Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes
- Autores
- Aguirre Urreta, María Beatriz; Martínez, Mathieu; Lescano, Marina Aurora; Schmitz, Mark; Tunik, Maisa Andrea; Vennari, Verónica Vanesa; López Martínez, Rafael; Concheyro, Graciela; Ramos, Victor Alberto
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- The Geological Time Scale for the Phanerozoic has one of its last geochronological gaps in the Early Cretaceous interval, including the base of the Berriasian (aka the J/K boundary) where no precise radio-isotopic ages are available. Up to now, the global ‘standard’ Early Cretaceous stages are mainly based on stratigraphic sections in the Mediterranean Province of the Tethys, and are mostly defined by ammonite biostratigraphy and calcareous nannofossil bioevents that have been calibrated with the M sequence of magnetic polarity chrons. Presently, the base of the Cretaceous is defined by the explosion of globular forms of the microfossil Calpionella alpina, and the calcareous nannofossils and ammonites are now considered secondary markers. The Neuquén Basin is a retro-arc basin developed in a normal subduction segment at the foothills of the southern Central Andes. Laterally continuous outcrops of marine sedimentary rocks with an abundant fossil record, combined with interbedded tuffaceous layers make the basin an excellent site for stratigraphical, paleontological, and radio-isotopic studies. The Late Jurassic–Early Cretaceous magmatic activity along the arc was clearly episodic with pulses that peaked in early Tithonian, middle–late Berriasian and Hauterivian times. The duration of the Tithonian up to the Hauterivian stages are presently under much debate, with large discrepancies between the numerical ages of the International Chronostratigraphic Chart 2018/v8 and the data provided by studies performed recently in the Andes and also in the Tethys. We present here high precision CA-ID TIMS Tithonian-Early Cretaceous dates combined with biostratigraphic data provided by ammonites, calcareous nannofossils and calpionellids. We also present an astronomical calibration to better constraint the durations of the Valanginian and the Hauterivian stages, constrained biostratigraphically by ammonites and calcareous nannofossils which correlate with the ‘standard’ sequence of the Tethyan Realm. These new data show significant differences not only in the absolute ages of the stage boundaries, 5 millon years younger for the base of the Cretaceous (140 Ma) and 3 millon years younger for the base of the Barremian (126 Ma), but also in the duration of each stage.
Fil: Aguirre Urreta, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Martínez, Mathieu. Universite de Rennes I; Francia
Fil: Lescano, Marina Aurora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Schmitz, Mark. Boise State University; Estados Unidos
Fil: Tunik, Maisa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina
Fil: Vennari, Verónica Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla; Argentina
Fil: López Martínez, Rafael. Universidad Nacional Autónoma de México; México
Fil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Annual Meeting of the Geological Society of America
Indianapolis
Estados Unidos
Geological Society of America - Materia
-
Absolute ages
Neuquen Basin
Jurassic
Cretaceous - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/234428
Ver los metadatos del registro completo
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Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine AndesAguirre Urreta, María BeatrizMartínez, MathieuLescano, Marina AuroraSchmitz, MarkTunik, Maisa AndreaVennari, Verónica VanesaLópez Martínez, RafaelConcheyro, GracielaRamos, Victor AlbertoAbsolute agesNeuquen BasinJurassicCretaceoushttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Geological Time Scale for the Phanerozoic has one of its last geochronological gaps in the Early Cretaceous interval, including the base of the Berriasian (aka the J/K boundary) where no precise radio-isotopic ages are available. Up to now, the global ‘standard’ Early Cretaceous stages are mainly based on stratigraphic sections in the Mediterranean Province of the Tethys, and are mostly defined by ammonite biostratigraphy and calcareous nannofossil bioevents that have been calibrated with the M sequence of magnetic polarity chrons. Presently, the base of the Cretaceous is defined by the explosion of globular forms of the microfossil Calpionella alpina, and the calcareous nannofossils and ammonites are now considered secondary markers. The Neuquén Basin is a retro-arc basin developed in a normal subduction segment at the foothills of the southern Central Andes. Laterally continuous outcrops of marine sedimentary rocks with an abundant fossil record, combined with interbedded tuffaceous layers make the basin an excellent site for stratigraphical, paleontological, and radio-isotopic studies. The Late Jurassic–Early Cretaceous magmatic activity along the arc was