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dc.contributor.authorCao, Wenchao
dc.contributor.authorFlament, Nicolas
dc.contributor.authorZahirovic, Sabin
dc.contributor.authorWilliams, Simon E
dc.contributor.authorMuller, R. Dietmar
dc.date.accessioned2019-08-09
dc.date.available2019-08-09
dc.date.issued2019-06-20
dc.identifier.citationWenchao Cao, Nicolas Flament, Sabin Zahirovic, Simon Williams, R. Dietmar Müller, The interplay of dynamic topography and eustasy on continental flooding in the late Paleozoic, Tectonophysics, Volume 761, 2019, Pages 108-121, ISSN 0040-1951, https://doi.org/10.1016/j.tecto.2019.04.018.en_AU
dc.identifier.issn00401951
dc.identifier.urihttp://hdl.handle.net/2123/20874
dc.descriptionFigures were constructed using Generic Mapping Tools ( Wessel and Smith, 1998 ; Wessel et al., 2013 ), GPlates ( www.gplates.org ) ( Müller et al., 2018b ) and Python 2.0 . The HEALPix method ( Górski et al., 2005 ) was used for calculation of areas of paleogeography. Mantle flow models and dynamic topography computations were carried out using resources from the National Computational Infrastructure (NCI), which is supported by the Australian Government.en_AU
dc.description.abstractGlobal sea level change can be inferred from sequence stratigraphic and continental flooding data. These methods reconstruct sea level from peri-cratonic and cratonic basins that are assumed to be tectonically stable and sometimes called reference districts, and from spatio-temporal correlations across basins. However, it has been understood that long-wavelength (typically hundreds of km) and low-amplitude (<2 km) vertical displacements of the Earth's surface due to mantle flow, namely dynamic topography, can occur in the absence of crustal deformation. Dynamic topography can drive marine inundation or regional emergence of continents and must be taken into consideration for eustasy estimates. Our analysis indicates that the long-term trend in global-scale maximum flooding over the late Paleozoic generally correlates with global sea level curves. The first-order flooding history of North America correlates with some estimates of eustasy. The Paleozoic inundation of South America does not follow long-term sea level variations. The flooding lows during the Early Carboniferous and high during the Late Carboniferous are at odds with estimates of eustasy and can be explained by dynamic uplift and subsidence, respectively. Our dynamic topography models indicate that the Yangtze Platform of South China experienced significant dynamic subsidence during the transition from Permian to Triassic largely due to proto-Pacific subduction and its northward motion to collide with North China. The reference districts – Western New York, Oklahoma and Kansas, and West Texas in North America – were to some degree affected by dynamic uplift and subsidence associated with long-lived Panthalassa subduction zones, closure of the Rheic Ocean and large-scale upwelling above the African deep-mantle structure during late Paleozoic times. This indicates that some published global sea level curves may include non-eustatic signals such as dynamic uplift or subsidence. The interpretation of stratigraphic data gathered from these reference districts should be treated with caution to estimate global sea level variations. © 2019 Elsevier B.V.en_AU
dc.description.sponsorshipW. Cao was supported by a University of Sydney International Scholarship (USydIS). N.F was supported by ARC grant DE160101020 . R.D.M, S.Z. and S.W. were supported by ARC grant IH130200012 . R.D.M and S.Z. were also supported by Alfred P Sloan Foundation grants G-2017-9997 and G-2018-11296 through the Deep Carbon Observatory.en_AU
dc.language.isoen_AUen_AU
dc.publisherElsevieren_AU
dc.relationAlfred P. Sloan Foundation-G-2017-9997,G-2018-11296, Australian Research Council-DE160101020,IH130200012en_AU
dc.relationhttp://purl.org/au-research/grants/arc/DE160101020
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.subjectContinental inundationen_AU
dc.subjectDynamic topographyen_AU
dc.subjectEustatic sea levelen_AU
dc.subjectMantle flowen_AU
dc.subjectMantle structureen_AU
dc.subjectPlate tectonic modelen_AU
dc.titleThe interplay of dynamic topography and eustasy on continental flooding in the late Paleozoicen_AU
dc.typeArticleen_AU
dc.subject.asrc040402en_AU
dc.subject.asrc040313en_AU
dc.identifier.doi10.1016/j.tecto.2019.04.018
dc.type.pubtypePost-printen_AU
dc.description.embargo2021-06-01


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