, or some such.......
was a sudden shift in the complete outer crust of Earth.
Similar to the theory in “2012” the movie.
“Paths of the Pole” by Charles Hapgood.