Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina

Autores
Siccardi, Aron; Uriz, Norberto Javier; Cingolani, Carlos Alberto; Rustán, Juan José
Año de publicación
2012
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Ventania System is located in the south-western Buenos Aires province, Argentina and is classically correlated to units of similar age outcropping in the Malvinas Islands, the Cape Fold Belt (South Africa) and Ellsworth Mountains (Antarctica). It is characterized by an intense folding of the entire Paleozoic siliciclastic sedimentary record. Three sedimentary units are known as Curamalal, Ventana and Pillahuincó Groups. The Ventana Group (1300 m thick) is part of a Middle Ordovician-Middle Devonian marine siliciclastic sedimentary sucession and is unconformably overlain by diamictites of the Pennsylvanian Gondwanan glaciations. Four lithostratigraphic units have been recognized within the Ventana Group, from base to top: Bravard, Napostá, Providencia and Lolén. The Lolén Formation is mainly composed of feldspatic-sandstones, wackes, and interbedded black shales, with shallow marine sedimentary structures. The lower section of the Lolén Formation records marine invertebrates (mainly brachiopods and bivalves) preserved in sandy levels corresponding to supratida to subtidal depositional environments. New records include the brachiopods Proboscidina Isaacson, 1977, Scaphiocoelia? Whitfield, 1891, and a Muttationellid indet., bivalves like Nuculidae, Mallettidae and Nuculanidae, some gastropods (Plectonotus? sp Clarke, 1899) and abundant trace fossils. The presence of Proboscidina and Scaphiocoelia? suggests an age not younger than Emsian for the bearing layers, although (taking into account the stratigraphic rank of Scaphiocoelia? in Bolivian strata) a Pragian age should not be excluded. Hence, previous interpretations on the Early Devonian age of the lower part of the Lolén Formation in Eastern Argentina are supported by the new paleontological evidences.
Fil: Siccardi, Aron. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; Argentina
Fil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Rustán, Juan José. 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
Reunión de Comunicaciones de la Asociación Paleontológica Argentina
General Roca
Argentina
Asociación Paleontológica Argentina
Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología
Materia
Devonian
Brachiopods
Lolen Formation
Ventania
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235540
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/235540
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, ArgentinaSiccardi, AronUriz, Norberto JavierCingolani, Carlos AlbertoRustán, Juan JoséDevonianBrachiopodsLolen FormationVentaniahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Ventania System is located in the south-western Buenos Aires province, Argentina and is classically correlated to units of similar age outcropping in the Malvinas Islands, the Cape Fold Belt (South Africa) and Ellsworth Mountains (Antarctica). It is characterized by an intense folding of the entire Paleozoic siliciclastic sedimentary record. Three sedimentary units are known as Curamalal, Ventana and Pillahuincó Groups. The Ventana Group (1300 m thick) is part of a Middle Ordovician-Middle Devonian marine siliciclastic sedimentary sucession and is unconformably overlain by diamictites of the Pennsylvanian Gondwanan glaciations. Four lithostratigraphic units have been recognized within the Ventana Group, from base to top: Bravard, Napostá, Providencia and Lolén. The Lolén Formation is mainly composed of feldspatic-sandstones, wackes, and interbedded black shales, with shallow marine sedimentary structures. The lower section of the Lolén Formation records marine invertebrates (mainly brachiopods and bivalves) preserved in sandy levels corresponding to supratida to subtidal depositional environments. New records include the brachiopods Proboscidina Isaacson, 1977, Scaphiocoelia? Whitfield, 1891, and a Muttationellid indet., bivalves like Nuculidae, Mallettidae and Nuculanidae, some gastropods (Plectonotus? sp Clarke, 1899) and abundant trace fossils. The presence of Proboscidina and Scaphiocoelia? suggests an age not younger than Emsian for the bearing layers, although (taking into account the stratigraphic rank of Scaphiocoelia? in Bolivian strata) a Pragian age should not be excluded. Hence, previous interpretations on the Early Devonian age of the lower part of the Lolén Formation in Eastern Argentina are supported by the new paleontological evidences.Fil: Siccardi, Aron. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; ArgentinaFil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Rustán, Juan José. 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; ArgentinaReunión de Comunicaciones de la Asociación Paleontológica ArgentinaGeneral RocaArgentinaAsociación Paleontológica ArgentinaUniversidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y GeologíaAsociacion Paleontologica Argentina2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/235540Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; General Roca; Argentina; 2012; 24-25CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/https://www.apaleontologica.org.ar/rcapa-reuniones-anteriores/Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:27:47Zoai:ri.conicet.gov.ar:11336/235540instacron: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:34982025-10-15 14:27:47.59CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
title Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
spellingShingle Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
Siccardi, Aron
Devonian
Brachiopods
Lolen Formation
Ventania
title_short Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
