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dc.contributor.author
Cao, Sebastián José
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dc.contributor.author
Torres Carbonell, Pablo Juan
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dc.contributor.author
Bordese, Sofía
dc.contributor.author
Lovecchio, Juan P.
dc.date.available
2023-05-11T10:55:51Z
dc.date.issued
2022-03
dc.identifier.citation
Cao, Sebastián José; Torres Carbonell, Pablo Juan; Bordese, Sofía; Lovecchio, Juan P.; Early rifting during marginal basin development: petrography, microstructure, and detrital zircon U‐Pb geochronology of the Lapataia Formation, Argentine Fuegian Andes; Wiley Blackwell Publishing, Inc; Basin Research; 34; 4; 3-2022; 1400-1420
dc.identifier.issn
0950-091X
dc.identifier.uri
http://hdl.handle.net/11336/197094
dc.description.abstract
Although being one of the most efficient tools to constrain the stratigraphy ofsedimentary basins, detrital zircon geochronology may present limitations undercertain conditions, and isotopic ages should be treated with caution before assigninga depositional age. This is the case of depositional environments that lackcoeval volcanism, where there may exist a significant time gap between the age ofthe youngest detrital zircon available and the actual time of deposition of a sedimentaryrock. In this paper, we put on a comprehensive analysis in which detritalgeochronology is aided with other reliable geological constraints. As a case study,we evaluate the stratigraphic age and provenance of the Lapataia Formationfrom the Fuegian Andes of southernmost South America, a low-grademetamorphic unit with a problematic stratigraphic definition in the context of the RocasVerdes basin. Detrital ages show very wide age spectra, with a younger peak atca. 267 Ma. However, based on detailed petrography and microstructural observations,as well as stratigraphic correlations at a regional scale, we conclude thatthe Lapataia Formation represents the earliest stages of Jurassic rifting duringthe opening of the Rocas Verdes basin. Erosion from older basement blocks in anenvironment lacking coeval volcanic activity explains the occurrence of Paleozoicand older grains, and the lack of younger zircons. This work offers a multifacetedapproach, which may be essential to assist radiometric detrital geochronology atcertain stages during basin evolution.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DETRITAL U-PB GEOCHRONOLOGY
dc.subject
EARLY RIFTING
dc.subject
FUEGIAN ANDES
dc.subject
LAPATAIA FORMATION
dc.subject
ROCAS VERDES BASIN
dc.subject.classification
Geología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Early rifting during marginal basin development: petrography, microstructure, and detrital zircon U‐Pb geochronology of the Lapataia Formation, Argentine Fuegian Andes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-27T18:26:08Z
dc.journal.volume
34
dc.journal.number
4
dc.journal.pagination
1400-1420
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Cao, Sebastián José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina
dc.description.fil
Fil: Torres Carbonell, Pablo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Bordese, Sofía. La.Te.Andes S.A.; Argentina
dc.description.fil
Fil: Lovecchio, Juan P.. Yacimiento Petroliferos Fiscal S.a.; Argentina
dc.journal.title
Basin Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/bre.12664
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/bre.12664
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