On the planet, new crust is formed at diverging plate margins and destroyed at subduction zones. Continental crust may be more than 3 billion years old, but oceanic crust is less than 200 million years old. The recycling of oceanic crust takes place between mid-ocean ridges (where it is ...
Geologists called this type of plate movement subduction. It occurs when an oceanic plate moves into another oceanic plate or into a continental (land) plate. Because the oceanic plate is dense, it slides under the other plate. As it travels downward into the mantle, high temperature and ...
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The downward movement of blocks of material on a curved surface. Subduction zone: A region where two plates come together and the edge of one plate slides beneath the other. Uplift: In geology, the slow upward movement of large parts of stable areas of Earth's crust. Forces...