Geodynamic investigation of a Cretaceous superplume in the Pacific ocean

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dc.contributor.authorXue, Jingen
dc.contributor.authorKing, Scott D.en
dc.contributor.departmentGeosciencesen
dc.date.accessioned2021-04-14T16:05:09Zen
dc.date.available2021-04-14T16:05:09Zen
dc.date.issued2016-08-01en
dc.date.updated2021-04-14T16:04:58Zen
dc.description.abstractThe similarity in both age and geochemistry of the Ontong-Java, Hikurangi, and Manihiki plateaus suggests that they formed as a single superplateau from a unique mantle source. We investigate the necessity of a thermal superplume to form the Great Ontong-Java plateau at about 120 Ma using 3D spherical models of convection with imposed plate reconstruction models. The numerical simulations show that the giant plateau which formed as a result of melting due to the interaction of a plume head and the lithosphere would have been divided into smaller plateaus by spreading ridges, and end up at the present locations of Ontong-Java, Manihiki, and Hikurangi plateaus as well as a fragment in the western Caribbean. By comparing temperature and melt fraction between models with and without an initial thermal superplume, we propose that a Cretaceous superplume in Pacific at 120 Ma is required to form large igneous plateaus.en
dc.description.versionPublished (Publication status)en
dc.format.extentPages 137-148en
dc.format.extent12 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.pepi.2016.05.018en
dc.identifier.eissn1872-7395en
dc.identifier.issn0031-9201en
dc.identifier.orcidKing, Scott [0000-0002-9564-5164]en
dc.identifier.urihttp://hdl.handle.net/10919/103025en
dc.identifier.volume257en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsIn Copyright (InC)en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPhysical Sciencesen
dc.subjectGeochemistry & Geophysicsen
dc.subjectOntong-Java plateauen
dc.subjectHikurangi plateauen
dc.subjectManihiki plateauen
dc.subjectPlate reconstructionsen
dc.subjectMantle convectionen
dc.subjectPlumesen
dc.subjectLARGE IGNEOUS PROVINCESen
dc.subjectCORE-MANTLE BOUNDARYen
dc.subjectONTONG-JAVAen
dc.subjectFLOOD BASALTSen
dc.subjectDEPENDENT VISCOSITYen
dc.subjectTOMOGRAPHY REVEALSen
dc.subjectCLUSTER-ANALYSISen
dc.subjectPLATE MOTIONSen
dc.subjectHOTSPOTSen
dc.subjectMODELSen
dc.subject0201 Astronomical and Space Sciencesen
dc.subject0402 Geochemistryen
dc.subject0404 Geophysicsen
dc.subjectGeochemistry & Geophysicsen
dc.titleGeodynamic investigation of a Cretaceous superplume in the Pacific oceanen
dc.title.serialPhysics of the Earth and Planetary Interiorsen
dc.typeArticleen
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/Geosciencesen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen
pubs.organisational-group/Virginia Techen

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