A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage

A new CA-ID TIMS U–Pb age of 130.39 ± 0.16 Ma is presented here from the Pilmatué Member of the Agrio Formation, lower Hauterivian of the Neuquén Basin in west-central Argentina. This high precision radioisotopic new age, together with the two former ones from the upper Hauterivian Agua de la Mula M...

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Detalles Bibliográficos
Publicado: 2017
Materias:
Ammonites
Biostratigraphy
Cretaceous
Geochronology
Nannofossils
age determination
ammonite
biostratigraphy
geochronology
Hauterivian
nanofossil
uranium-lead dating
Argentina
Neuquen Basin
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v75_n_p193_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v75_n_p193_AguirreUrreta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01956671_v75_n_p193_AguirreUrreta
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spelling paper:paper_01956671_v75_n_p193_AguirreUrreta2023-06-08T15:20:21Z A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage Ammonites Biostratigraphy Cretaceous Geochronology Nannofossils age determination ammonite biostratigraphy geochronology Hauterivian nanofossil uranium-lead dating Argentina Neuquen Basin A new CA-ID TIMS U–Pb age of 130.39 ± 0.16 Ma is presented here from the Pilmatué Member of the Agrio Formation, lower Hauterivian of the Neuquén Basin in west-central Argentina. This high precision radioisotopic new age, together with the two former ones from the upper Hauterivian Agua de la Mula Member of the Agrio Formation and modern cyclostratigraphic studies in the classical sections of the Mediterranean Province of the Tethys indicate that the Hauterivian Stage spans some 6 Ma, starting ca. 132 Ma and ending ca. 126 Ma. These radioisotopic ages are tied to ammonite biostratigraphy and calcareous nannofossil bioevents and biozones recognized in the Neuquén Basin which in turn are correlated with the Mediterranean standard zones. A new geological time scale for the Valanginian–Hauterivian stages in the Mediterranean region integrating astrochronological and radiochronological data differs with the current official geological time scale which still maintains poorly constraint absolute ages for the Berriasian-Aptian interval. © 2017 Elsevier Ltd 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v75_n_p193_AguirreUrreta http://hdl.handle.net/20.500.12110/paper_01956671_v75_n_p193_AguirreUrreta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ammonites
Biostratigraphy
Cretaceous
Geochronology
Nannofossils
age determination
ammonite
biostratigraphy
geochronology
Hauterivian
nanofossil
uranium-lead dating
Argentina
Neuquen Basin
spellingShingle Ammonites
Biostratigraphy
Cretaceous
Geochronology
Nannofossils
age determination
ammonite
biostratigraphy
geochronology
Hauterivian
nanofossil
uranium-lead dating
Argentina
Neuquen Basin
A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
topic_facet Ammonites
Biostratigraphy
Cretaceous
Geochronology
Nannofossils
age determination
ammonite
biostratigraphy
geochronology
Hauterivian
nanofossil
uranium-lead dating
Argentina
Neuquen Basin
description A new CA-ID TIMS U–Pb age of 130.39 ± 0.16 Ma is presented here from the Pilmatué Member of the Agrio Formation, lower Hauterivian of the Neuquén Basin in west-central Argentina. This high precision radioisotopic new age, together with the two former ones from the upper Hauterivian Agua de la Mula Member of the Agrio Formation and modern cyclostratigraphic studies in the classical sections of the Mediterranean Province of the Tethys indicate that the Hauterivian Stage spans some 6 Ma, starting ca. 132 Ma and ending ca. 126 Ma. These radioisotopic ages are tied to ammonite biostratigraphy and calcareous nannofossil bioevents and biozones recognized in the Neuquén Basin which in turn are correlated with the Mediterranean standard zones. A new geological time scale for the Valanginian–Hauterivian stages in the Mediterranean region integrating astrochronological and radiochronological data differs with the current official geological time scale which still maintains poorly constraint absolute ages for the Berriasian-Aptian interval. © 2017 Elsevier Ltd
title A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
title_short A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
title_full A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
title_fullStr A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
title_full_unstemmed A high precision U–Pb radioisotopic age for the Agrio Formation, Neuquén Basin, Argentina: Implications for the chronology of the Hauterivian Stage
title_sort high precision u–pb radioisotopic age for the agrio formation, neuquén basin, argentina: implications for the chronology of the hauterivian stage
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v75_n_p193_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v75_n_p193_AguirreUrreta
_version_ 1768545734376816640

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