Scroll down (if you need to) to begin the first example.
Scroll down (if you need to) to begin the first example.
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Example #1 |
The fault shown here is vertical in dip, and strikes northeastward.
Compressional forces push from the north and south sides of the block. What is the resulting sense of slip of this fault? |
Click the image to see the correct answer.
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Example #2 |
This fault strikes in exactly the same northeast direction as the
fault in example #1, but its dip is roughly 60° to the southeast --
not vertical. In this case, compressional forces act upon the east
and west sides of the block. What is this fault's sense of slip? |
Click the image to see the correct answer.
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Example #3 |
Two intersecting faults exist in this diagram, and are labelled A
and B. Fault B has essentially a vertical dip,
strikes exactly east-west, and is a left-lateral oblique fault.
Fault A strikes due north, and has a shallow dip of
about 30° to the east. Given this information, determine:
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Click the image to see the correct answers.
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Example #4 |
Two parallel faults run across the block. Each strikes due north.
The western fault, labelled A, dips at 45° to the east.
The eastern fault, labelled B, dips at 45° to the west.
Extensional tectonic forces "pull" at the east and west edges of the block. What is the sense of slip of each of these faults? |
Click the image to see the correct answers.
