The surface tectonics of mantle lithosphere delamination following ocean lithosphere subduction: Insights from physical-scaled analogue experiments

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dc.authoridGogus, Oguz/0000-0002-6199-303X
dc.authoridCorbi, Fabio/0000-0003-2662-3065
dc.contributor.authorGogus, Oguz H.
dc.contributor.authorPysklywec, Russell N.
dc.contributor.authorCorbi, Fabio
dc.contributor.authorFaccenna, Claudio
dc.date.accessioned2025-01-27T20:22:45Z
dc.date.available2025-01-27T20:22:45Z
dc.date.issued2011
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractMany postulated lithospheric removal events occur in regions with an earlier history of subduction, but the relationship between the two processes has not been explored. In this work, we use physical-scaled analogue experiments to investigate the evolution from ocean lithosphere subduction to collision and possible delamination of the mantle lithosphere from the crust. We test how varying the magnitude of plate convergence alters the behavior of the subduction-delamination model. Our experiments show that a retreating ocean proplate can evolve to continental mantle lithosphere delamination. Negative surface topography is supported at the delamination hinge, and this migrates back with the peeling lithosphere. With high plate convergence, delamination is suppressed. Rather, the crust and mantle lithosphere split at the collision zone in a form of flake tectonics as oncoming procrust is accreted on top of the retroplate and the promantle lithosphere subducts below. Localized high topography develops at this zone of crustal accretion and thickening. The results suggest that delamination may be a continental continuation of plate retreat and that lithospheric removal is triggered by the transition from one process to another.
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada
dc.description.sponsorshipThis work was supported by the Natural Sciences and Engineering Research Council of Canada. We thank Alexander Cruden, Pierre Robin, and Francesca Funiciello for insightful discussion and suggestions that have also improved our work. We appreciate careful and thoughtful reviews by Eugene Humphreys and Randell Stephenson.
dc.identifier.doi10.1029/2010GC003430
dc.identifier.issn1525-2027
dc.identifier.urihttps://doi.org/10.1029/2010GC003430
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22017
dc.identifier.volume12
dc.identifier.wosWOS:000290622000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherAmer Geophysical Union
dc.relation.ispartofGeochemistry Geophysics Geosystems
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectdelamination
dc.subjectretreating plates
dc.titleThe surface tectonics of mantle lithosphere delamination following ocean lithosphere subduction: Insights from physical-scaled analogue experiments
dc.typeArticle

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