Uploaded on

 

More in: Automotive , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
1,594
On Slideshare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
6
Comments
0
Likes
1

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. The plates are moving at a very slow rate of about one to ten centimeters per year. In areas plates are moving together and others are moving apart.
  • 2. http://www.youtube.com/watch?v=0mW Qs1_L3fA
  • 3. Click here for a hyperlink to an animation of convection
  • 4. A convergent boundary is where two plates come together, or converge. The result of the plates hitting together is called a collision.
  • 5. a. Continental crust to continental b. Continental crust to oceanic c. Oceanic crust to oceanic
  • 6. a. Continental crust to continental crust Before collision Example: India-Asia (Himalayas) After collision from: http://www.geo.lsa.umich.edu/~crlb/COURSES/2
  • 7. Eurasian plate Indian plate Indian plate (continental crust) running into Eurasian plate (continental crust)
  • 8. Folded mountains – notice the rock layers
  • 9. SUBDUCTION
  • 10. The process by which the ocean floor sinks beneath a deepocean trench and back into the mantle is called
  • 11. Oceanic crust is MORE DENSE than Continental!
  • 12. • Because one plate gets pushed under another, it is called subduction. • This is where volcanoes and trenches form! all from: http://www.geo.lsa.umich.edu/~crlb/COURSES/270
  • 13. Volcanoes form where a convergent boundary occurs between oceanic crust and continental crust.
  • 14. South American plate (continental crust) running into Nazca plate (oceanic crust)
  • 15. SUBDUCTION
  • 16. Volcanoes also form where a convergent boundary occurs between oceanic crust and oceanic crust.
  • 17. Aleutian islands of Alaska are volcanoes formed by oceanic crust converging with oceanic crust
  • 18. Following volcanic islands in the Pacific Ocean can show us where oceanic crust is being subducted by oceanic crust.
  • 19. Here is an great link for seeing where each type of boundary is located.