* Subduction Zones: The most common type of convergent boundary involves one tectonic plate diving beneath another (subduction). The denser plate sinks into the mantle, where it melts and is recycled. This process consumes and destroys crust.

* Continental Collisions: When two continental plates collide, they crumple and buckle, creating mountain ranges like the Himalayas. While no crust is directly subducted, the immense pressure and heat cause rocks to deform and fold, effectively "destroying" the original crustal structure.

In contrast, divergent boundaries create new crust. When plates move apart, magma rises from the mantle to fill the gap, solidifying into new oceanic crust.