Quasi-Love wave scattering reveals tectonic history of Australia and its margins reflected by mantle anisotropy
| dc.contributor.author | Eakin, Caroline | |
| dc.date.accessioned | 2022-11-21T00:27:56Z | |
| dc.date.available | 2022-11-21T00:27:56Z | |
| dc.date.issued | 2021-10-04 | |
| dc.description.abstract | The Australian continental crust preserves a rich geological history, but it is unclear to what extent this history is expressed deeper within the mantle. Here an investigation of Quasi-Love waves is performed to detect scattering of seismic surface waves at mantle depths (between 100–200 km) by lateral gradients in seismic anisotropy. Across Australasia 275 new observations of Quasi-Love waves are presented. The inferred scattering source and lateral anisotropic gradients are preferentially located either near the passive continental margins, or near the boundaries of major geological provinces within Australia. Pervasive fossilized lithospheric anisotropy within the continental interior is implied, on a scale that mirrors the crustal geology at the surface, and a strong lithosphere that has preserved this signal over billions of years. Along the continental margins, lateral anisotropic gradients may indicate either the edge of the thick continental lithosphere, or small-scale dynamic processes in the asthenosphere below. | en_AU |
| dc.format.mimetype | application/pdf | en_AU |
| dc.identifier.issn | 2662-4435 | en_AU |
| dc.identifier.uri | http://hdl.handle.net/1885/280343 | |
| dc.language.iso | en_AU | en_AU |
| dc.provenance | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/. | en_AU |
| dc.publisher | Springer Nature | en_AU |
| dc.relation | http://purl.org/au-research/grants/arc/DE190100062 | en_AU |
| dc.rights | © The Author(s) 2021 | en_AU |
| dc.rights.license | Creative Commons Attribution 4.0 International License | en_AU |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_AU |
| dc.source | Communications Earth & Environment | en_AU |
| dc.title | Quasi-Love wave scattering reveals tectonic history of Australia and its margins reflected by mantle anisotropy | en_AU |
| dc.type | Journal article | en_AU |
| dcterms.accessRights | Open Access | en_AU |
| local.bibliographicCitation.issue | 1 | en_AU |
| local.bibliographicCitation.lastpage | 10 | en_AU |
| local.bibliographicCitation.startpage | 1 | en_AU |
| local.contributor.affiliation | Eakin, C., Research School of Earth Sciences, The Australian National University | en_AU |
| local.contributor.authoruid | u1017995 | en_AU |
| local.identifier.absfor | 370609 - Seismology and seismic exploration | en_AU |
| local.identifier.absseo | 280107 - Expanding knowledge in the earth sciences | en_AU |
| local.identifier.ariespublication | a383154xPUB24547 | |
| local.identifier.citationvolume | 2 | en_AU |
| local.identifier.doi | 10.1038/s43247-021-00276-7 | en_AU |
| local.publisher.url | https://www.nature.com/ | en_AU |
| local.type.status | Published Version | en_AU |