Plate Tectonics

3. ocean collision/ Older denser oceanic plate us subducted downward into the mantle and a chain of volcanic islands can be formed. What convergent boundary is this?
4. ridge/ What does a divergent sea floor spreading create?
5. floor spreading/ What process does the divergent sea floor spreading use?
7. What process does the convergent oceanic continental use?
9. What does a transform boundary create?
14. continental collision/ Two continental plates collide, mountains usually form because both relatively low in density. What convergent boundary is this?
16. What does a convergent oceanic-continental create?
17. What process does the convergent continent continent use?

1. What does a continent-continent collision create?
2. What boundary is this <-->?
6. What boundary is this -><-?
8. floor spreading/ Two ocean plates pull apart from each other. What divergent boundary is this?
10. valley/ What does a divergent boundary continental-continental create?
11. What process does the transform boundary use?
12. What boundary is this ?
13. continental/ Oceanic crust more dense, so it subducts under the continental crust. What convergent boundary is this?
15. arc/ What does a ocean ocean collision create?