clearly episodic with pulses that peaked in early Tithonian, middle–late Berriasian and Hauterivian times. The duration of the Tithonian up to the Hauterivian stages are presently under much debate, with large discrepancies between the numerical ages of the International Chronostratigraphic Chart 2018/v8 and the data provided by studies performed recently in the Andes and also in the Tethys. We present here high precision CA-ID TIMS Tithonian-Early Cretaceous dates combined with biostratigraphic data provided by ammonites, calcareous nannofossils and calpionellids. We also present an astronomical calibration to better constraint the durations of the Valanginian and the Hauterivian stages, constrained biostratigraphically by ammonites and calcareous nannofossils which correlate with the ‘standard’ sequence of the Tethyan Realm. These new data show significant differences not only in the absolute ages of the stage boundaries, 5 millon years younger for the base of the Cretaceous (140 Ma) and 3 millon years younger for the base of the Barremian (126 Ma), but also in the duration of each stage.Fil: Aguirre Urreta, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Martínez, Mathieu. Universite de Rennes I; FranciaFil: Lescano, Marina Aurora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Schmitz, Mark. Boise State University; Estados UnidosFil: Tunik, Maisa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; ArgentinaFil: Vennari, Verónica Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla; ArgentinaFil: López Martínez, Rafael. Universidad Nacional Autónoma de México; MéxicoFil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaAnnual Meeting of the Geological Society of AmericaIndianapolisEstados UnidosGeological Society of AmericaGeogical Society of American2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/234428Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes; Annual Meeting of the Geological Society of America; Indianapolis; Estados Unidos; 2018; 1-10016-7592CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://gsa.confex.com/gsa/2018AM/webprogram/Paper320124.htmlinfo:eu-repo/semantics/altIdentifier/doi/doi:10.1130/abs/2018AM-320124https://www.youtube.com/watch?v=QhbfbytpvmEInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:20:40Zoai:ri.conicet.gov.ar:11336/234428instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:20:41.103CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| title |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| spellingShingle |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes Aguirre Urreta, María Beatriz Absolute ages Neuquen Basin Jurassic Cretaceous |
| title_short |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| title_full |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| title_fullStr |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| title_full_unstemmed |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| title_sort |
Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes |
| dc.creator.none.fl_str_mv |
Aguirre Urreta, María Beatriz Martínez, Mathieu Lescano, Marina Aurora Schmitz, Mark Tunik, Maisa Andrea Vennari, Verónica Vanesa López Martínez, Rafael Concheyro, Graciela Ramos, Victor Alberto |
| author |
Aguirre Urreta, María Beatriz |
| author_facet |
Aguirre Urreta, María Beatriz Martínez, Mathieu Lescano, Marina Aurora Schmitz, Mark Tunik, Maisa Andrea Vennari, Verónica Vanesa López Martínez, Rafael Concheyro, Graciela Ramos, Victor Alberto |
| author_role |
author |
| author2 |
Martínez, Mathieu Lescano, Marina Aurora Schmitz, Mark Tunik, Maisa Andrea Vennari, Verónica Vanesa López Martínez, Rafael Concheyro, Graciela Ramos, Victor Alberto |
| author2_role |
author author author author author author author author |
| dc.subject.none.fl_str_mv |
Absolute ages Neuquen Basin Jurassic Cretaceous |
| topic |
Absolute ages Neuquen Basin Jurassic Cretaceous |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The Geological Time Scale for the Phanerozoic has one of its last geochronological gaps in the Early Cretaceous interval, including the base of the Berriasian (aka the J/K boundary) where no precise radio-isotopic ages are available. Up to now, the global ‘standard’ Early Cretaceous stages are mainly based on stratigraphic sections in the Mediterranean Province of the Tethys, and are mostly defined by ammonite biostratigraphy and calcareous nannofossil bioevents that have been calibrated with the M sequence of magnetic polarity chrons. Presently, the base of the Cretaceous is defined by the explosion of globular forms of the microfossil Calpionella alpina, and the calcareous nannofossils and ammonites are now considered secondary markers. The Neuquén Basin is a retro-arc basin developed in a normal subduction segment at the foothills of the southern Central Andes. Laterally continuous outcrops of marine sedimentary rocks with an abundant fossil record, combined with interbedded tuffaceous layers make the basin an excellent