When plate motion compresses part of the crust, it creates a convergent plate boundary. This can lead to a variety of landforms over millions of years, depending on the types of plates involved and the specific conditions. Here are some of the most common:

1. Fold Mountains:

* Mechanism: Compression forces the crust to buckle and fold, creating uplifted regions.

* Examples: The Himalayas, the Alps, the Andes.

* Features: High peaks, steep slopes, valleys, and often deep canyons.

2. Subduction Zones and Volcanic Arcs:

* Mechanism: One denser oceanic plate slides beneath another plate (either oceanic or continental). This process can lead to melting in the mantle and the rise of magma, which erupts to form volcanoes.

* Examples: The Ring of Fire around the Pacific Ocean, the Andes Mountains.

* Features: Volcanoes, trenches (deep depressions in the ocean floor), volcanic islands.

3. Thrust Faults:

* Mechanism: Compression causes rocks to break and slide over each other along inclined planes. This creates uplifted blocks of rock.

* Examples: The Rocky Mountains, the Appalachian Mountains.

* Features: Steep slopes, often with exposed rock layers, and sometimes uplifted plateaus.

4. Plateaus:

* Mechanism: Compression can uplift large areas of land, creating high, relatively flat surfaces.

* Examples: The Tibetan Plateau, the Colorado Plateau.

* Features: Wide, high elevations, often with canyons and rivers.

5. Oceanic Trenches:

* Mechanism: When an oceanic plate subducts beneath another plate, the point of contact can form a deep trench.

* Examples: The Mariana Trench, the Peru-Chile Trench.

* Features: Deep, narrow depressions in the ocean floor.

Note: The specific landforms formed will depend on factors like the speed of plate movement, the angle of convergence, and the types of rocks involved.