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dc.contributor.authorWilliams, Simon E
dc.contributor.authorFlament, Nicolas
dc.contributor.authorMuller, R. Dietmar
dc.date.accessioned2019-08-15
dc.date.available2019-08-15
dc.date.issued2016-02-28
dc.identifier.citationWilliams, S. E., Flament, N., & Müller, R. D. (2016). Alignment between seafloor spreading directions and absolute plate motions through time. Geophysical Research Letters, 43(4), 1472–1480. 10.1002/2015gl067155en_AU
dc.identifier.issn00948276
dc.identifier.urihttp://hdl.handle.net/2123/20919
dc.description.abstractThe history of seafloor spreading in the ocean basins provides a detailed record of relative motions between Earth's tectonic plates since Pangea breakup. Determining how tectonic plates have moved relative to the Earth's deep interior is more challenging. Recent studies of contemporary plate motions have demonstrated links between relative plate motion and absolute plate motion (APM), and with seismic anisotropy in the upper mantle. Here we explore the link between spreading directions and APM since the Early Cretaceous. We find a significant alignment between APM and spreading directions at mid-ocean ridges; however, the degree of alignment is influenced by geodynamic setting, and is strongest for mid-Atlantic spreading ridges between plates that are not directly influenced by time-varying slab pull. In the Pacific, significant mismatches between spreading and APM direction may relate to a major plate-mantle reorganization. We conclude that spreading fabric can be used to improve models of APM. ©2016. American Geophysical Union. All Rights Reserved.en_AU
dc.description.sponsorshipThis research was supported by SIEF project RP 04-174 (S.E.W. and R.D.M.) ARC grant DP130101946 (R.D.M.) and ARC grant IH130200012 (all authors). We thank Seth Stein and an anonymous reviewer for comments, Joanne Whittaker and Sascha Brune for earlier suggestions, and John Cannon and Michael Tetley for invaluable programming expertise. Results were derived using GPlates [Boyden et al., 2011]; all data sets used are available on request. Figures were created using GMT [Wessel and Smith, 1998] and matplotlib [Hunter, 2007].en_AU
dc.language.isoen_AUen_AU
dc.publisherAmerican Geophysical Unionen_AU
dc.relationARC-DP130101946,IH130200012, Science and Industry Endowment Fund-RP 04-174en_AU
dc.rights©2016. American Geophysical Union. All Rights Reserved.en_AU
dc.subjectabsolute plate motionen_AU
dc.subjectplate reorganizationen_AU
dc.subjectplate tectonicsen_AU
dc.subjectseafloor spreadingen_AU
dc.titleAlignment between seafloor spreading directions and absolute plate motions through timeen_AU
dc.typeArticleen_AU
dc.subject.asrc040402en_AU
dc.identifier.doi10.1002/2015GL067155
dc.type.pubtypePublisher versionen_AU


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