An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model

In most oxygen-deficient ancient successions, Chondrites and Zoophycos are typical and recurrent trace fossils that are the last to disappear during deoxygenation events. Here, we report an unusual case of an oxygen-deficient ichnofauna lacking Chondrites and showing scarce Zoophycos, from the Upper...

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Autores: Paz, Maximiliano, Mángano, M. Gabriela, Buatois, Luis A., Desjardins, Patricio R., Minisini, Daniel, González Tomassini, Federico, Rodriguez, Maximiliano Nicolás, Pereira, Egberto, Parada, Martín Nazareno
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/227451
Acceso en línea:http://hdl.handle.net/11336/227451
Access Level:acceso abierto
Palabra clave:Mudstone
Chondrites
Cryptobioturbation
Zoophycos Ichnofacies
Ichnology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/227451
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
title An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
spellingShingle An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
Paz, Maximiliano
Mudstone
Chondrites
Cryptobioturbation
Zoophycos Ichnofacies
Ichnology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
title_full An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
title_fullStr An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
title_full_unstemmed An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
title_sort An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model
dc.creator.none.fl_str_mv Paz, Maximiliano
Mángano, M. Gabriela
Buatois, Luis A.
Desjardins, Patricio R.
Minisini, Daniel
González Tomassini, Federico
Rodriguez, Maximiliano Nicolás
Pereira, Egberto
Parada, Martín Nazareno
author Paz, Maximiliano
author_facet Paz, Maximiliano
Mángano, M. Gabriela
Buatois, Luis A.
Desjardins, Patricio R.
Minisini, Daniel
González Tomassini, Federico
Rodriguez, Maximiliano Nicolás
Pereira, Egberto
Parada, Martín Nazareno
author_role author
author2 Mángano, M. Gabriela
Buatois, Luis A.
Desjardins, Patricio R.
Minisini, Daniel
González Tomassini, Federico
Rodriguez, Maximiliano Nicolás
Pereira, Egberto
Parada, Martín Nazareno
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Mudstone
Chondrites
Cryptobioturbation
Zoophycos Ichnofacies
Ichnology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Mudstone
Chondrites
Cryptobioturbation
Zoophycos Ichnofacies
Ichnology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description In most oxygen-deficient ancient successions, Chondrites and Zoophycos are typical and recurrent trace fossils that are the last to disappear during deoxygenation events. Here, we report an unusual case of an oxygen-deficient ichnofauna lacking Chondrites and showing scarce Zoophycos, from the Upper Jurassic-Lower Cretaceous Vaca Muerta Formation of Argentina. One outcrop and cores from nine wells were analysed. The succession comprises fine-grained, mixed carbonate-siliciclastic deposits accumu-lated in marginal-marine, basin, drift, slope, and outer ramp environments. It displays abundant biodeformational structures mostly producing irregular-laminated and mas-sive fabrics in fine to medium mudstone. However, discrete trace fossils can be found within interbedded coarser-grained intervals, namely (in order of decreased ichnogen-era abundance), Teichichnus, Alcyonidiopsis, Coprulus, Phycosiphon, Planolites, Lockeia, Thalassinoides, Palaeophycus, Nereites, Crininicaminus, Zoophycos, Diplocraterion, and?Skolithos. Considering all ichnotaxa, the Vaca Muerta Formation may be seen as host-ing a relatively diverse ichnofauna, yet, this is misleading because most occurrences are of low diversity. This atypical ichnofauna may be explained by either a lack of strong sea-sonality and existence of background food-rich environments, or by salinity variations, precluding the specialized feeding style of the Chondrites and Zoophycos producers. The dominance of feeding trace fossils with spreite (Teichichnus) and the low ichnodiversity suggest that the studied ichnofauna belongs to the Zoophycos Ichnofacies.
