1. Plate Tectonics Chapter 16

2. Continental Drift _________ proposed the theory that the crustal plates are moving over the mantle. This was supported by fossil and rock type evidence; also matching of coastline shapes. Wegener

3. Convection Currents The force responsible for plate movement is __________.

4. Plate Boundaries The following two slides show maps of the current major plate boundaries and their relative motions. You should be able to describe various landforms created by different plate movements.

7. Plate Boundaries Divergent Boundary – moving _____ Convergent Boundary – moving ________ Transform Fault Boundary – moving ________________________ apart together sideways past each other

8. Divergent boundary of two continental plates. Creates a __________. Example: _____________ rift valley East African Rift

14. Convergent boundary of two oceanic plates. Creates an ________ and a _____. Example: _____ island arctrenchJapan

16. Convergent boundary of an oceanic plate and a continental plate. Forms a _______ mountain range and a ______. Examples: _______ or _______ Mts volcanic trench Cascades Andes

19. Convergent boundary of two continental plates. Forms a ______ mountain range. Examples: ___________, Alps, ______________ folded Himalayas Appalachians

22. Trivia… What’s the tallest mountain in the world?

25. Transform-fault boundary where the North American and Pacific plates are moving ____ each other. Example: ________________ in California past San Andreas Fault

26. Plate Boundaries Review Places where plates move apart are called _____________ boundaries. When continental plates diverge a ___________ is formed. When two oceanic plates converge what is created? _________________ The Appalachians formed mainly from continental plate collisions and therefore are a __________ mountain range. The force moving the plates is ____________. Convection currents divergent rift valley an island arc and a trench folded

27. How did Hawaii form????

29. Hot spot volcanicvolcanic regions thought to be fed by underlying mantle that is abnormally hot compared with the mantle elsewheremantle

30. Yellowstone National Park Hot Spot

40. Cinder-Cone Volcano

41. Composite Volcanoes… blow their tops!

42. Shield volcano