site for stratigraphical, paleontological, and radio-isotopic studies. The Late Jurassic–Early Cretaceous magmatic activity along the arc was clearly episodic with pulses that peaked in early Tithonian, middle–late Berriasian and Hauterivian times. The duration of the Tithonian up to the Hauterivian stages are presently under much debate, with large discrepancies between the numerical ages of the International Chronostratigraphic Chart 2018/v8 and the data provided by studies performed recently in the Andes and also in the Tethys. We present here high precision CA-ID TIMS Tithonian-Early Cretaceous dates combined with biostratigraphic data provided by ammonites, calcareous nannofossils and calpionellids. We also present an astronomical calibration to better constraint the durations of the Valanginian and the Hauterivian stages, constrained biostratigraphically by ammonites and calcareous nannofossils which correlate with the ‘standard’ sequence of the Tethyan Realm. These new data show significant differences not only in the absolute ages of the stage boundaries, 5 millon years younger for the base of the Cretaceous (140 Ma) and 3 millon years younger for the base of the Barremian (126 Ma), but also in the duration of each stage. Fil: Aguirre Urreta, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Martínez, Mathieu. Universite de Rennes I; Francia Fil: Lescano, Marina Aurora. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Schmitz, Mark. Boise State University; Estados Unidos Fil: Tunik, Maisa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina Fil: Vennari, Verónica Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla; Argentina Fil: López Martínez, Rafael. Universidad Nacional Autónoma de México; México Fil: Concheyro, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Annual Meeting of the Geological Society of America Indianapolis Estados Unidos Geological Society of America |
| description |
The Geological Time Scale for the Phanerozoic has one of its last geochronological gaps in the Early Cretaceous interval, including the base of the Berriasian (aka the J/K boundary) where no precise radio-isotopic ages are available. Up to now, the global ‘standard’ Early Cretaceous stages are mainly based on stratigraphic sections in the Mediterranean Province of the Tethys, and are mostly defined by ammonite biostratigraphy and calcareous nannofossil bioevents that have been calibrated with the M sequence of magnetic polarity chrons. Presently, the base of the Cretaceous is defined by the explosion of globular forms of the microfossil Calpionella alpina, and the calcareous nannofossils and ammonites are now considered secondary markers. The Neuquén Basin is a retro-arc basin developed in a normal subduction segment at the foothills of the southern Central Andes. Laterally continuous outcrops of marine sedimentary rocks with an abundant fossil record, combined with interbedded tuffaceous layers make the basin an excellent site for stratigraphical, paleontological, and radio-isotopic studies. The Late Jurassic–Early Cretaceous magmatic activity along the arc was clearly episodic with pulses that peaked in early Tithonian, middle–late Berriasian and Hauterivian times. The duration of the Tithonian up to the Hauterivian stages are presently under much debate, with large discrepancies between the numerical ages of the International Chronostratigraphic Chart 2018/v8 and the data provided by studies performed recently in the Andes and also in the Tethys. We present here high precision CA-ID TIMS Tithonian-Early Cretaceous dates combined with biostratigraphic data provided by ammonites, calcareous nannofossils and calpionellids. We also present an astronomical calibration to better constraint the durations of the Valanginian and the Hauterivian stages, constrained biostratigraphically by ammonites and calcareous nannofossils which correlate with the ‘standard’ sequence of the Tethyan Realm. These new data show significant differences not only in the absolute ages of the stage boundaries, 5 millon years younger for the base of the Cretaceous (140 Ma) and 3 millon years younger for the base of the Barremian (126 Ma), but also in the duration of each stage. |
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2018 |
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2018 |
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http://hdl.handle.net/11336/234428 Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes; Annual Meeting of the Geological Society of America; Indianapolis; Estados Unidos; 2018; 1-1 0016-7592 CONICET Digital CONICET |
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Filling the gap: new Tithonian-Early Cretaceous data from the Neuquén Basin, Argentine Andes; Annual Meeting of the Geological Society of America; Indianapolis; Estados Unidos; 2018; 1-1 0016-7592 CONICET Digital CONICET |
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eng |
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