1. Earth’s Crust Changes

2. Original Horizontality
Sediments are deposited in horizontal layers in shallow water - usually

3. If sedimentary rocks are not horizontal, nor in shallow water, then deformation has occurred

4. Not in shallow water
How did these rocks get so high above sea level

5. Not horizontal

6. Folded strata

8. Tilted strata

9. Faults
Normal fault
Reverse or
thrust fault
Transform
fault

10. Thrust fault

11. Normal fault

12. Transform fault

13. What is this?

14. San Andreas Fault - California
Pacific plate- N. American plate boundary

15. Caribbean – N. American plate boundary Venezuala

16. Sea floor spreading

17. Spreading center above sea level Iceland

18. Subduction zone One plate goes under another creating: Trenches
Mountain ranges
Island arcs

19. Continental collisions
Creates mountain ranges with intense deformation
many metamorphic rocks