GEOLOGY

EARTH SCIENCE

SEISMOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of fault results from pulling?
A
Reverse
B
Strike Slip
C
Normal
D
Transform
Explanation: 

Detailed explanation-1: -Normal faults form when the hanging wall drops down. The forces that create normal faults are pulling the sides apart, or extensional. Reverse faults form when the hanging wall moves up. The forces creating reverse faults are compressional, pushing the sides together.

Detailed explanation-2: -normal fault-a dip-slip fault in which the block above the fault has moved downward relative to the block below. This type of faulting occurs in response to extension and is often observed in the Western United States Basin and Range Province and along oceanic ridge systems.

Detailed explanation-3: -Normal faults result from tensional forces when rocks are displaced away from each other. Reverse faults results of compressional forces when rocks are displaced towards each other. Strike-slip or transform faults results from either compressional or extensional forces when rocks slip parallell to each other.

Detailed explanation-4: -There are four types of faulting–normal, reverse, strike-slip, and oblique. A normal fault is one in which the rocks above the fault plane, or hanging wall, move down relative to the rocks below the fault plane, or footwall.

Detailed explanation-5: -Normal faults cracks where one mass of rock slides downward and pulls away from another mass of rock. As these plates are slowly splitting apart and pulling away from each other the normal faults are formed in this way. Normal faults are associated with downward movement on a sloping fault as the two plates move apart.

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