Editing Convergent boundary (section)

== Back-arc basins ==
{{Main|Back-arc basin}}
{{See also|Back-arc region}}

Back-arc basins form behind a [[volcanic arc]] and are associated with [[extensional tectonics]] and high heat flow, often being home to seafloor spreading centers. These spreading centers are like [[mid-ocean ridge]]s, though the magma composition of back-arc basins is generally more varied and contains a higher water content than mid-ocean ridge magmas.<ref>{{Cite journal|last1=Taylor|first1=Brian|last2=Martinez|first2=Fernando|date=March 2002|title=Mantle wedge control on back-arc crustal accretion|journal=Nature|volume=416|issue=6879|pages=417–420|doi=10.1038/416417a|pmid=11919628|issn=1476-4687|bibcode=2002Natur.416..417M|s2cid=4341911}}</ref> Back-arc basins are often characterized by thin, hot lithosphere. Opening of back-arc basins may arise from movement of hot asthenosphere into lithosphere, causing extension.<ref>{{Cite journal|date=1989-09-10|title=Opening of the Sea of Japan back-arc basin by asthenospheric injection|journal=Tectonophysics|volume=166|issue=4|pages=317–329|doi=10.1016/0040-1951(89)90283-7|issn=0040-1951|last1=Tatsumi|first1=Yoshiyuki|last2=Otofuji|first2=Yo-Ichiro|last3=Matsuda|first3=Takaaki|last4=Nohda|first4=Susumu|bibcode=1989Tectp.166..317T}}</ref>