Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina)
Massive grey limestone blocks containing a fairly diverse but poorly preserved archaeocyath fauna were recovered from a meta-conglomerate bed in the El Jagüelito Formation (Sierra Grande area, Eastern North Patagonian Massif, Río Negro, Argentina). This is the first documented reference of the prese...
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ftdialnet:oai:dialnet.unirioja.es:ART0000639211 2023-05-15T13:58:53+02:00 Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) González, Pedro Tortello, M. Franco Damborenea, Susana E. 2011 application/pdf http://dialnet.unirioja.es/servlet/oaiart?codigo=3692612 eng eng Institut de Ciències de la Terra "Jaume Almera" http://dialnet.unirioja.es/servlet/oaiart?codigo=3692612 (Revista) ISSN 1695-6133 LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: http://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: http://dialnet.unirioja.es/info/derechosOAI Geologica acta: an international earth science journal, ISSN 1695-6133, Vol. 9, Nº. 2, 2011, pags. 159-174 Archaeocyatha Early Cambrian El Jagüelito Formation Low-grade metamorphism North Patagonian Massif Argentina text (article) 2011 ftdialnet 2019-08-29T07:59:15Z Massive grey limestone blocks containing a fairly diverse but poorly preserved archaeocyath fauna were recovered from a meta-conglomerate bed in the El Jagüelito Formation (Sierra Grande area, Eastern North Patagonian Massif, Río Negro, Argentina). This is the first documented reference of the presence of archaeocyaths in continental Argentina. Seven different taxa were identified, preliminary described and figured. Recrystallization of the skeletons due to regional low-grade metamorphism and deformation of the unit does not allow observation of key detailed features and prevents identification to genera and species. Nevertheless, the specimens studied show general affinities with archaeocyathan assemblages from the Australia-Antarctica palaeobiogeographic province and indicate a middle Early Cambrian (Atdabanian-Botomian) maximum age for the deposition of the El Jagüelito Formation protoliths. The similarities between the North Patagonian Early Paleozoic El Jagüelito Formation and those rocks from Antarctica suggest a geologic and biologic common history of these regions on the same southwest margin of Gondwana during that time. Article in Journal/Newspaper Antarc* Antarctica Dialnet - Portada de revistas (Universidad de La Rioja) Argentina |
institution |
Open Polar |
collection |
Dialnet - Portada de revistas (Universidad de La Rioja) |
op_collection_id |
ftdialnet |
language |
English |
topic |
Archaeocyatha Early Cambrian El Jagüelito Formation Low-grade metamorphism North Patagonian Massif Argentina |
spellingShingle |
Archaeocyatha Early Cambrian El Jagüelito Formation Low-grade metamorphism North Patagonian Massif Argentina González, Pedro Tortello, M. Franco Damborenea, Susana E. Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
topic_facet |
Archaeocyatha Early Cambrian El Jagüelito Formation Low-grade metamorphism North Patagonian Massif Argentina |
description |
Massive grey limestone blocks containing a fairly diverse but poorly preserved archaeocyath fauna were recovered from a meta-conglomerate bed in the El Jagüelito Formation (Sierra Grande area, Eastern North Patagonian Massif, Río Negro, Argentina). This is the first documented reference of the presence of archaeocyaths in continental Argentina. Seven different taxa were identified, preliminary described and figured. Recrystallization of the skeletons due to regional low-grade metamorphism and deformation of the unit does not allow observation of key detailed features and prevents identification to genera and species. Nevertheless, the specimens studied show general affinities with archaeocyathan assemblages from the Australia-Antarctica palaeobiogeographic province and indicate a middle Early Cambrian (Atdabanian-Botomian) maximum age for the deposition of the El Jagüelito Formation protoliths. The similarities between the North Patagonian Early Paleozoic El Jagüelito Formation and those rocks from Antarctica suggest a geologic and biologic common history of these regions on the same southwest margin of Gondwana during that time. |
format |
Article in Journal/Newspaper |
author |
González, Pedro Tortello, M. Franco Damborenea, Susana E. |
author_facet |
González, Pedro Tortello, M. Franco Damborenea, Susana E. |
author_sort |
González, Pedro |
title |
Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
title_short |
Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
title_full |
Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
title_fullStr |
Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
title_full_unstemmed |
Early Cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from El Jagüelito Formation (Sierra Grande, Río Negro, Argentina) |
title_sort |
early cambrian archaeocyathan limestone blocks in low-grade meta-conglomerate from el jagüelito formation (sierra grande, río negro, argentina) |
publisher |
Institut de Ciències de la Terra "Jaume Almera" |
publishDate |
2011 |
url |
http://dialnet.unirioja.es/servlet/oaiart?codigo=3692612 |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geologica acta: an international earth science journal, ISSN 1695-6133, Vol. 9, Nº. 2, 2011, pags. 159-174 |
op_relation |
http://dialnet.unirioja.es/servlet/oaiart?codigo=3692612 (Revista) ISSN 1695-6133 |
op_rights |
LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: http://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: http://dialnet.unirioja.es/info/derechosOAI |
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