Plate Boundaries

1. Plate Boundaries CONVERGENT (and divergent if you missed it yesterday)

2. CONVERGENT DAY • Converge– Collide.  Moving together.

3. Edusmart notes – Divergent(Show Mrs. DeLeon when you’re done)pg. _80_ • Click on Edusmart (desktop) • Click on Effects of Plate Tectonics • Click on Divergent Plate Boundaries • What is a divergent boundary? • Draw a picture of what that looks like. • Where are the majority located? • What happens at a Mid-Ocean Ridge? • What landforms are created by themovement of divergent plates?

4. Edusmart – DIVERGENT Vocabulary pg.__81__ • Click on Edusmart (desktop) • Click on Effects of Plate Tectonics • Click on Vocab-o-saurus (yellow “V” icon on the bottom left) • Go to vocab-o-saurus (V icon) • Write in your journal:

5. Edusmart notes – Convergent(Show Mrs. DeLeon when you’re done)pg. 83 *Click on Edusmart (desktop) *Click on Effects of Plate Tectonics *Click on Convergent Plate Boundaries • What is a convergent boundary? • Draw a picture of what that looks like. • What types of landforms are created by movement of convergent plates (3)? • What are the highest mountain ranges called? • What happens when an oceanic plate convergeswith a continental plate? • Where do most volcanoes form? • Where do you find a lot of subduction zones? • What is the Ring of Fire? Where is it located? • Where is the deepest point on the planet? • (click on more info) What is the world’s largest active volcano?

6. Edusmart – CONVERGENT Vocabulary pg. 84 • Click on Edusmart (desktop) • Click on Effects of Plate Tectonics • Click on Vocab-o-saurus (yellow “V” icon on the bottom left) • Go to vocab-o-saurus (V icon) • Write in your journal:

7. Theseare the questions you will answer in each the boxes.  Answers are shown on the following slides. • 7.  TYPE OF BOUNDARY • 8. Motion at Boundary.  What kinds of plates move? • 9.Motion at Boundary.   What happens to theplates? • 10.Land Feature formed.  What is made here? • 11.Land Feature Formed.  What else is made here? • 12. Actual examples.  Where isthis located in          the Real world        What is the name of the example?

8. As you click through these slides, please read them.  Look at the pictures.  Try to understand the pictures and information about a convergent boundary.

9. Type of Boundary:  Convergent Boundary ocean – ocean with Subduction • Examples:

10. Draw this diagram of ocean to ocean crust second box down on left (cross-section view)

11. Typeof Boundary:   7. Convergent Boundary • Oceanic crust / oceanic crust

12. Motion at Boundary:   Convergent Boundary ocean/ocean with Subduction • 8.  The plates move toward each other - Collide • AND 9.  The older more dense ocean crust subducts (sinks) or goes down below the other less dense crust

13. Convergent Boundary with ocean crust and ocean crust • When 1 subducts, This land feature Forms. TRENCH

14. Convergent Boundary with ocean crust and ocean crust • When 1 plate subducts, the    Land feature formed is an • Island volcano arc (a curved line Volcanic islands)

15. Real world Example of trenches: Marianas Trench, Peru-Chile Trench Real world Example of Island Arcs and trenchs: The Aleutian Islands and Japan

16. These are the questions you will answer in each the boxes.  Answers areshown on the following slides. • 13.Type of Boundary: Convergent(ocean crust and continental crust) • 14.Motion at boundary....  What kinds of plates move? • 15.Motion at boundary... What happens atthe2 plates? • 16.Land Feature Formed...What is made here? • 17.Land Feature Formed....What else is made here? • 18.Actual Examples... Where are these boundaries in the Real world? • What is thename of this example?

17. As you click through these slides, please read them.  Look at the pictures.  Try to understand the pictures and information about a convergent boundary.

18. Draw this in the diagram box (3rd box down on left  (cross-section view)

19. 13.   Type of Boundary:  •  Convergent  with subduction (continental and ocean crust)

20. Motion at Boundary:   Convergent Boundary ocean/ocean with Subduction • 14. The plates move toward each other - Collide • AND 15. The more dense ocean crust subducts (sinks) under the less dense continental crust

21. Convergent boundary with subduction.  Ocean crust and continental crust.  The more dense plate subducts.  What do you see forming? .

22. The land feature formed at the subduction zone is a trench (16) .

23. When  the more dense plate subducts and reaches asthenosphere it begins to melt into magma. It will eventually build up  pressure, until it forms a volcanic mountain range (17). . Plate melts  into magma

24. Cascade Mountains – Oregon & Washington Andes Mountain Range, South America 18. Real world Example of volcanic mountain ranges with a trench

25. 13. Type of Boundary: Convergent (ocean crust and continental crust) • 14. Motion: collide & Subduction (ocean crust is more dense than continental ) 15. Subduction (sinking) & earthquakes • 16. Land Feature: Volcanic Mountains • 17. Land Feature: trench • 18. Actual Examples: Cascade Mountain Range Andes Mountain Range BOTH part of Ring of Fire – around the PACIFIC PLATE

26. https://www.youtube.com/watch?v=rthCyu45umQhttps://www.youtube.com/watch?v=ryrXAGY1dmEhttps://www.youtube.com/watch?v=rthCyu45umQhttps://www.youtube.com/watch?v=ryrXAGY1dmE • Subduction https://www.youtube.com/watch?v=NbDqJy28hBw

27. END SUBDUCTION

28. Coming together - colliding • 19. Type of Boundary? • 20. Motion at boundary? • 21. Land feature formed? • 22. Real world example?

29. Convergent Boundary • continent crust / continent crust convergent = mountain building / uplift. The crust lifts up. Himalayan Mountains

30. Coming together – colliding • 19. Convergent Boundary • 20. moving toward - colliding • 21. Mountains - uplift • 22. Himalayan Mountains