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dc.contributor.authorWilliams, Simon E
dc.contributor.authorWhittaker, Joanne M
dc.contributor.authorHalpin, Jacqueline A
dc.contributor.authorMuller, R. Dietmar
dc.date.accessioned2019-08-07T08:00:45Z
dc.date.available2019-08-07T08:00:45Z
dc.date.issued2019-01
dc.identifier.citationSimon E. Williams, Joanne M. Whittaker, Jacqueline A. Halpin, R. Dietmar Müller, Australian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraints, Earth-Science Reviews, Volume 188, 2019, Pages 41-58, ISSN 0012-8252, https://doi.org/10.1016/j.earscirev.2018.10.011.en_AU
dc.identifier.issn00128252
dc.identifier.urihttp://hdl.handle.net/2123/20857
dc.descriptionWe are grateful to Brian Wernicke and an anonymous reviewer for perceptive comments which improved the manuscript.en_AU
dc.description.abstractThe motion of diverging tectonic plates is typically constrained by geophysical data from preserved ocean crust. However, constraining plate motions during continental rifting and the breakup process relies on balancing evidence from a diverse range of geological and geophysical observations, often subject to differing interpretations. Reconstructing the evolution of rifting and breakup between Australia and Antarctica epitomizes the challenges involved in creating detailed models of Pangea breakup. In this example, differing degrees of emphasis on and alternative interpretations of offshore geophysical data, in particular magnetic anomalies and seismic reflection profiles, and onshore geological data, lead to starkly contrasting views of how the continents were configured at the onset of Mesozoic rifting. Here, we critically review reconstructions of rifting and breakup in the light of all available geological and geophysical data, including magnetic anomalies, fracture zones, conjugate crustal domains, amounts of continental extension, continental geology, plate boundary locations, break-up ages and stratigraphy. We identify the most viable plate tectonic reconstructions both with and without the input of the oldest, more controversial magnetic anomaly interpretations, and discuss implications for reconstructions of other margin pairs. Our analysis highlights key discrepancies between reconstructions based solely on geological piercing points, and those based on a range of constraints. These insights provide a powerful framework for reducing the range of viable models for Australian-Antarctic rifting, and provide key lessons for future efforts aimed at constraining pre- and syn-rift plate tectonic reconstructions. © 2018 Elsevier B.V.en_AU
dc.description.sponsorshipS.E.W. and R.D.M. were supported by ARC grants DP130101946 and IH130200012 . J.M.W. was supported by ARC grant DE140100376 . J.A.H was supported under Australian Research Council ‘s Special Research Initiative for Antarctic Gateway Partnership SR140300001 . S.E.W. and J.M.W. were supported by ARC grant DP180102280.en_AU
dc.language.isoen_AUen_AU
dc.publisherElsevieren_AU
dc.relationAustralian Research Council-SR140300001,DP180102280, Australian Research Council-DP130101946,IH130200012,DE140100376en_AU
dc.relationhttp://purl.org/au-research/grants/arc/SR140300001
dc.relationhttp://purl.org/au-research/grants/arc/DP180102280
dc.relationhttp://purl.org/au-research/grants/arc/DP130101946
dc.relationhttp://purl.org/au-research/grants/arc/DE140100376
dc.relationhttp://purl.org/au-research/grants/arc/IH130200012
dc.rights© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/”en_AU
dc.subjectAustralian plate, continental breakup, oceanic crust, plate boundary, plate motion, reconstruction, rifting, seafloor spreadingen_AU
dc.titleAustralian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraintsen_AU
dc.typeArticleen_AU
dc.subject.asrc040402en_AU
dc.subject.asrc040313en_AU
dc.identifier.doi10.1016/j.earscirev.2018.10.011
dc.type.pubtypePost-printen_AU
dc.description.embargo2021-01-01


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