[Rockhounds] Earth's Mantle and Crust Are in a Fiery Battle to the Death … of Supercontinents

[Kreigh Tomaszewski]

Earth's hot, gooey center and its cold, hard outer shell are both
responsible for the creeping (and sometimes catastrophic) movement of
tectonic plates. But now new research reveals an intriguing balance of
power — the oozing mantle creates supercontinents while the crust tears
them apart.
https://www.livescience.com/earth-mantle-crust-supercontinents.html