How did it get perma-frosted? That's interesting, in itself.
Did Guam tip over?
Many academics will tell you that when archaeological discoveries are made that don’t fit the contemporary narrative they are either ignored, sh*tcanned or ridiculed. The Chinese have been quite good at standing up to the ridicule and positing some interesting discoveries that question our understanding of the past.
Immanuel Velikovsky explains this in an intriguing and controversial book, Worlds in Collision. Here is a Readers Digest version via Wiki.
https://en.wikipedia.org/wiki/Worlds_in_Collision
http://www.icr.org/article/rapid-surging-glacial-ice-lobes
http://www.icr.org/article/precipitation-hot-mid-ocean-ridges
http://www.icr.org/article/hypercanes-genesis-flood