Onshore and offshore apatite fission-track dating from the southern Gulf of California: Insights into the time-space evolution of the rifting

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dc.citation.journalTitleTectonophysics
dc.contributor.authorBalestrieri, M.L.
dc.contributor.authorFerrari, L.
dc.contributor.authorBonini, M.
dc.contributor.authorDuque-Trujillo, J.
dc.contributor.authorCerca, M.
dc.contributor.authorMoratti, G.
dc.contributor.authorCorti, G.
dc.contributor.departmentUniversidad EAFIT. Departamento de Cienciasspa
dc.contributor.researchgroupGeología Ambiental y Tectónicaspa
dc.creatorBalestrieri, M.L.
dc.creatorFerrari, L.
dc.creatorBonini, M.
dc.creatorDuque-Trujillo, J.
dc.creatorCerca, M.
dc.creatorMoratti, G.
dc.creatorCorti, G.
dc.date.accessioned2021-03-26T21:25:56Z
dc.date.available2021-03-26T21:25:56Z
dc.date.issued2017-11-13
dc.description.abstractWe present the results of a apatite fission-track (AFT) study on intrusive rocks in the southern Gulf of California, sampled along the eastern margin of Baja California Sur (western rift margin), as well as from islands and submerged rifted blocks within the Gulf of California, and from the conjugate Mexican margin (Nayarit state). For most of the samples U-Pb zircon and Ar-40-Ar-39 mineral ages were already available (Duque-Trujillo et al., 2015). Coupled with the new AFT data these ages provide a more complete information on cooling after emplacement. Our samples span a wide range of ages between 5.5 +/- 1.1 and 73.7 +/- 5.8 Ma, and show a general spatial distribution, with late Miocene AFT ages (about 6 Ma) aligned roughly NW-SE along a narrow offshore belt, parallel to Baja California Peninsula, separating older ages on both sides. This pattern suggests that in Late Miocene, deformation due to plate transtension focused at the eastern rheological boundary of the Baja California block. Some Early Miocene AFT ages onshore Baja California could be related to plutons emplaced at shallow depths and thermal resetting associated with the onset of volcanism at similar to 19 Ma in this part of the Peninsula. On the other hand, an early extensional event similar to that documented in the eastern Gulf cannot be ruled out in the westernmost Baja California. (C) 2017 Elsevier B.V. All rights reserved.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=6761
dc.identifier.doi10.1016/j.tecto.2017.05.012
dc.identifier.issn00401951
dc.identifier.issn18793266
dc.identifier.otherWOS;000418223500011
dc.identifier.otherSCOPUS;2-s2.0-85019975254
dc.identifier.urihttp://hdl.handle.net/10784/27236
dc.languageeng
dc.language.isoengeng
dc.publisherELSEVIER SCIENCE BV
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85019975254&doi=10.1016%2fj.tecto.2017.05.012&partnerID=40&md5=3b56025cc5408c867162d1eb4d258b40
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0040-1951
dc.sourceTectonophysics
dc.subjectCombia eventeng
dc.subjectAndean tectonicseng
dc.subjectCanas Gordas terraneeng
dc.subjectCauca-Romeral fault systemeng
dc.titleOnshore and offshore apatite fission-track dating from the southern Gulf of California: Insights into the time-space evolution of the riftingeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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