1. Faults

2. Create a Brochure You will use the information about faults to create a brochure that explains what a fault is and the types using examples. The brochure must contain pictures of each type of fault. It must be in color.

3. Faults A fault is a large crack in the Earth's crust where one part of the crust has moved against another part. Title Definition Illustration

4. Types of Stress: Elastic Rebound Theory: Parts of a Fault: Types of Stress: Name three types Illustration of each Elastic Rebound Theory: Explain Parts of a Fault: Labeled Drawing

5. Inside Boundary Name of Stress Description Boundary Name of Stress Description Boundary Name of Stress Description

6. Fault A fault is a large crack in the Earth's crust where one part of the crust has moved against another part. This movement means that faults prove the Earth is an active place. They are signs of powerful forces deep underground.

7. Types of Stress Tensional – pulls rocks APART Tensional – pulls rocks APART Compressional – pushes rocks TOGETHER Compressional – pushes rocks TOGETHER Shearing – pulls rocks ALONG each other Shearing – pulls rocks ALONG each other https://www.as.uky.edu/sit es/default/files/elearning/ module10swf.swf https://www.as.uky.edu/sit es/default/files/elearning/ module10swf.swf

8. The Elastic Rebound Theory Rocks will bend until they reach their Elastic Limit. Rocks will bend until they reach their Elastic Limit. Then they will break (crack) Then they will break (crack) – This forms a Fault

9. Parts of a Fault Hanging Wall Footwall

10. Dip-Slip Fault Are inclined fractures where the blocks have mostly shifted vertically. Rock mass above an inclined fault moves down, the fault is termed normal Rock above the fault moves up, the fault is termed reverse

11. Normal Fault form when the hanging wall drops down. The forces that create normal faults are pulling the sides apart, or extensional.

12. Caused by Tensional Stress Rocks/plates are pulled apart Rocks/plates are pulled apart Tension causes the hanging wall to fall down. Tension causes the hanging wall to fall down. Divergent Boundary Divergent Boundary

14. Normal Fault

17. Reverse Fault Form when the hanging wall moves up. The forces creating reverse faults are compressional, pushing the sides together.

19. Caused by Compressional Stress Rocks/plates are pushed together. Rocks/plates are pushed together. Causes the Hanging wall to move up. Causes the Hanging wall to move up. Earthquakes!!!! Earthquakes!!!! Convergent Boundary Convergent Boundary

20. Thrust Fault A special Reverse fault A special Reverse fault Angle of fault plane is shallow. Angle of fault plane is shallow.

21. Reverse Fault

23. Strike-Slip Fault have walls that move sideways, not up or down. That is, the slip occurs along the strike, not up or down the dip. Strike-slip faults are either right-lateral or left-lateral. That means someone standing near the fault the far side move to the right or to the left, respectively. The one in the picture is left-lateral.

25. Caused by Shearing Stress Rock/plates are sliding in opposite directions. Rock/plates are sliding in opposite directions. Movement is only horizontal. Movement is only horizontal. EARTHQUAKES!!! EARTHQUAKES!!! Transform Boundary Transform Boundary

26. Strike Slip Fault

27. Strike – Slip Fault

28. Oblique-Slip Fault Horizontal and Vertical Movement Horizontal and Vertical Movement Caused by Tensional and Shear Stress Caused by Tensional and Shear Stress. Transform and Divergent Boundaries Transform and Divergent Boundaries