title_full Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
title_fullStr Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
title_full_unstemmed Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
title_sort Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina
dc.creator.none.fl_str_mv Siccardi, Aron
Uriz, Norberto Javier
Cingolani, Carlos Alberto
Rustán, Juan José
author Siccardi, Aron
author_facet Siccardi, Aron
Uriz, Norberto Javier
Cingolani, Carlos Alberto
Rustán, Juan José
author_role author
author2 Uriz, Norberto Javier
Cingolani, Carlos Alberto
Rustán, Juan José
author2_role author
author
author
dc.subject.none.fl_str_mv Devonian
Brachiopods
Lolen Formation
Ventania
topic Devonian
Brachiopods
Lolen Formation
Ventania
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 Ventania System is located in the south-western Buenos Aires province, Argentina and is classically correlated to units of similar age outcropping in the Malvinas Islands, the Cape Fold Belt (South Africa) and Ellsworth Mountains (Antarctica). It is characterized by an intense folding of the entire Paleozoic siliciclastic sedimentary record. Three sedimentary units are known as Curamalal, Ventana and Pillahuincó Groups. The Ventana Group (1300 m thick) is part of a Middle Ordovician-Middle Devonian marine siliciclastic sedimentary sucession and is unconformably overlain by diamictites of the Pennsylvanian Gondwanan glaciations. Four lithostratigraphic units have been recognized within the Ventana Group, from base to top: Bravard, Napostá, Providencia and Lolén. The Lolén Formation is mainly composed of feldspatic-sandstones, wackes, and interbedded black shales, with shallow marine sedimentary structures. The lower section of the Lolén Formation records marine invertebrates (mainly brachiopods and bivalves) preserved in sandy levels corresponding to supratida to subtidal depositional environments. New records include the brachiopods Proboscidina Isaacson, 1977, Scaphiocoelia? Whitfield, 1891, and a Muttationellid indet., bivalves like Nuculidae, Mallettidae and Nuculanidae, some gastropods (Plectonotus? sp Clarke, 1899) and abundant trace fossils. The presence of Proboscidina and Scaphiocoelia? suggests an age not younger than Emsian for the bearing layers, although (taking into account the stratigraphic rank of Scaphiocoelia? in Bolivian strata) a Pragian age should not be excluded. Hence, previous interpretations on the Early Devonian age of the lower part of the Lolén Formation in Eastern Argentina are supported by the new paleontological evidences.
Fil: Siccardi, Aron. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Uriz, Norberto Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División geología; Argentina
Fil: Cingolani, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Rustán, Juan José. 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
Reunión de Comunicaciones de la Asociación Paleontológica Argentina
General Roca
Argentina
Asociación Paleontológica Argentina
Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología
description The Ventania System is located in the south-western Buenos Aires province, Argentina and is classically correlated to units of similar age outcropping in the Malvinas Islands, the Cape Fold Belt (South Africa) and Ellsworth Mountains (Antarctica). It is characterized by an intense folding of the entire Paleozoic siliciclastic sedimentary record. Three sedimentary units are known as Curamalal, Ventana and Pillahuincó Groups. The Ventana Group (1300 m thick) is part of a Middle Ordovician-Middle Devonian marine siliciclastic sedimentary sucession and is unconformably overlain by diamictites of the Pennsylvanian Gondwanan glaciations. Four lithostratigraphic units have been recognized within the Ventana Group, from base to top: Bravard, Napostá, Providencia and Lolén. The Lolén Formation is mainly composed of feldspatic-sandstones, wackes, and interbedded black shales, with shallow marine sedimentary structures. The lower section of the Lolén Formation records marine invertebrates (mainly brachiopods and bivalves) preserved in sandy levels corresponding to supratida to subtidal depositional environments. New records include the brachiopods Proboscidina Isaacson, 1977, Scaphiocoelia? Whitfield, 1891, and a Muttationellid indet., bivalves like Nuculidae, Mallettidae and Nuculanidae, some gastropods (Plectonotus? sp Clarke, 1899) and abundant trace fossils. The presence of Proboscidina and Scaphiocoelia? suggests an age not younger than Emsian for the bearing layers, although (taking into account the stratigraphic rank of Scaphiocoelia? in Bolivian strata) a Pragian age should not be excluded. Hence, previous interpretations on the Early Devonian age of the lower part of the Lolén Formation in Eastern Argentina are supported by the new paleontological evidences.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235540
Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; General Roca; Argentina; 2012; 24-25
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235540
identifier_str_mv Early Devonian marine invertebrates from the Lolén Formation, Ventania System of the Buenos Aires Province, Argentina; Reunión de Comunicaciones de la Asociación Paleontológica Argentina; General Roca; Argentina; 2012; 24-25
CONICET Digital
CONICET
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language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.apaleontologica.org.ar/rcapa-reuniones-anteriores/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociacion Paleontologica Argentina
publisher.none.fl_str_mv Asociacion Paleontologica Argentina
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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