Plate Tectonics
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I feel the Earth move under my feet.....but why????

Go to the following web sites and read the content of the pages which are links. Questions to be answered are below each link.


Faulting and folding


1. Deformation of rock involves changes in what?

2. A fold is defined as what?

3. For plastic deformation of rock to occur a number of conditions must be met. List them.

4. The simplest type of fold is called a __________. Sketch one.

5. What is an anticline? Sketch one.

6. What is a syncline? Sketch one.

7. Both synclines and anticlines are the result of what type of stress?

8. Complex fold types develop in what situations? (under what conditions do they develop?)

9. How does a recumbent fold develop? Sketch one.

10. What is an overthrust fault? Explain how one develops.

11. How do faults form in rocks?

12. When do normal faults occur?

13. Sketch a normal fault, and label the direction of rock movement on both sides of the fault plane with an arrow pointing in the direction of movement.

14. When do reverse faults develop? Sketch one, and label the direction of rock movement on both sides of the fault plane with an arrow pointing in the direction of movement.

15. When is a graben fault produced? Sketch one, and label the direction of rock movement on both sides of the fault plane with an arrow pointing in the direction of movement.

16. What is a horst fault? Sketch one, and label the direction of rock movement on both sides of the fault plane with an arrow pointing in the direction of movement.

17. In what direction are stresses exerted in a transform fault?

18. What is another name for a transform fault?

19. Sketch a transform fault as if you were above it in an airplane looking down on it, and label the direction of rock movement on both sides of the fault plane with an arrow pointing in the direction of movement.


Mountain building

20. A mountain can be defined as what?

21. What is the difference between a mountain range and a mountain belt?

22. List 4 examples of mountain belts.

23. How are volcanic mountains dispersed throughout a mountain range?

24. Most mountains were created from what forces?

25. Orogeny, or orogenesis, is the process of mountain building through tectonic forces of compression and/or volcanism. The long passage of time without active uplift has allowed what processes to remove large amounts of bedrock from the Appalachians (and which also affect all mountains)?

26. List the 3 stages in the development and evolution of mountains.

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Lowell Bailey

Bedford-North Lawrence High School
Route 13 Box 410
Bedford
IN
47421
USA
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