Faulting

Associated with volcanism and tectonism is faulting. Faulting is a result of the same crustal stresses and strains which produce tectonism or volcanism. As the Earth's crust is extended during the seafloor spreading process, or deformed in the subduction process, the rocky material of which it is made will fracture. These fractures are called "faults". The different patterns of faulting provide evidence of the deformation or extension the crust is undergoing.

Types of fracturing and faulting are given below:

Other kinds of faulting include transform faults, imbricate faulting, tension fracturing, and buckle folding. These kinds of faulting are indications of differing deformation patterns.


This is a portion of the Earth's crust undergoing subduction.
Click on image for full size version (40K GIF)
Image from: The American Geophysical Union

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Faulting

Faulting is part of the process which causes volcanism and continental drift. As the Earth's crust is stretched or shoved during the seafloor spreading process, the rocky material of which it is made will fracture. These fractures are called "faults". The different patterns of faulting provide evidence of the stress and strain, or the pushing and shoving the crust is undergoing.

Types of fracturing and faulting are given below:

Other kinds of faulting include transform faults, imbricate faulting, tension fracturing, and buckle folding. These kinds of faulting are indications of differing deformation patterns being imposed on the crust.


This is a portion of the Earth's crust undergoing subduction.
Click on image for full size version (40K GIF)
Image from: The American Geophysical Union

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Faulting

An Earthquake Fault is part of the process which causes volcanoes and continental drift. When the Earth's crust is pushed along, the rocky material of which it is made can sometimes break. When the crust breaks it is called a "fault". A fault is just like a fracture you can make in a block of clay when you push the block at the same time from opposite ends. Even though the Earth seems very hard, it is very much like a block of clay. The faults help scientist tell which way the Earth's crust is being pushed.

Types of earthquake faults are:


This is a portion of the Earth's crust undergoing subduction.
Click on image for full size version (40K GIF)
Image from: The American Geophysical Union

Return to Earth's surface & interior

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