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They have the same type of force on each fault and the tension is released

Whenever the vertical stress (which mostly is because of gravity) is more than horizontal stresses, normal faults can be created or activated.

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9y ago
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12y ago

Yes the stress that causes normal faults is tension (plates pulling apart)

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NO, the plates are NOT pulled apart, they are FORCED apart, there is NO tensional stress in the planet.

Stresses DO cause normal faults, they occur when the maximum principal stress is vertical, when GRAVITY is the dominant force.

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12y ago

The tectonic stress regime in normal faulting is tensile. This is different to the sense of motion which is usually (sub)vertical. On the fault plane itself, as it is at an angle, there will be shear and normal stresses acting as a traction due to the self weight of the overlying rockmass (the hanging wall) acting on the footwall. However if there was no extensional stress state, the self weight of the overlying fault block would effectively act to drive up the shear strength of the fault plane. The tensile stress reduces the normal load on the fault plane and so reduces it's strength allowing movement to occur.

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11y ago

tension

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Q: What stress is a normal fault?
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Related questions

What kind of stress does normal fault form?

Normal fault forms tension stress. It is a stress state wherein a body of material is being stretched or expanded.


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