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dc.contributor.authorMitchell, Ross
dc.contributor.authorWu, Lei
dc.contributor.authorMurphy, J. Brendan
dc.contributor.authorLi, Zheng-Xiang
dc.date.accessioned2023-02-21T04:04:45Z
dc.date.available2023-02-21T04:04:45Z
dc.date.issued2020
dc.identifier.citationMitchell, R. and Wu, L. and Murphy, J.B. and Li, Z.X. 2020. Trial by fire: Testing the paleolongitude of Pangea of competing reference frames with the African LLSVP. Geoscience Frontiers. 11 (4): pp. 1253-1256.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/90592
dc.identifier.doi10.1016/j.gsf.2019.12.002
dc.description.abstract

Paleogeography can be reconstructed using various crust- or mantle-based reference frames that make fundamentally different assumptions. The various reconstruction models differ significantly in continental paleolongitude, but it has been difficult to assess which models are more valid. We suggest here a “LLSVP test”, where an assumed correlation between present-day large low velocity shear-wave provinces and the paleogeography of supercontinent Pangea at breakup ca. 200 million years ago can be used to assess the relative accuracy of published reconstructions. Closest correlations between continental paleolongitude and the African LLSVP are achieved with mantle-based reference frames (moving hotspots and true polar wander), whereas shallower crust-based reference frames are shown to be invalid. The relative success of mantle-based frames, and thus the importance of the depth of reference frame, supports the notion that mantle convection is largely vertical compared to the horizontal plate motion of tectonics.

dc.languageEnglish
dc.publisherCHINA UNIV GEOSCIENCES, BEIJING
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/FL150100133
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectGeosciences, Multidisciplinary
dc.subjectGeology
dc.subjectPalaeogeography
dc.subjectPlate tectonics
dc.subjectLLSVPs
dc.subjectReference frames
dc.subjectTRUE POLAR WANDER
dc.subjectSUPERCONTINENT CYCLES
dc.subjectMANTLE STRUCTURE
dc.subjectVELOCITY
dc.subjectSHEAR
dc.subjectCONVECTION
dc.subjectDYNAMICS
dc.subjectHOTSPOTS
dc.subjectTECTONICS
dc.subjectPROVINCES
dc.titleTrial by fire: Testing the paleolongitude of Pangea of competing reference frames with the African LLSVP
dc.typeJournal Article
dcterms.source.volume11
dcterms.source.number4
dcterms.source.startPage1253
dcterms.source.endPage1256
dcterms.source.issn1674-9871
dcterms.source.titleGeoscience Frontiers
dc.date.updated2023-02-21T04:04:44Z
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidLi, Zheng-Xiang [0000-0003-4350-5976]
curtin.contributor.researcheridLi, Zheng-Xiang [B-8827-2008]
curtin.contributor.scopusauthoridWu, Lei [56707831100]
curtin.contributor.scopusauthoridLi, Zheng-Xiang [57192954386] [57198889498] [7409074764]


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