Easter Island’s volcanic history suggests Earth’s mantle behaves quite differently than previously assumed

Geography textbooks describe the Earth’s mantle beneath its plates as a well-mixed viscous rock that moves along with those plates like a conveyor belt. But that idea, first set out some 100 years ago, is surprisingly difficult to prove. A mysterious find on Easter Island, investigated by Cuban, Colombian and Utrecht geologists among others, suggests that the Earth’s mantle seems to behave quite differently.

This post was originally published on this site

The Owl Picks