The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay

Autores
Cingolani, Carlos Alberto; Uriz, Norberto Javier; Alfaro, Marta Beatríz; Tortello, Marcelo Franco; Bidone, Andrea Rosa; Galeano Inchausti, Julio César
Año de publicación
2011
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Lower Paleozoic Itacurubí Group (Harrington, 1972) is exposed in the western border of the intracratonic Paraná Basin of eastern Paraguay (Fig. 1). This group (c. 350 m thick) includes from base to top the Eusebio Ayala, Vargas Peña and Cariy siliciclastic formations. It was traditionally assigned to the Llandovery (e.g. Harrington, 1950; Dyck, 1991; Benedetto et al., 1992; Benedetto, 2002; Galeano Inchausti and Poiré, 2006; Uriz et al., 2008a, 2008b and references therein) based on a marine fossil record mainly of graptolites, shelly fauna, and palynofacies assemblages. The new records of graptolites and some trilobites from the Eusebio Ayala Formation, exposed in clay quarries to the east of Asunción allow the comparison with other sequences bearing similar faunal associations known in west Gondwana. These records are discussed here, taken into account that the mentioned interval was a relevant paleobiogeographical time slice during the Lower Paleozoic (Cocks, 2001).
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
SW Gondwana
Paraná Basin
Eastern Paraguay
Normalograptus persculptus Biozone
Hirnantian-Llandovery transition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/153693
Acceder
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network_name_str SEDICI (UNLP)
spelling The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern ParaguayCingolani, Carlos AlbertoUriz, Norberto JavierAlfaro, Marta BeatrízTortello, Marcelo FrancoBidone, Andrea RosaGaleano Inchausti, Julio CésarCiencias NaturalesSW GondwanaParaná BasinEastern ParaguayNormalograptus persculptus BiozoneHirnantian-Llandovery transitionThe Lower Paleozoic Itacurubí Group (Harrington, 1972) is exposed in the western border of the intracratonic Paraná Basin of eastern Paraguay (Fig. 1). This group (c. 350 m thick) includes from base to top the Eusebio Ayala, Vargas Peña and Cariy siliciclastic formations. It was traditionally assigned to the Llandovery (e.g. Harrington, 1950; Dyck, 1991; Benedetto et al., 1992; Benedetto, 2002; Galeano Inchausti and Poiré, 2006; Uriz et al., 2008a, 2008b and references therein) based on a marine fossil record mainly of graptolites, shelly fauna, and palynofacies assemblages. The new records of graptolites and some trilobites from the Eusebio Ayala Formation, exposed in clay quarries to the east of Asunción allow the comparison with other sequences bearing similar faunal associations known in west Gondwana. These records are discussed here, taken into account that the mentioned interval was a relevant paleobiogeographical time slice during the Lower Paleozoic (Cocks, 2001).Facultad de Ciencias Naturales y Museo2011info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf103-108http://sedici.unlp.edu.ar/handle/10915/153693enginfo:eu-repo/semantics/altIdentifier/isbn/978-84-7840-857-3info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:11:48Zoai:sedici.unlp.edu.ar:10915/153693Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:11:49.129SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
title The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
spellingShingle The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
Cingolani, Carlos Alberto
Ciencias Naturales
SW Gondwana
Paraná Basin
Eastern Paraguay
Normalograptus persculptus Biozone
Hirnantian-Llandovery transition
title_short The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
title_full The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
title_fullStr The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
title_full_unstemmed The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
title_sort The Hirnantian-Early Llandovery transition sequence in the Paraná basin, Eastern Paraguay
dc.creator.none.fl_str_mv Cingolani, Carlos Alberto
Uriz, Norberto Javier
Alfaro, Marta Beatríz
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author Cingolani, Carlos Alberto
author_facet Cingolani, Carlos Alberto
Uriz, Norberto Javier
Alfaro, Marta Beatríz
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author_role author
author2 Uriz, Norberto Javier
Alfaro, Marta Beatríz
Tortello, Marcelo Franco
Bidone, Andrea Rosa
Galeano Inchausti, Julio César
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
SW Gondwana
Paraná Basin
Eastern Paraguay
Normalograptus persculptus Biozone
Hirnantian-Llandovery transition
topic Ciencias Naturales
SW Gondwana
Paraná Basin
Eastern Paraguay
Normalograptus persculptus Biozone
Hirnantian-Llandovery transition
dc.description.none.fl_txt_mv The Lower Paleozoic Itacurubí Group (Harrington, 1972) is exposed in the western border of the intracratonic Paraná Basin of eastern Paraguay (Fig. 1). This group (c. 350 m thick) includes from base to top the Eusebio Ayala, Vargas Peña and Cariy siliciclastic formations. It was traditionally assigned to the Llandovery (e.g. Harrington, 1950; Dyck, 1991; Benedetto et al., 1992; Benedetto, 2002; Galeano Inchausti and Poiré, 2006; Uriz et al., 2008a, 2008b and references therein) based on a marine fossil record mainly of graptolites, shelly fauna, and palynofacies assemblages. The new records of graptolites and some trilobites from the Eusebio Ayala Formation, exposed in clay quarries to the east of Asunción allow the comparison with other sequences bearing similar faunal associations known in west Gondwana. These records are discussed here, taken into account that the mentioned interval was a relevant paleobiogeographical time slice during the Lower Paleozoic (Cocks, 2001).
Facultad de Ciencias Naturales y Museo
description The Lower Paleozoic Itacurubí Group (Harrington, 1972) is exposed in the western border of the intracratonic Paraná Basin of eastern Paraguay (Fig. 1). This group (c. 350 m thick) includes from base to top the Eusebio Ayala, Vargas Peña and Cariy siliciclastic formations. It was traditionally assigned to the Llandovery (e.g. Harrington, 1950; Dyck, 1991; Benedetto et al., 1992; Benedetto, 2002; Galeano Inchausti and Poiré, 2006; Uriz et al., 2008a, 2008b and references therein) based on a marine fossil record mainly of graptolites, shelly fauna, and palynofacies assemblages. The new records of graptolites and some trilobites from the Eusebio Ayala Formation, exposed in clay quarries to the east of Asunción allow the comparison with other sequences bearing similar faunal associations known in west Gondwana. These records are discussed here, taken into account that the mentioned interval was a relevant paleobiogeographical time slice during the Lower Paleozoic (Cocks, 2001).
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Objeto de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/153693
url http://sedici.unlp.edu.ar/handle/10915/153693
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/978-84-7840-857-3
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
103-108
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
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repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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