Which of the following faults is a Thrust Fault?
a. A fault where the hanging wall moves down relative to the footwall, and extensional forces are accommodated
b. A fault where the hanging wall moves up relative to the footwall and the dip angle is typically larger than 45º
c. A fault where the hanging wall moves up relative to the footwall and the fault's slope (i.e., dip angle) is gentle (typically less than 30º)
d. A fault with a nearly vertical plane where slip occurs parallel to an imaginary horizontalline on the fault plane
Answer: c. A fault where the hanging wall moves up relative to the footwall and the fault's slope (i.e., dip angle) is gentle (typically less than 30º)
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