Describe The Theory Of Plate Tectonics. Plate tectonics (from the late latin tectonicus, from the greek: There are around 13 tectonic.
Plate tectonics is the theory that earth’s outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core. We can credit alfred wegener (figure 4.1.1) as the originator of this idea. The plates act like a hard and rigid shell.