When pieces of continental crust collide at a convergent boundary, it's called continental-continental convergence.

This type of collision leads to the formation of:

* Mountain ranges: The immense pressure from the colliding plates forces the land upwards, creating towering mountain ranges like the Himalayas.

* Plateaus: The uplifted land can also form vast, high-elevation plateaus like the Tibetan Plateau.

* Faulting and earthquakes: The immense pressure and friction cause the crust to break and shift, leading to earthquakes and fault lines.

It's important to remember that while the term "continental-continental convergence" describes the general process, the specific features and their formation vary depending on the characteristics of the colliding plates and the tectonic forces involved.