Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina

Autores
Varela, Augusto Nicolás; Richiano, Sebastián Miguel; Poire, Daniel Gustavo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Puesto El Moro Formation (Upper Cretaceous) was originally considered as a continental succession overlying the Piedra Clavada Formation. This unit is exposed in the region of Lake San Martin, near the homonymous Outpost belonging to the Estancia La Lila. The Puesto El Moro Formation is coeval with the Mata Amarilla Formation; both formations are of great interest because they mark the onset of the foreland stage of the Austral Basin. A detailed sedimentological logging at the type locality allows the identification of three main intervals. The lower interval corresponds to a littoral paleoenvironment, and the middle and upper intervals were developed in continental (fluvial) paleoenvironment. The lower littoral interval is composed of an alternation of commonly bioturbated medium-grained sandstone, with greyish flaser-bedded heterolithic deposits, locally exhibiting trace fossils. The ichnofauna is dominated by Thalassinoides isp., accompanied by Ophiomorpha nodosa, Palaeophycus isp. and Sinusichnus sinuosus. This ichnoassociation corresponds to an impoverished Cruziana Ichnofacies developed in a marginal shallow marine palaeoenvironment with salinity stress and / or oxygen depletion. Most of these ichnotaxa are produced by callianassid crustaceans that used the galleries for different purposes, including dwelling (domichnia) and bacteria cultivation (agrichnia). Similar examples, which could be used as analogues for paleoenvironmental characterization, can be found in the Pliocene marginal marine deposits of France and Spain (the type locality of the ichnogenus Sinusichnus), in deltaic deposits of the Oligocene-Miocene of Venezuela, and in the Cretaceous of Antarctica.
Fil: Varela, Augusto Nicolás. 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: Richiano, Sebastián Miguel. 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: Poire, Daniel Gustavo. 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
Second Latin American Symposium on Ichnology
Santa Rosa
Argentina
Universidad Nacional de La Pampa
Instituto de Ciencias de la Tierra y Ambientales de La Pampa
Materia
TRACE FOSSILS
BRACKISH WATER
PUESTO EL MORO FORMATION
CRETACEOUS
AUSTRAL BASIN
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:11336/219854
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, ArgentinaVarela, Augusto NicolásRichiano, Sebastián MiguelPoire, Daniel GustavoTRACE FOSSILSBRACKISH WATERPUESTO EL MORO FORMATIONCRETACEOUSAUSTRAL BASINhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Puesto El Moro Formation (Upper Cretaceous) was originally considered as a continental succession overlying the Piedra Clavada Formation. This unit is exposed in the region of Lake San Martin, near the homonymous Outpost belonging to the Estancia La Lila. The Puesto El Moro Formation is coeval with the Mata Amarilla Formation; both formations are of great interest because they mark the onset of the foreland stage of the Austral Basin. A detailed sedimentological logging at the type locality allows the identification of three main intervals. The lower interval corresponds to a littoral paleoenvironment, and the middle and upper intervals were developed in continental (fluvial) paleoenvironment. The lower littoral interval is composed of an alternation of commonly bioturbated medium-grained sandstone, with greyish flaser-bedded heterolithic deposits, locally exhibiting trace fossils. The ichnofauna is dominated by Thalassinoides isp., accompanied by Ophiomorpha nodosa, Palaeophycus isp. and Sinusichnus sinuosus. This ichnoassociation corresponds to an impoverished Cruziana Ichnofacies developed in a marginal shallow marine palaeoenvironment with salinity stress and / or oxygen depletion. Most of these ichnotaxa are produced by callianassid crustaceans that used the galleries for different purposes, including dwelling (domichnia) and bacteria cultivation (agrichnia). Similar examples, which could be used as analogues for paleoenvironmental characterization, can be found in the Pliocene marginal marine deposits of France and Spain (the type locality of the ichnogenus Sinusichnus), in deltaic deposits of the Oligocene-Miocene of Venezuela, and in the Cretaceous of Antarctica.Fil: Varela, Augusto Nicolás. 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: Richiano, Sebastián Miguel. 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: Poire, Daniel Gustavo. 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; ArgentinaSecond Latin American Symposium on IchnologySanta RosaArgentinaUniversidad Nacional de La PampaInstituto de Ciencias de la Tierra y Ambientales de La PampaUniversidad Nacional de La PampaBedatou, EmilioSostillo, RenataVarela, Julio Adrian2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectSimposioBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219854Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina; Second Latin American Symposium on Ichnology; Santa Rosa; Argentina; 2013; 67-67CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://docplayer.es/10996748-Abstracts-and-intra-symposium-fieldtrip.htmlInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:09Zoai:ri.conicet.gov.ar:11336/219854instacron: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 10:01:09.879CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
title Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
spellingShingle Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
Varela, Augusto Nicolás
TRACE FOSSILS
BRACKISH WATER
PUESTO EL MORO FORMATION
CRETACEOUS
AUSTRAL BASIN
