Dru, would you care to explain this to us non-geologists?
If it were not for the insulating effect, the continental plate above would be hotter, would it not? How would this lead to a greater elevation? Is it simply that warm rock is less dense and therefore would be more bouyant?
buy the fucking magazine like i did, cheapskate!
or get mckillop drunk
you forgot that warm rock expands too.