Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy

New biostratigraphic data from cooccurring radiolarians and ammonites in Upper Jurassic sequences of the Antarctic Peninsula (Byers Peninsula on Livingston Island and Longing Gap, Graham Land), permit a revised and more refined regional stratigraphy. The new data also allow a revision of the chronos...

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Autores principales: Kiessling, Wolfgang, Scasso, Roberto A., Zeiss, Arnold, Riccardi, Alberto Carlos, Medina, Francisco A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1999
Materias:
Ciencias Naturales
Radiolaria
ammonites
Late Jurassic
Kimmeridgian
Tithonian
biostratigraphy
Antarctic Peninsula
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/153021
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-153021
record_format dspace
spelling I19-R120-10915-1530212023-05-16T04:07:52Z http://sedici.unlp.edu.ar/handle/10915/153021 issn:1638-9395 Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy Stratigraphie combinée de radiolaires et ammonites du Jurassique supérieur de la péninsule Antarctique : implications pour la stratigraphie des radiolaires Kiessling, Wolfgang Scasso, Roberto A. Zeiss, Arnold Riccardi, Alberto Carlos Medina, Francisco A. 1999 2023-05-15T17:59:19Z en Ciencias Naturales Radiolaria ammonites Late Jurassic Kimmeridgian Tithonian biostratigraphy Antarctic Peninsula New biostratigraphic data from cooccurring radiolarians and ammonites in Upper Jurassic sequences of the Antarctic Peninsula (Byers Peninsula on Livingston Island and Longing Gap, Graham Land), permit a revised and more refined regional stratigraphy. The new data also allow a revision of the chronostratigraphic assignment of some American radiolarian zones established by Pessagno and collaborators: the boundary of Zone 34 is assigned to the latest Kimmeridgian, contrasting the former assignment to the early/late Tithonian boundary. The boundary between Subzone 4 beta and 4 alpha is assigned to the early Tithonian, but was usually correlated with the early late Tithonian/late late Tithonian boundary. The new chronostratigraphic data from Antarctica are used together with recent results of Baumgartner and collaborators to revise the age assignment of the North American Late Jurassic radiolarian zones. De nouvelles données biostratigraphiques obtenues à partir de co-occurences de radiolaires et ammonites dans les séries du Jurassique supérieur de la péninsule Antarctique (péninsule Byers sur l'île de Livingston et de Longing Gap, Graham Land), permettent de réviser et affiner une stratigraphie régionale. Les nouvelles données permettent aussi une révision des attributions chronosrratigraphiques de quelques zonations de radiolaires américaines établies par Pessagno et ses collaborateurs : la limite de la zone 3-4 est assignée au Kimméridgien le plus tardif, contrastant ainsi avec la précédente assignation à la limite Tithonien précoce-tardif. La limite entre la sous-zone 4 beta et 4 alpha est assignée au Tithonien inférieur mais fut habituellement correlée avec la limite entre les parties inférieure et supérieure du Tithonien supérieur. Les nouvelles données chronostratigraphiques de l'Antarctique sont utilisées en même temps que les résultats récents de Baumgartner et ses collaborateurs pour réviser les attributions d'âge des zones à radiolaires du Jurassique supérieur d'Amérique du Nord. Facultad de Ciencias Naturales y Museo Universidad de Buenos Aires Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 687-713
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Radiolaria
ammonites
Late Jurassic
Kimmeridgian
Tithonian
biostratigraphy
Antarctic Peninsula
spellingShingle Ciencias Naturales
Radiolaria
ammonites
Late Jurassic
Kimmeridgian
Tithonian
biostratigraphy
Antarctic Peninsula
Kiessling, Wolfgang
Scasso, Roberto A.
Zeiss, Arnold
Riccardi, Alberto Carlos
Medina, Francisco A.
Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
topic_facet Ciencias Naturales
Radiolaria
ammonites
Late Jurassic
Kimmeridgian
Tithonian
biostratigraphy
Antarctic Peninsula
description New biostratigraphic data from cooccurring radiolarians and ammonites in Upper Jurassic sequences of the Antarctic Peninsula (Byers Peninsula on Livingston Island and Longing Gap, Graham Land), permit a revised and more refined regional stratigraphy. The new data also allow a revision of the chronostratigraphic assignment of some American radiolarian zones established by Pessagno and collaborators: the boundary of Zone 34 is assigned to the latest Kimmeridgian, contrasting the former assignment to the early/late Tithonian boundary. The boundary between Subzone 4 beta and 4 alpha is assigned to the early Tithonian, but was usually correlated with the early late Tithonian/late late Tithonian boundary. The new chronostratigraphic data from Antarctica are used together with recent results of Baumgartner and collaborators to revise the age assignment of the North American Late Jurassic radiolarian zones.
format Articulo
Articulo
author Kiessling, Wolfgang
Scasso, Roberto A.
Zeiss, Arnold
Riccardi, Alberto Carlos
Medina, Francisco A.
author_facet Kiessling, Wolfgang
Scasso, Roberto A.
Zeiss, Arnold
Riccardi, Alberto Carlos
Medina, Francisco A.
author_sort Kiessling, Wolfgang
title Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
title_short Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
title_full Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
title_fullStr Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
title_full_unstemmed Combined radiolarian-ammonite stratigraphy for the Late Jurassic of the Antarctic Peninsula: implications for radiolarian stratigraphy
title_sort combined radiolarian-ammonite stratigraphy for the late jurassic of the antarctic peninsula: implications for radiolarian stratigraphy
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/153021
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