Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera

Autores
Mango, Matías Javier; Albanesi, Guillermo Luis
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Conodonts from the upper La Silla (9.6 m thick) and San Juan formations (264.7 m thick) at the Cerro La Silla section are analyzed for the identification of faunal dynamics, biofacies and sea-level changes. The conodont collection of 11 388 specimens was recovered after digestion of 41 samples of carbonate rocks, totalizing 88.155 kg. Conodont total abundance and generic diversity graphs, as well as cluster analysis, reveal seven biofacies. The Colaptoconus, Tropodus-Reutterodus, Oepikodus- Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus- Protopanderodus, Juanognathus-Semiacontiodus biofacies are determined. These biofacies represent middle to outer carbonate ramp environments for the San Juan Formation. The associated analysis of biofacies and lithology allow for the recognition of two transgressive events in the San Juan Formation at the Cerro La Silla section, which could be related to transgressive systems tracts (TST) that occurred during the Early and Middle Ordovician (middle Tremadocian-early Dapingian).
Biofaciès à conodontes ordoviciens de la partie supérieure de la formation La Silla et de la formation San Juan (Trémadocien moyen-Dapingien inférieur) du Cerro la Silla, précordillère argentine. Les conodontes de la section du Cerro La Silla provenant de la partie supérieure de la formation La Silla (9,6 m de puissance) et de la formation San Juan (264,7 m de puissance) sont analysés afin d’identifier la dynamique faunistique, les biofaciès, ainsi que les changements de niveau marin. La collection de 11 388 spécimens a été récolté après la dissolution de 41 échantillons de roches carbonatées, totalisant 88,155 kg. Les courbes d’abondance totale et de diversité générique des conodontes, associées à une analyse de groupes, révèlent sept biofaciès. Les biofaciès à Colaptoconus, Tropodus-Reutterodus, Oepikodus-Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus-Protopanderodus, Juanognathus-Semiacontiodus, indiquent des environnements de rampe carbonatée médians à externes pour la formation San Juan. L’analyse conjointe des biofaciès et de la lithologie permet l’identification, au sein de la formation de San Juan, de deux événements transgressifs qui peuvent être reliés aux cortèges des systèmes transgressifs (TST) qui se sont déroulés au cours de l’Ordovicien précoce et moyen (Trémadocien moyen-Dapingien précoce).
Fil: Mango, Matías Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Albanesi, Guillermo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
ARGENTINE PRECORDILLERA
CONODONT BIOFACIES
LA SILLA FORMATION
ORDOVICIAN
SAN JUAN FORMATION
SEA-LEVEL CHANGES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/173395
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/173395
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine PrecordilleraBiofaciès à conodontes ordoviciens de la partie supérieure de la formation La Silla et de la formation San Juan (Trémadocien moyen-Dapingien inférieur) du Cerro la Silla, précordillère argentineMango, Matías JavierAlbanesi, Guillermo LuisARGENTINE PRECORDILLERACONODONT BIOFACIESLA SILLA FORMATIONORDOVICIANSAN JUAN FORMATIONSEA-LEVEL CHANGEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Conodonts from the upper La Silla (9.6 m thick) and San Juan formations (264.7 m thick) at the Cerro La Silla section are analyzed for the identification of faunal dynamics, biofacies and sea-level changes. The conodont collection of 11 388 specimens was recovered after digestion of 41 samples of carbonate rocks, totalizing 88.155 kg. Conodont total abundance and generic diversity graphs, as well as cluster analysis, reveal seven biofacies. The Colaptoconus, Tropodus-Reutterodus, Oepikodus- Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus- Protopanderodus, Juanognathus-Semiacontiodus biofacies are determined. These biofacies represent middle to outer carbonate ramp environments for the San Juan Formation. The associated analysis of biofacies and lithology allow for the recognition of two transgressive events in the San Juan Formation at the Cerro La Silla section, which could be related to transgressive systems tracts (TST) that occurred during the Early and Middle Ordovician (middle Tremadocian-early Dapingian).Biofaciès à conodontes ordoviciens de la partie supérieure de la formation La Silla et de la formation