Greenland dominated headlines after Donald Trump's wish.The amazing thing is that any Country that had, has or will have any sort of volcanic activity will be rich in all sorts of (REE) rare earth elements and heavy metals.
The USA has a vast area of such, "Yellowstone National Park" and in New Zealand there is a similar one, BUT, would you test the fate of the earth to pop a pimple that might explode ?
In New Zealand the locals say the area is like living on a rice pudding with a thin crust on top.
https://stockhead.com.au/resources/trumps-wooing-of-greenland-shines-spotlight-on-awakening-resource-giant/