"The Birth and Death of Plate Boundaries:
The following processes can form new plate boundaries:
a. continental rifting
b. continental collisions "
(quoting from notes)
I truly understand how "continental rifting" can form new plate boundaries, but how can "continental collisions" form new plate boundaries?
Furthermore, the above only explains the "birth" part........how can continental rifting and continetal collisions give "death" to plate boundaries?
Awaiting for your favorable reply!