Normal fault<br />Occurs when the hanging wall block moves relative to the footwall block<br />
Reverse fault<br />A fault in which the hanging wall block moves up relative to the footwall block.<br />
Thrust fault<br />Reverse faults with dips of less than 45 degrees<br />
Strike-slip fault<br />Faults in which the movement is parallel to the trend or strike, of the fault surface<br />
What You Should Know…<br />The factors that influence the strength of a rock and how it will deform include temperature, confining pressure, rock type, and time.<br />Rocks deform permanently in two ways: brittle deformation and ductile formation.<br />
More 411 On Deformation<br />Forces that are unable to deform rock when first applied may cause rock to flow if the force is maintained over a long period of time.<br />The three types of stresses that rocks commonly undergo are tensional stress, compressional stress, and shear stress.<br />
Even More Information<br />The three main types of folds are anticlines, synclines, and monoclines.<br />The major types of faults are normal faults, reverse faults, thrust faults, and strike-slip faults.<br />
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