{{short description|Structure and processes associated with zones of lateral displacement in the Earth's crust}}
'''Strike-slip tectonics''' or '''wrench tectonics''' is the type of [[tectonics]] that is dominated by lateral (horizontal) movements within the [[Crust (geology)|Earth's crust]] (and [[lithosphere]]). Where a zone of strike-slip tectonics forms the boundary between two [[Plate tectonics|tectonic plates]], this is known as a [[transform fault|transform]] or conservative plate boundary. Areas of strike-slip tectonics are characterised by particular deformation styles including: ''stepovers'', ''ReidelRiedel shears'', ''flower structures'' and ''strike-slip duplexes''. Where the displacement along a zone of strike-slip deviates from parallelism with the zone itself, the style becomes either [[transpression|transpressional]] or [[transtension|transtensional]] depending on the sense of deviation. Strike-slip tectonics is characteristic of several geological environments, including oceanic and continental transform faults, zones of oblique collision and the deforming foreland of zones of [[continental collision]].<ref>{{Cite book |last=Acocella |first=V. |title=Volcano-Tectonic Processes |publisher=Springer International Publishing |year=2021 |isbn=9783030659684 |pages=74}}</ref><ref name="Burg_2017">{{Cite web |last=Burg |first=J.-P. |date=2017 |title=Tectonics – Strike-slip faults |url=https://www.files.ethz.ch/structuralgeology/jpb/files/english/5wrench.pdf |access-date=26 September 2022}}</ref>