San Juan (Trémadocien moyen-Dapingien inférieur) du Cerro la Silla, précordillère argentine. Les conodontes de la section du Cerro La Silla provenant de la partie supérieure de la formation La Silla (9,6 m de puissance) et de la formation San Juan (264,7 m de puissance) sont analysés afin d’identifier la dynamique faunistique, les biofaciès, ainsi que les changements de niveau marin. La collection de 11 388 spécimens a été récolté après la dissolution de 41 échantillons de roches carbonatées, totalisant 88,155 kg. Les courbes d’abondance totale et de diversité générique des conodontes, associées à une analyse de groupes, révèlent sept biofaciès. Les biofaciès à Colaptoconus, Tropodus-Reutterodus, Oepikodus-Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus-Protopanderodus, Juanognathus-Semiacontiodus, indiquent des environnements de rampe carbonatée médians à externes pour la formation San Juan. L’analyse conjointe des biofaciès et de la lithologie permet l’identification, au sein de la formation de San Juan, de deux événements transgressifs qui peuvent être reliés aux cortèges des systèmes transgressifs (TST) qui se sont déroulés au cours de l’Ordovicien précoce et moyen (Trémadocien moyen-Dapingien précoce).Fil: Mango, Matías Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Albanesi, Guillermo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaElsevier France-Editions Scientifiques Medicales Elsevier2021-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/173395Mango, Matías Javier; Albanesi, Guillermo Luis; Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera; Elsevier France-Editions Scientifiques Medicales Elsevier; Comptes Rendus Palevol; 20; 35; 8-2021; 741-7591631-06831777-571XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://sciencepress.mnhn.fr/fr/periodiques/comptes-rendus-palevol/20/35info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2021v20a35info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:01Zoai:ri.conicet.gov.ar:11336/173395instacron: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:34982025-09-03 10:06:01.855CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
Biofaciès à conodontes ordoviciens de la partie supérieure de la formation La Silla et de la formation San Juan (Trémadocien moyen-Dapingien inférieur) du Cerro la Silla, précordillère argentine
title Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
spellingShingle Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
Mango, Matías Javier
ARGENTINE PRECORDILLERA
CONODONT BIOFACIES
LA SILLA FORMATION
ORDOVICIAN
SAN JUAN FORMATION
SEA-LEVEL CHANGES
title_short Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
title_full Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
title_fullStr Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
title_full_unstemmed Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
title_sort Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera
dc.creator.none.fl_str_mv Mango, Matías Javier
Albanesi, Guillermo Luis
author Mango, Matías Javier
author_facet Mango, Matías Javier
Albanesi, Guillermo Luis
author_role author
author2 Albanesi, Guillermo Luis
author2_role author
dc.subject.none.fl_str_mv ARGENTINE PRECORDILLERA
CONODONT BIOFACIES
LA SILLA FORMATION
ORDOVICIAN
SAN JUAN FORMATION
SEA-LEVEL CHANGES
topic ARGENTINE PRECORDILLERA
CONODONT BIOFACIES
LA SILLA FORMATION
ORDOVICIAN
SAN JUAN FORMATION
SEA-LEVEL CHANGES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Conodonts from the upper La Silla (9.6 m thick) and San Juan formations (264.7 m thick) at the Cerro La Silla section are analyzed for the identification of faunal dynamics, biofacies and sea-level changes. The conodont collection of 11 388 specimens was recovered after digestion of 41 samples of carbonate rocks, totalizing 88.155 kg. Conodont total abundance and generic diversity graphs, as well as cluster analysis, reveal seven biofacies. The Colaptoconus, Tropodus-Reutterodus, Oepikodus- Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus- Protopanderodus, Juanognathus-Semiacontiodus biofacies are determined. These biofacies represent middle to outer carbonate ramp environments for the San Juan Formation. The associated analysis of biofacies and lithology allow for the recognition of two transgressive events in the San Juan Formation at the Cerro La Silla section, which could be related to transgressive systems tracts (TST) that occurred during the Early and Middle Ordovician (middle Tremadocian-early Dapingian).
