Atlantic Ocean to Disappear in 200 Million Years?
A new map of the seafloor off the coast of Iberiaâ€”the region of Europe that includes Portugal and Spainâ€”has revealed what could be the birth of a new subduction zone.
Subduction zones happen when tectonic platesâ€”the large rock slabs that make up the Earth’s crustâ€”crash into one another. The edge of the heavier plate slides, or subducts, below the lighter plate. It then melts back into the Earth’s mantleâ€”the layer just below the crust.