1. Robert J. Lillie Parks and Plates ©2005 Robert J. Lillie Yellowstone National Park, Wyoming PARKS and PLATES: Chapter 1: Plate Tectonics

2. Mike Green Denali National Park, Alaska Many national parks, monuments, and seashores were set aside to preserve outstanding examples of geological features and processes. Parks and Plates ©2005 Robert J. Lillie

3. PLATE TECTONICS Tectonics: From the Greek “tecton” builder “architect” The study of large features on Earth’s surface and the processes that formed them. Parks and Plates ©2005 Robert J. Lillie

4. Large features: – continents – ocean basins – mountain ranges and processes: – earthquakes – volcanic eruptions due to movement of plates of Earth’s outer shell. Parks and Plates ©2005 Robert J. Lillie “PLATE TECTONICS”

5. Cracked Egg Shell! Parks and Plates ©2005 Robert J. Lillie

6. Parks and Plates ©2005 Robert J. Lillie

7. Parks and Plates ©2005 Robert J. Lillie

8. Parks and Plates ©2005 Robert J. Lillie

9. Parks and Plates ©2005 Robert J. Lillie

10. Parks and Plates ©2005 Robert J. Lillie

11. Parks and Plates ©2005 Robert J. Lillie Depths in Miles

12. Parks and Plates ©2005 Robert J. Lillie Depths in Kilometers

13. LITHOSPHERE –rigid outer shell –crust and upper mantle (~ 50 to 200 km thick) –somewhat brittle, breakable –cold (like butter out of fridge) ASTHENOSPHERE –warmer, plastic layer under lithosphere –mantle from ~ 150 to 700 km –squishy, plastic –warm (like softened butter) LOWER MANTLE –solid –~700 to 2900 km OUTER CORE –liquid INNER CORE –solid Interior of Earth by STRENGTH Parks and Plates ©2005 Robert J. Lillie

14. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

15. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

16. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

17. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

18. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

19. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

20. Parks and Plates ©2005 Robert J. Lillie Oreo ® Cookie

21. Robert J. Lillie Parks and Plates ©2005 Robert J. Lillie

22. Oreo ® Psycho-Personality Test www.superkids.com/aweb/pages/humor/050199.sht www.superkids.com/aweb/pages/humor/050199.sht Psychologists have discovered that the manner in which people eat Oreo ® cookies provides great insight into their personalities. Choose which method best describes your favorite method of eating Oreos: 1. The whole thing at once. 2. One bite at a time. 3. Slow and methodical nibbles examining the results of each bite afterwards. 4. In little feverous nibbles. 5. Dunked in some liquid (milk, coffee …..) 6. Twisted apart, the inside, then the cookie. 7. Twisted apart, the inside, and toss the cookie. 8. Just the cookie, not the inside. 9. I just like to lick them, not eat them. 10. I don’t have a favorite way because I don’t like Oreos. Parks and Plates ©2005 Robert J. Lillie

23. 6. Twisted apart, the inside, then the cookie. You have a highly curious nature. You take pleasure in breaking things apart to find out how they work, though you’re not always able to put them back together, so you destroy all the evidence of your activities. You deny your involvement when things go wrong. You are a compulsive liar and exhibit deviant, if not criminal, behavior. Parks and Plates ©2005 Robert J. Lillie

24. Robert J. Lillie Parks and Plates, ©2005 Robert J. Lillie Sliding Plate over Asthenosphere

25. Divergent Plate Boundary Parks and Plates ©2005 Robert J. Lillie Robert J. Lillie

26. Types of Plate Boundaries Parks and Plates ©2005 Robert J. Lillie

27. Robert J. Lillie Convergent Plate Boundary Parks and Plates ©2005 Robert J. Lillie

28. Types of Plate Boundaries Parks and Plates ©2005 Robert J. Lillie Earth is a Giant Recycling Machine! Divergent Plate Boundaries: – Plates created! Convergent Plate Boundaries: – Plates recycled!

29. Transform Plate Boundary Parks and Plates ©2005 Robert J. Lillie Robert J. Lillie

30. Types of Plate Boundaries Parks and Plates ©2005 Robert J. Lillie

31. Hotspot Parks and Plates ©2005 Robert J. Lillie Robert J. Lillie

32. PLATE BOUNDARIES Divergent: – Plates move away from one another. – Lithosphere created. Convergent: – Plates move toward one another. – Lithosphere destroyed. Transform: – Plates slide past one another. – Lithosphere neither created nor destroyed. (Hotspot): – Plate rides over plume of hot mantle. – Important, but NOT a plate boundary. Parks and Plates ©2005 Robert J. Lillie

33. Parks and Plates ©2005 Robert J. Lillie