Biofaciès à conodontes ordoviciens de la partie supérieure de la formation La Silla et de la formation San Juan (Trémadocien moyen-Dapingien inférieur) du Cerro la Silla, précordillère argentine. Les conodontes de la section du Cerro La Silla provenant de la partie supérieure de la formation La Silla (9,6 m de puissance) et de la formation San Juan (264,7 m de puissance) sont analysés afin d’identifier la dynamique faunistique, les biofaciès, ainsi que les changements de niveau marin. La collection de 11 388 spécimens a été récolté après la dissolution de 41 échantillons de roches carbonatées, totalisant 88,155 kg. Les courbes d’abondance totale et de diversité générique des conodontes, associées à une analyse de groupes, révèlent sept biofaciès. Les biofaciès à Colaptoconus, Tropodus-Reutterodus, Oepikodus-Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus-Protopanderodus, Juanognathus-Semiacontiodus, indiquent des environnements de rampe carbonatée médians à externes pour la formation San Juan. L’analyse conjointe des biofaciès et de la lithologie permet l’identification, au sein de la formation de San Juan, de deux événements transgressifs qui peuvent être reliés aux cortèges des systèmes transgressifs (TST) qui se sont déroulés au cours de l’Ordovicien précoce et moyen (Trémadocien moyen-Dapingien précoce).
Fil: Mango, Matías Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Albanesi, Guillermo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description Conodonts from the upper La Silla (9.6 m thick) and San Juan formations (264.7 m thick) at the Cerro La Silla section are analyzed for the identification of faunal dynamics, biofacies and sea-level changes. The conodont collection of 11 388 specimens was recovered after digestion of 41 samples of carbonate rocks, totalizing 88.155 kg. Conodont total abundance and generic diversity graphs, as well as cluster analysis, reveal seven biofacies. The Colaptoconus, Tropodus-Reutterodus, Oepikodus- Prioniodus, Juanognathus-Bergstroemognathus, Juanognathus-Oepikodus-Protopanderodus, Juanognathus- Protopanderodus, Juanognathus-Semiacontiodus biofacies are determined. These biofacies represent middle to outer carbonate ramp environments for the San Juan Formation. The associated analysis of biofacies and lithology allow for the recognition of two transgressive events in the San Juan Formation at the Cerro La Silla section, which could be related to transgressive systems tracts (TST) that occurred during the Early and Middle Ordovician (middle Tremadocian-early Dapingian).
publishDate 2021
dc.date.none.fl_str_mv 2021-08
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 http://hdl.handle.net/11336/173395
Mango, Matías Javier; Albanesi, Guillermo Luis; Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera; Elsevier France-Editions Scientifiques Medicales Elsevier; Comptes Rendus Palevol; 20; 35; 8-2021; 741-759
1631-0683
1777-571X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/173395
identifier_str_mv Mango, Matías Javier; Albanesi, Guillermo Luis; Ordovician conodont biofacies of the upper La Silla and San Juan formations (middle Tremadocian-lower Dapingian) at Cerro La Silla, Argentine Precordillera; Elsevier France-Editions Scientifiques Medicales Elsevier; Comptes Rendus Palevol; 20; 35; 8-2021; 741-759
1631-0683
1777-571X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://sciencepress.mnhn.fr/fr/periodiques/comptes-rendus-palevol/20/35
info:eu-repo/semantics/altIdentifier/doi/10.5852/cr-palevol2021v20a35
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier France-Editions Scientifiques Medicales Elsevier
publisher.none.fl_str_mv Elsevier France-Editions Scientifiques Medicales Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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