Structure and Motion - PowerPoint PPT Presentation

1 / 18
About This Presentation
Title:

Structure and Motion

Description:

Structure and Motion Plate Tectonics Video NOAA: Plate Tectonics (stop at boundary types) Plate Tectonics The Earth s outer layer is made up of plates. – PowerPoint PPT presentation

Number of Views:57
Avg rating:3.0/5.0
Slides: 19
Provided by: shs52
Category:

less

Transcript and Presenter's Notes

Title: Structure and Motion


1
Structure and Motion
  • Plate Tectonics

2
Video
  • NOAA Plate Tectonics
  • (stop at boundary types)

3
Plate Tectonics
  • The Earths outer layer is made up of plates.
  • Plate Tectonics is a theory of global dynamics
    having to do with the movement of semi-rigid
    sections of the Earths crust called plates.
  • Seismic activity and volcanism occurs primarily
    at the margins of these plates.
  • This movement has resulted in continental drift.

4
Continental Drift
  • A term applied to the possibility that the
    continents are in motion over the Earths
    surface.
  • It was thought that the continents fit together
    like a jigsaw puzzle.
  • Pangea was the supercontinent.
  • Panthalassa was the large ocean that surrounded
    it.

5
Do You Think They Fit Together?
6
(No Transcript)
7
Continental Drift
  • Plates are in constant motion, travelling a few
    centimetres per year.
  • Include continental and oceanic crust.
  • Convection currents within the mantle move the
    plates in different directions.

8
(No Transcript)
9
The Continental Dance
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
Video
  • Science on a Sphere Plate Tectonics

17
(No Transcript)
18
1. North American Plate
5. Pacific Plate
9. Indian Plate
2. Eurasian Plate
6. Nazca Plate
10. Australian Plate
3. Caribbean Plate
11. Antarctica Plate
7. South American Plate
4. Cocos Plate
8. African Plate
Write a Comment
User Comments (0)
About PowerShow.com