This is a portion of the Loma Pietra earthquke fault near Santa Cruz, Calif.
Click on image for full size
Image courtesy of the American Geophysical Union
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:
- normal faulting,
- strike/slipfaulting, a good example is the San Andreas Fault
- continental rifting
Other kinds of faulting include transform faults, imbricate faulting, tension fracturing, and buckle folding. These kinds of faulting are indications of differing ways in which the crust is being deformed.
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