When tectonic plates move, the rocky crust may be forced deeper into Earth. The lower the rocky crust is buried inside Earth, the greater the temperature and pressure it is exposed to.
Over time, water, wind, temperature changes, and ice may break rock into smaller pieces called sediment. Sediment is then transported through erosion and deposited to a new location.
When the rocky crust of Earth is pushed deep into the mantle, it will melt back into molten magma. As the magma rises up through the lithosphere, it may cool inside Earth or erupt as lava and cool on the surface of Earth, creating mountains.
As the layers of sediment are deposited in a new location, they build on top of one another. The lower layers get compacted together from the weight of the layers above.
As the tectonic plates move, the lower rocky crust may be lifted up and exposed to the exterior of Earth. This builds up new rock and changes the rocky structure of Earth.