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dc.contributor.authorMaffione, Men
dc.contributor.authorMorris, Aen
dc.contributor.authorAnderson, MWen
dc.date.accessioned2016-07-19T14:48:27Z
dc.date.available2016-07-19T14:48:27Z
dc.date.issued2013-08-01en
dc.identifier.other2336en
dc.identifier.urihttp://hdl.handle.net/10026.1/5081
dc.description.abstract

Large-offset oceanic detachment faults are a characteristic of slow- and ultraslow-spreading ridges, leading to the formation of oceanic core complexes (OCCs) that expose upper mantle and lower crustal rocks on the seafloor. The lithospheric extension accommodated by these structures is now recognized as a fundamentally distinct “detachment-mode” of seafloor spreading compared to classical magmatic accretion. Here we demonstrate a paleomagnetic methodology that allows unequivocal recognition of detachment-mode seafloor spreading in ancient ophiolites and apply this to a potential Jurassic detachment fault system in the Mirdita ophiolite (Albania). We show that footwall and hanging wall blocks either side of an inferred detachment have significantly different magnetizations that can only be explained by relative rotation during seafloor spreading. The style of rotation is shown to be identical to rolling hinge footwall rotation documented recently in OCCs in the Atlantic, confirming that detachment-mode spreading operated at least as far back as the Jurassic.

en
dc.format.extentn/a - ?en
dc.language.isoenen
dc.subjectGeodynamicsen
dc.subjectGeologyen
dc.subjectPalaeomagnetismen
dc.subjectTectonicsen
dc.titleRecognizing detachment-mode seafloor spreading in the deep geological past.en
dc.typeJournal Article
plymouth.volume3en
plymouth.journalScientific Reportsen
dc.identifier.doi10.1038/srep02336en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
dc.identifier.eissn2045-2322en
dc.rights.embargoperiodNo embargoen
rioxxterms.versionofrecord10.1038/srep02336en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.typeJournal Article/Reviewen


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