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Rift
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==Magmatism== [[File:20190621 CPH-KEF 7314 (48453477346).jpg|thumb|upright=1.35|Volcano-tectonic landforms connected to rifting on [[Geology of Reykjanes Peninsula|Reykjanes Peninsula]], [[Iceland]]: [[Fault (geology)|fault]]s, [[Fissure vent|fissure]]s, elongated [[volcano]]es of [[Subglacial volcano|subglacial origin]], postglacial [[lava field]]s]] Many rifts are the sites of at least minor [[Magmatism|magmatic activity]], particularly in the early stages of rifting.<ref name="White">{{cite journal|last=White|first=R.S.|author2=McKenzie D. |year=1989|title=Magmatism at Rift Zones: The Generation of Volcanic Margins and Flood Basalts|journal=Journal of Geophysical Research|volume=94|issue=B6|pages=7685β7729|url=http://www.mantleplumes.org/WebDocuments/White1989.pdf|access-date=27 October 2012|doi=10.1029/jb094ib06p07685|bibcode=1989JGR....94.7685W}}</ref> [[Alkali basalt]]s and [[bimodal volcanism]] are common products of rift-related magmatism.<ref name="Farmer">{{cite book|last=Farmer|first=G.L.|title=Treatise on Geochemistry: The crust|editor=Rudnick R.L.|publisher=Gulf Professional Publishing|year=2005|pages=97|chapter=Continental Basaltic Rocks|isbn=9780080448473|chapter-url=https://books.google.com/books?id=QT52UZxDFwgC&q=%22alkali+basalt%22+rift-related+volcanism&pg=PA98|access-date=28 October 2012}}</ref><ref name="Cas">{{cite book|last=Cas|first=R.A.F.|title=Volcanoes and the Environment|editor=Marti J. & Ernst G.G.|publisher=Cambridge University Press|year=2005|pages=145|chapter=Volcanoes and the geological cycle|isbn=9781139445108|chapter-url=https://books.google.com/books?id=4LswmjBnlJMC&q=bimodal+volcanism+rifting&pg=PA145|access-date=28 October 2012}}</ref> Recent studies indicate that post-collisional granites in collisional orogens are the product of rifting magmatism at converged plate margins.{{citation needed|date=October 2018}}
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