Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes

Autores
Aguirre Urreta, Beatriz; Lescano, Marina A.; Schmitz, Mark; Tunik, Maisa A.; Concheyro, Andrea; Rawson, Peter F.; Ramos, Victor A.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Aguirre Urreta, Maria B. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Lescano, Marina A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Schmitz, Mark. Boise State University. Department of Geosciences. USA.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Concheyro, Graciela. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Rawson, Peter F. University of Hull (Scarborough Campus). Centre for Environmental and Marine Sciences. North Yorkshire. UK
Fil: Ramos, Victor A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Rawson, Peter F. University College London. Department of Earth Sciences. London, UK.
Two tuffs in the Lower Cretaceous Agrio Formation, Neuquén Basin, provided U–Pb zircon radioisotopic ages of 129.09±0.16 Ma and 127.42±0.15 Ma. Both horizons are well constrained biostratigraphically by ammonites and nannofossils and can be correlated with the ‘standard’ sequence of the Mediterranean Province. The lower horizon is very close to the base of the Upper Hauterivian and the upper horizon to the Hauterivian/Barremian boundary, indicating that the former lies at c. 129.5 Ma and the latter at c. 127 Ma. These new radioisotopic ages fill a gap of over 8 million years in the numerical calibration of the current global Early Cretaceous geological time scale.
Materia
Neuquén Basin
Hauterivian
Biostratigraphy
Ammonoids
Calcareous Nannofossils
U–Pb CA-ID-TIMS
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5346
Acceder
id RIDUNRN_0c59f9428f1477bc98f667ab54df8941
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Filling the gap: new precise Early Cretaceous radioisotopic ages from the AndesAguirre Urreta, BeatrizLescano, Marina A.Schmitz, MarkTunik, Maisa A.Concheyro, AndreaRawson, Peter F.Ramos, Victor A.Neuquén BasinHauterivianBiostratigraphyAmmonoidsCalcareous NannofossilsU–Pb CA-ID-TIMSArgentinaFil: Aguirre Urreta, Maria B. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.Fil: Lescano, Marina A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.Fil: Schmitz, Mark. Boise State University. Department of Geosciences. USA.Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Concheyro, Graciela. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.Fil: Rawson, Peter F. University of Hull (Scarborough Campus). Centre for Environmental and Marine Sciences. North Yorkshire. UKFil: Ramos, Victor A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.Fil: Rawson, Peter F. University College London. Department of Earth Sciences. London, UK.Two tuffs in the Lower Cretaceous Agrio Formation, Neuquén Basin, provided U–Pb zircon radioisotopic ages of 129.09±0.16 Ma and 127.42±0.15 Ma. Both horizons are well constrained biostratigraphically by ammonites and nannofossils and can be correlated with the ‘standard’ sequence of the Mediterranean Province. The lower horizon is very close to the base of the Upper Hauterivian and the upper horizon to the Hauterivian/Barremian boundary, indicating that the former lies at c. 129.5 Ma and the latter at c. 127 Ma. These new radioisotopic ages fill a gap of over 8 million years in the numerical calibration of the current global Early Cretaceous geological time scale.Cambridge University Press2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfAguirre Urreta, Maria B., Lescano, Marina A., Schmitz, Mark., Tunik, Maisa A., Concheyro, Graciela y et al (2015) Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes. Cambridge University Press; Geological Magazine; 152 (3); 557-5640016-75681469-5081https://www.cambridge.org/core/journals/geological-magazine/article/filling-the-gap-new-precise-early-cretaceous-radioisotopic-ages-from-the-andes/8B0742BF27BBA5868249551E30A2F479https://doi.org/10.1017/S001675681400082Xhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/5346eng152 (3)Geological Magazineinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-10-16T10:06:05Zoai:rid.unrn.edu.ar:20.500.12049/5346instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-10-16 10:06:06.247RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
title Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
spellingShingle Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
Aguirre Urreta, Beatriz
Neuquén Basin
Hauterivian
Biostratigraphy
Ammonoids
Calcareous Nannofossils
U–Pb CA-ID-TIMS
Argentina
title_short Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
title_full Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
title_fullStr Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
title_full_unstemmed Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
title_sort Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes
dc.creator.none.fl_str_mv Aguirre Urreta, Beatriz
Lescano, Marina A.
Schmitz, Mark
Tunik, Maisa A.
Concheyro, Andrea
Rawson, Peter F.
Ramos, Victor A.
author Aguirre Urreta, Beatriz
author_facet Aguirre Urreta, Beatriz
Lescano, Marina A.
Schmitz, Mark
Tunik, Maisa A.
Concheyro, Andrea
Rawson, Peter F.
Ramos, Victor A.
author_role author
author2 Lescano, Marina A.
Schmitz, Mark
Tunik, Maisa A.
Concheyro, Andrea
Rawson, Peter F.
Ramos, Victor A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Neuquén Basin
Hauterivian
Biostratigraphy
Ammonoids
Calcareous Nannofossils
U–Pb CA-ID-TIMS
Argentina
topic Neuquén Basin
Hauterivian
Biostratigraphy
Ammonoids
Calcareous Nannofossils
U–Pb CA-ID-TIMS
Argentina
dc.description.none.fl_txt_mv Fil: Aguirre Urreta, Maria B. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Lescano, Marina A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Schmitz, Mark. Boise State University. Department of Geosciences. USA.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Concheyro, Graciela. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Rawson, Peter F. University of Hull (Scarborough Campus). Centre for Environmental and Marine Sciences. North Yorkshire. UK
Fil: Ramos, Victor A. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
Fil: Rawson, Peter F. University College London. Department of Earth Sciences. London, UK.
Two tuffs in the Lower Cretaceous Agrio Formation, Neuquén Basin, provided U–Pb zircon radioisotopic ages of 129.09±0.16 Ma and 127.42±0.15 Ma. Both horizons are well constrained biostratigraphically by ammonites and nannofossils and can be correlated with the ‘standard’ sequence of the Mediterranean Province. The lower horizon is very close to the base of the Upper Hauterivian and the upper horizon to the Hauterivian/Barremian boundary, indicating that the former lies at c. 129.5 Ma and the latter at c. 127 Ma. These new radioisotopic ages fill a gap of over 8 million years in the numerical calibration of the current global Early Cretaceous geological time scale.
description Fil: Aguirre Urreta, Maria B. Universidad de Buenos Aires. Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET). Buenos Aires, Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Aguirre Urreta, Maria B., Lescano, Marina A., Schmitz, Mark., Tunik, Maisa A., Concheyro, Graciela y et al (2015) Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes. Cambridge University Press; Geological Magazine; 152 (3); 557-564
0016-7568
1469-5081
https://www.cambridge.org/core/journals/geological-magazine/article/filling-the-gap-new-precise-early-cretaceous-radioisotopic-ages-from-the-andes/8B0742BF27BBA5868249551E30A2F479
https://doi.org/10.1017/S001675681400082X
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5346
identifier_str_mv Aguirre Urreta, Maria B., Lescano, Marina A., Schmitz, Mark., Tunik, Maisa A., Concheyro, Graciela y et al (2015) Filling the gap: new precise Early Cretaceous radioisotopic ages from the Andes. Cambridge University Press; Geological Magazine; 152 (3); 557-564
0016-7568
1469-5081
url https://www.cambridge.org/core/journals/geological-magazine/article/filling-the-gap-new-precise-early-cretaceous-radioisotopic-ages-from-the-andes/8B0742BF27BBA5868249551E30A2F479
https://doi.org/10.1017/S001675681400082X
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5346
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 152 (3)
Geological Magazine
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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score 12.712165

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