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strike-slip fault

1. n. [Geology]

A type of fault whose surface is typically vertical or nearly so. The motion along a strike-slip fault is parallel to the strike of the fault surface, and the fault blocks move sideways past each other. A strike-slip fault in which the block across the fault moves to the right is described as a dextral strike-slip fault. If it moves left, the relative motion is described as sinistral. Local deformation near bends in strike-slip faults can produce pull-apart basins and grabens. Flower structures are another by-product of strike-slip faults. A wrench fault is a type of strike-slip fault in which the fault surface is nearly vertical.

See: basinfaultflower structuregrabengrabenoffsetstriketransform faulttranspressiontranstensionwrench fault

Geologic fault types
Schematic diagrams of normal, reverse and strike-slip faults.

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