Is it just a huge slab that somehow got to the surface, or does that mean that there’s a gap in the crust and the mantle is poking up?
I’m having trouble understanding. Apparently there is an area called the Tablelands at Gros Morne National Park, where you can walk on the mantle of the Earth. What exactly does that mean?
You can also do that on Macquarie Island (Tasmania, Australia).
It’s actually much cheaper there because the penguins only pay the base level of 10% tariffs.
It means that the Tablelands is made up of peridotite, which is made in the mantle. Wikipedia says, “Peridotite is derived from Earth’s mantle, either as solid blocks and fragments, or as crystals accumulated from magmas that formed in the mantle.”
The first one.
No. You can walk on rock that used to be part of the mantle, way in the past. This is also not the only place in the world you can do this. Take your pick.