How does the type of crust affect convergent boundary movement?
The combination of the types of crust at a convergent boundary affects the movement that will happen at the boundary.
The most common form of convergent boundary is the colliding of an ocean plate with a continental plate. When this occurs the ocean plates is pulled by the downward movement of the convection current and pushed down by the lighter ( less dense) and thicker continental plate overriding the ocean plate. This results in the (fossil brearing?) sedimentary plates being destroyed and melted at the convergent boundary. Other results are usually mountain building, volcanos, and earth quakes.
Sometimes an ocean plate converges with another ocean plate. Both Ocean plates are pulled back down into the mantel resulting in deep ocean trenches. The collision also results in the formation of ocean island arcs, volcanos, and earthquakes.
A less common form of a convergent boundary is when a continental plate collides with another continental plate. This has occurred where India meets Asia. The result is the highest mountains in the world.