which plate boundaries does crust form
1 Divergent boundaries -- where new crust is generated as the plates pull away from each other. 2  Convergent boundaries -- where crust is destroyed as one plate dives under another. 3  Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.here are basically three different types of plate boundaries (divergent, convergent, transform), and a fourth type (boundary zones) is sometimes designated when it is difficult to define a clear boundary: 1  Divergent boundaries -- where new crust is generated as the plates pull away from each other.