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Plate Tectonics WS

Plate Tectonics WS. Eric Angat. 1. Who is Alfred Wegener?. Alfred Wegener proposed the Continental drift theory . He stated that continents were moving but could he not explain what makes them move. No one believed him. Lauresia. Pangaea. Gondwanaland.

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Plate Tectonics WS

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  1. Plate Tectonics WS Eric Angat

  2. 1. Who is Alfred Wegener? Alfred Wegener proposed the Continental drift theory. He stated that continents were moving but could he not explain what makes them move. No one believed him. Lauresia Pangaea Gondwanaland

  3. 2. What happened to the supercontinent Pangaea? Lauresia Pangaea Gondwanaland Jurassic Cretaceous Lauresia became North America, Europe, and Asia Present day Seven continents

  4. 3. How did Alfred Wegener use FOSSILS to explain the Continental Drift theory? http://wiki.answers.com/Q/What_are_the_continents_that_made_up_laurasia#slide=2 Fossil A Fossil B Fossil B Fossil A Fossil B How did the animals cross lands if the lands were not connected? Fossil B

  5. 4. How did Alfred Wegener use the CONTINENTS to explain the Continental Drift theory? Climate in this region was similar. The continents fit together like a puzzle.

  6. 5. How did Alfred Wegener use ROCKS to explain the Continental Drift theory? United States Appalachian Mountain Africa Africa The Appalachian mountains to the shores were used to be part of Africa. And the rocks matched!

  7. 6. What causes the continents to move? Continents move because of the convection current in the mantle. convection Earth’s core

  8. 7. What is convection current? These circular currents in the asthenosphere are called convection currents.Hot magma goes up and cooler magma goes down.

  9. 8. What are the different types of plate boundaries? divergent • Rift valley in Africa • Sea floor spreading in the Atlantic ocean • Volcanic activities convergent Trench, mountain ranges, volcanic activities, subduction zones Transform Horizontal Shear San Andreas fault, no volcanic activity

  10. 9. What type of boundary is the San Andreas fault? Transform or Shear boundary This image shows San Andreas Lake and Crystal Springs reservoir from the air, looking SouthEastfrom HERE. The highway paralleling the lakes to the left is Interstate 280, ``the most beautiful urban highway in the United States''. (And it is indeed very scenic.)

  11. 10. Convergent - Oceanic-continental boundary forms_________________. volcanoes trench subduction

  12. 11. Convergent – Continental -continental boundary forms_________________. Mountain range subduction

  13. Convergent Boundary

  14. 12. Convergent - Oceanic-oceanic boundary forms_________________. volcanoes trench subduction

  15. 13. How is Earth affected by divergent boundaries? Splitting Africa Widening Atlantic Ocean

  16. Old Crust is farther from the ridge. Young Crust is nearer to the ridge.

  17. 14. What kind of boundary is a rift valley? Rift Valley is a divergent boundary

  18. 15. Where do most earthquakes happen? Most EARTHQUAKES happen anywhere around the Pacific Ring of Fire!

  19. What type of landform is created when two continental plates collide? volcano folded mountain trench mid-ocean ridge

  20. 17. Which landform is not formed from a convergent boundary? volcano folded mountain trench mid-ocean ridge

  21. 18. The mid-ocean ridge in the Atlantic ocean is what type of plate boundary? convergent Divergent horizontal shear transform

  22. 19. When earthquakes happen, what is the location directly above the focus? Epicenter fault

  23. Ridge Ridge push Ridge push convection Rocks are melted and recycled into new rocks. Rocks are melted and recycled into new rocks.

  24. 20. Lithospheric ridge push causes plates to undergo___. Subduction and recycled into new rocks. Division of plates.

  25. 21. What type of plate boundary causes the earthquakes in California? Transform boundary or shear stress B. divergent boundary or rift valley.

  26. Matching type: What type of plate boundary is responsible for the following landforms. • convergent boundary • divergent boundary • Transform or Sliding boundary • _______22. Island arc • _______23. Volcanic mountain range • _______24. Marianas trench • _______25. Mountain range • _______26. Mid ocean ridge • _______27. San Andreas fault convergent convergent convergent convergent divergent transform

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