publishDate 2023
dc.date.none.fl_str_mv 2023-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/227451
Paz, Maximiliano; Mángano, M. Gabriela; Buatois, Luis A.; Desjardins, Patricio R.; Minisini, Daniel; et al.; An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model; Wiley Blackwell Publishing, Inc; Lethaia; 56; 4; 12-2023; 1-31
0024-1164
CONICET Digital
CONICET
url http://hdl.handle.net/11336/227451
identifier_str_mv Paz, Maximiliano; Mángano, M. Gabriela; Buatois, Luis A.; Desjardins, Patricio R.; Minisini, Daniel; et al.; An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model; Wiley Blackwell Publishing, Inc; Lethaia; 56; 4; 12-2023; 1-31
0024-1164
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://www.idunn.no/doi/10.18261/let.56.4.5
info:eu-repo/semantics/altIdentifier/doi/10.18261/let.56.4.5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799195866955776000
spelling An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies modelPaz, MaximilianoMángano, M. GabrielaBuatois, Luis A.Desjardins, Patricio R.Minisini, DanielGonzález Tomassini, FedericoRodriguez, Maximiliano NicolásPereira, EgbertoParada, Martín NazarenoMudstoneChondritesCryptobioturbationZoophycos IchnofaciesIchnologyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In most oxygen-deficient ancient successions, Chondrites and Zoophycos are typical and recurrent trace fossils that are the last to disappear during deoxygenation events. Here, we report an unusual case of an oxygen-deficient ichnofauna lacking Chondrites and showing scarce Zoophycos, from the Upper Jurassic-Lower Cretaceous Vaca Muerta Formation of Argentina. One outcrop and cores from nine wells were analysed. The succession comprises fine-grained, mixed carbonate-siliciclastic deposits accumu-lated in marginal-marine, basin, drift, slope, and outer ramp environments. It displays abundant biodeformational structures mostly producing irregular-laminated and mas-sive fabrics in fine to medium mudstone. However, discrete trace fossils can be found within interbedded coarser-grained intervals, namely (in order of decreased ichnogen-era abundance), Teichichnus, Alcyonidiopsis, Coprulus, Phycosiphon, Planolites, Lockeia, Thalassinoides, Palaeophycus, Nereites, Crininicaminus, Zoophycos, Diplocraterion, and?Skolithos. Considering all ichnotaxa, the Vaca Muerta Formation may be seen as host-ing a relatively diverse ichnofauna, yet, this is misleading because most occurrences are of low diversity. This atypical ichnofauna may be explained by either a lack of strong sea-sonality and existence of background food-rich environments, or by salinity variations, precluding the specialized feeding style of the Chondrites and Zoophycos producers. The dominance of feeding trace fossils with spreite (Teichichnus) and the low ichnodiversity suggest that the studied ichnofauna belongs to the Zoophycos Ichnofacies.Fil: Paz, Maximiliano. University of Saskatchewan; CanadáFil: Mángano, M. Gabriela. University of Saskatchewan; CanadáFil: Buatois, Luis A.. University of Saskatchewan; CanadáFil: Desjardins, Patricio R.. Shell Exploration And Production Company; Estados UnidosFil: Minisini, Daniel. Shell Technology Center Houston; Estados Unidos. Rice University; Estados UnidosFil: González Tomassini, Federico. Phoenix Global Resources; ArgentinaFil: Rodriguez, Maximiliano Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Pereira, Egberto. Universidade do Estado de Rio do Janeiro; BrasilFil: Parada, Martín Nazareno. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaWiley Blackwell Publishing, Inc2023-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/227451Paz, Maximiliano; Mángano, M. Gabriela; Buatois, Luis A.; Desjardins, Patricio R.; Minisini, Daniel; et al.; An unusual oxygen-deficient ichnofauna from the Vaca Muerta Formation: Implications for the ichnofacies model; Wiley Blackwell Publishing, Inc; Lethaia; 56; 4; 12-2023; 1-310024-1164CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.idunn.no/doi/10.18261/let.56.4.5info:eu-repo/semantics/altIdentifier/doi/10.18261/let.56.4.5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:06:29Zoai:ri.conicet.gov.ar:11336/227451instacron: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:34982024-05-08 14:06:29.513CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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