Seismic evidence for lithospheric boudinage and its implications for continental rifting

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dc.citation.firstpage986en_US
dc.citation.issueNumber9en_US
dc.citation.journalTitleGeologyen_US
dc.citation.lastpage990en_US
dc.citation.volumeNumber50en_US
dc.contributor.authorNguyen, Luan C.en_US
dc.contributor.authorLevander, Alanen_US
dc.contributor.authorNiu, Fenglinen_US
dc.contributor.authorMorgan, Juliaen_US
dc.contributor.authorLi, Guoliangen_US
dc.date.accessioned2022-09-12T18:52:42Zen_US
dc.date.available2022-09-12T18:52:42Zen_US
dc.date.issued2022en_US
dc.description.abstractThe continental rifting that precedes the breakup of a continent and the formation of a new ocean basin is one of the key processes of plate tectonics. Although often viewed as a two-dimensional process, rifted margins exhibit significant variations along strike. We document along-strike variations developed during the ca. 200–160 Ma continental rifting that formed the margins of the Gulf of Mexico ocean basin. Rayleigh-wave ambient noise tomography reveals a zone of high and low seismic velocity resembling large scale geologic boudins in the mantle lithosphere of the northwestern Gulf of Mexico margin. These features become progressively less prominent eastward following the transition from a magma-poor to a magma-rich passive margin. We infer that mantle refertilization and thickness of the pre-rift lithosphere control deformation style and the along-strike variations in continental rifting. Our results also suggest that deformation during rifting produces long-lived features that persist long after breakup and, therefore, can be used to study rifted margins globally.en_US
dc.identifier.citationNguyen, Luan C., Levander, Alan, Niu, Fenglin, et al.. "Seismic evidence for lithospheric boudinage and its implications for continental rifting." <i>Geology,</i> 50, no. 9 (2022) The Geological Society of America: 986-990. https://doi.org/10.1130/G50046.1.en_US
dc.identifier.doihttps://doi.org/10.1130/G50046.1en_US
dc.identifier.urihttps://hdl.handle.net/1911/113201en_US
dc.language.isoengen_US
dc.publisherThe Geological Society of Americaen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the Geological Society of America.en_US
dc.titleSeismic evidence for lithospheric boudinage and its implications for continental riftingen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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