2. Question of the Day Question: List 4 pieces of evidence for plate tectonics. (Use your notes!) Answer: ……… Turn In: -Mystery of the Far Flung Fossils -p. 566 CYU’s 1 - 7

3. Types of Plate Boundaries

4. The Earth’s crust Can be classified into two types (continental & oceanic) Is split into smaller pieces called plates Plates sometimes run into each other Magma circulating in the mantle moves them around

5. Mantle Convection Differences in temperature cause material to circulate

6. Plates are Pushed & Pulled

7. Draw This Divergent Plate Boundary

8. Divergent Plate Boundary At a divergent plate boundary, two plates move apart Starts on land as a rift valley Ends up as a mid-ocean ridge (after millions of years)

9. Divergent Boundary Formation

12. Divergent Boundaries Locations: Mid-Atlantic Ridge (Middle of Atlantic Ocean) East African Rift Zone

13. Convergent Plate Boundary

14. Where two plates move together There are 3 types of convergent plate boundaries

15. Converging Oceanic/Continental An oceanic plate and a continental plate meet The denser oceanic plate sinks underneath the continental plate Called subduction Produces volcanoes on the continental plate

16. Draw this Oceanic/ Continental Convergent Boundary

17. Converging Oceanic/Continental Locations –Washington and Oregon (Cascade Mountains) –Andes Mountains (South America)

18. Converging Oceanic/Oceanic Two oceanic plates meet The oceanic plate with older crust is colder so it is –A. Less Dense –B. Denser –C. Thicker –D. Hotter

19. Converging Oceanic/Oceanic Two oceanic plates meet The oceanic plate with older crust is colder so it is –A. Less Dense –B. Denser –C. Thicker –D. Hotter

20. Converging Oceanic/Oceanic It subducts underneath the less dense plate Volcanoes form on the upper plate –Draw this:

21. Converging Oceanic/Oceanic Locations: –Japan –The Philippines

22. Converging Continent/Continent Two continental plates with the same density meet True or False: –Subduction can occur? FALSE! –Volcanoes can form? FALSE! –Mountains form? TRUE!

23. Converging Continent/Continent

24. India Collides with Asia

25. Converging Continent/Continent Locations: –Himalayas (between India and China)

26. Draw This Transform Plate Boundary

27. Transform Boundary Where two plates move past each other Location: California (San Andreas Fault)

28. Hot Spots Occur in the middle of plates (not a plate boundary) Very hot area of mantle (Mantle plume) melts through the crust Stationary (never move) As plate moves, mantle plume will melt several holes in the crust, forming a chain of volcanoes

29. Hot Spots

30. Seamounts and Plate Movement

31. Hot Spot Locations Hawaii Wyoming (Yellowstone National Park)