1.(used with a sing. verb)A theory that explains the global distribution of geological phenomena such as seismicity, volcanism, continental drift, and mountain building in terms of the formation, destruction, movement, and interaction of the earth's lithospheric plates. ...
Discover the pieces of the Earth's crust known as tectonic plates. Explore the layers of the Earth, how tectonic plates move by convection currents in the mantle, the Plate Tectonic theory, and the landforms created by plate tectonics.
Seismic belt, narrow geographic zone on the Earth’s surface along which most earthquake activity occurs. The outermost layer of the Earth (lithosphere) is made up of several large tectonic plates. The edges where these plates move against one another ar