2 ms·
It could be but it absolutely doesn't have to be. Heavier material in the mantle subsiding towards the core could do it just as easily, and there is a lot more
by samatman 6y ago
It could be but it absolutely doesn't have to be.
Heavier material in the mantle subsiding towards the core could do it just as easily, and there is a lot more mass beneath the crust than above it.