title_short Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
title_full Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
title_fullStr Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
title_full_unstemmed Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
title_sort Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina
dc.creator.none.fl_str_mv Varela, Augusto Nicolás
Richiano, Sebastián Miguel
Poire, Daniel Gustavo
author Varela, Augusto Nicolás
author_facet Varela, Augusto Nicolás
Richiano, Sebastián Miguel
Poire, Daniel Gustavo
author_role author
author2 Richiano, Sebastián Miguel
Poire, Daniel Gustavo
author2_role author
author
dc.contributor.none.fl_str_mv Bedatou, Emilio
Sostillo, Renata
Varela, Julio Adrian
dc.subject.none.fl_str_mv TRACE FOSSILS
BRACKISH WATER
PUESTO EL MORO FORMATION
CRETACEOUS
AUSTRAL BASIN
topic TRACE FOSSILS
BRACKISH WATER
PUESTO EL MORO FORMATION
CRETACEOUS
AUSTRAL BASIN
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 Puesto El Moro Formation (Upper Cretaceous) was originally considered as a continental succession overlying the Piedra Clavada Formation. This unit is exposed in the region of Lake San Martin, near the homonymous Outpost belonging to the Estancia La Lila. The Puesto El Moro Formation is coeval with the Mata Amarilla Formation; both formations are of great interest because they mark the onset of the foreland stage of the Austral Basin. A detailed sedimentological logging at the type locality allows the identification of three main intervals. The lower interval corresponds to a littoral paleoenvironment, and the middle and upper intervals were developed in continental (fluvial) paleoenvironment. The lower littoral interval is composed of an alternation of commonly bioturbated medium-grained sandstone, with greyish flaser-bedded heterolithic deposits, locally exhibiting trace fossils. The ichnofauna is dominated by Thalassinoides isp., accompanied by Ophiomorpha nodosa, Palaeophycus isp. and Sinusichnus sinuosus. This ichnoassociation corresponds to an impoverished Cruziana Ichnofacies developed in a marginal shallow marine palaeoenvironment with salinity stress and / or oxygen depletion. Most of these ichnotaxa are produced by callianassid crustaceans that used the galleries for different purposes, including dwelling (domichnia) and bacteria cultivation (agrichnia). Similar examples, which could be used as analogues for paleoenvironmental characterization, can be found in the Pliocene marginal marine deposits of France and Spain (the type locality of the ichnogenus Sinusichnus), in deltaic deposits of the Oligocene-Miocene of Venezuela, and in the Cretaceous of Antarctica.
Fil: Varela, Augusto Nicolás. 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: Richiano, Sebastián Miguel. 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: Poire, Daniel Gustavo. 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
Second Latin American Symposium on Ichnology
Santa Rosa
Argentina
Universidad Nacional de La Pampa
Instituto de Ciencias de la Tierra y Ambientales de La Pampa
description The Puesto El Moro Formation (Upper Cretaceous) was originally considered as a continental succession overlying the Piedra Clavada Formation. This unit is exposed in the region of Lake San Martin, near the homonymous Outpost belonging to the Estancia La Lila. The Puesto El Moro Formation is coeval with the Mata Amarilla Formation; both formations are of great interest because they mark the onset of the foreland stage of the Austral Basin. A detailed sedimentological logging at the type locality allows the identification of three main intervals. The lower interval corresponds to a littoral paleoenvironment, and the middle and upper intervals were developed in continental (fluvial) paleoenvironment. The lower littoral interval is composed of an alternation of commonly bioturbated medium-grained sandstone, with greyish flaser-bedded heterolithic deposits, locally exhibiting trace fossils. The ichnofauna is dominated by Thalassinoides isp., accompanied by Ophiomorpha nodosa, Palaeophycus isp. and Sinusichnus sinuosus. This ichnoassociation corresponds to an impoverished Cruziana Ichnofacies developed in a marginal shallow marine palaeoenvironment with salinity stress and / or oxygen depletion. Most of these ichnotaxa are produced by callianassid crustaceans that used the galleries for different purposes, including dwelling (domichnia) and bacteria cultivation (agrichnia). Similar examples, which could be used as analogues for paleoenvironmental characterization, can be found in the Pliocene marginal marine deposits of France and Spain (the type locality of the ichnogenus Sinusichnus), in deltaic deposits of the Oligocene-Miocene of Venezuela, and in the Cretaceous of Antarctica.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Simposio
Book
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/11336/219854
Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina; Second Latin American Symposium on Ichnology; Santa Rosa; Argentina; 2013; 67-67
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219854
identifier_str_mv Ichnology of the brackish water intervals of the Puesto el Moro Formation, Upper Cretaceous, Austral Basin, Argentina; Second Latin American Symposium on Ichnology; Santa Rosa; Argentina; 2013; 67-67
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://docplayer.es/10996748-Abstracts-and-intra-symposium-fieldtrip.html
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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 Internacional
dc.publisher.none.fl_str_mv Universidad Nacional de La Pampa
publisher.none.fl_str_mv Universidad Nacional de La Pampa
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