1. Plate Tectonics

2. Major Divisions of Earth Plate Tectonics

3. Different Properties Plate Tectonics

4. Rigid Plate Tectonics Plastic

5. The outer layer is the thinnest = Crust Two kinds of Crust Plate Tectonics

6. continental crust : thicker, light (granite) oceanic : thinner, dense (basalt) Plate Tectonics 2.7g/cm³ 3.3 g/cm³

7. Each Tectonic Plate: Oceanic crust or Oceanic & Continental crust Plate Tectonics

8. Each Tectonic Plate: Oceanic crust or Oceanic & Continental crust (none with continent only) Plate Tectonics

9. Oceanic crust or Oceanic & Continental crust Plate Tectonics

10. Active continental margin: leading edge of plate (earthquakes, volcanoes, steep mountains) Plate Tectonics

11. Passive continental margin: trailing edge of continent (eroded mountains, flat plains, little activity) Plate Tectonics

12. http://www.simonwinchester.com/images/map1_large.jpg

13. Active margin Passive margin

14. Plate Tectonics Classification of Plate Boundaries

15. Plate Tectonics I. Divergent Boundaries : tension = pull  apart normal faults

16. Plate Tectonics I. Divergent Boundaries : tension = pull  apart normal faults http://web.mala.bc.ca/earle/geol201/rift-valley2.gif

17. Plate Tectonics I. Divergent Boundaries : new ocean crust formed mid-ocean ridge with a rift valley down the middle

18. Plate Tectonics I. Divergent Boundaries : young basin

19. Plate Tectonics I. Divergent Boundaries : mature basin

20. Plate Tectonics I.Convergent Boundaries : compression = push  together reverse faults

21. Plate Tectonics I.Convergent Boundaries : compression = push  together reverse faults http://geology.wr.usgs.gov/parks/deform/hangfootwall.gif

22. Plate Tectonics I.Convergent Boundaries : folding & uplift earthquakes http://geology.wr.usgs.gov/parks/deform/hangfootwall.gif

23. Plate Tectonics Three kinds of Convergent Margins (Crust Type) oc - oc oc - cont. cont. - cont.

24. Plate Tectonics IIa. Ocean - Ocean deep sea trench subduction zone (recyle) volcanoes & uplift

25. Aleutians, Japan, Philippines, Indonesia

26. Plate Tectonics IIb. Ocean - Continent deep sea trench subduction zone (recycle ocean side) volcanoes & major uplift

27. Plate Tectonics IIb. Ocean - Continent

28. Andes, Cascades

29. Plate Tectonics IIc. Continent - Continent collision no subduction, no vulconism (can't recyle continents) heat & pressure, folding & major uplift

30. Plate Tectonics IIc. Continent - Continent

31. Himalayas

32. Plate Tectonics III. Transform Plate boundaries shear = sliding past in opposite directions lateral movement with earthquakes

33. Plate Tectonics III. Transform Plate boundaries California San Andreas fault