An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina

Autores
Cichowolski, Marcela; Pazos, Pablo J.; Tunik, Maisa A.; Aguirre Urreta, Beatriz
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Cichowolski, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.
Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos “Don Pablo Groeber". Buenos Aires, Argentina.
An exceptional accumulation of nautilid shells of the species Cymatoceras perstriatum (Steuer) is reported and described in the Lower Cretaceous Agrio Formation of the Neuque´n Basin (west-central Argentina). The bed represents a storm deposit in a shallowwater environment within the mid-ramp. The evidences of a storm-related origin of the bed come from the petrographic analysis and taphonomic features of the shells, specially the sedimentary infill pattern. The shells are dispersed in patches within the stratum, without any orientation relative to the bedding plane. It is proposed that the shells were floating after the death of the animals, although most of them have an almost complete living chamber. The presence of some heavily encrusted shells suggests that there is a mixing of specimens with different drift times. A variety of factors related to the origin of such high number of nautilid shells are discussed, including a transgressive stand system tract, the possible existence of a gregarious behaviour, changes in salinity and wind directions. h Lower Cretaceous, Nautilids, Neuque´n Basin, shell accumulation, storm deposit.
Materia
Cretaceous
Neuquén Basin
Storm
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5340
Acceder
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, ArgentinaCichowolski, MarcelaPazos, Pablo J.Tunik, Maisa A.Aguirre Urreta, BeatrizCretaceousNeuquén BasinStormFil: Cichowolski, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos “Don Pablo Groeber". Buenos Aires, Argentina.An exceptional accumulation of nautilid shells of the species Cymatoceras perstriatum (Steuer) is reported and described in the Lower Cretaceous Agrio Formation of the Neuque´n Basin (west-central Argentina). The bed represents a storm deposit in a shallowwater environment within the mid-ramp. The evidences of a storm-related origin of the bed come from the petrographic analysis and taphonomic features of the shells, specially the sedimentary infill pattern. The shells are dispersed in patches within the stratum, without any orientation relative to the bedding plane. It is proposed that the shells were floating after the death of the animals, although most of them have an almost complete living chamber. The presence of some heavily encrusted shells suggests that there is a mixing of specimens with different drift times. A variety of factors related to the origin of such high number of nautilid shells are discussed, including a transgressive stand system tract, the possible existence of a gregarious behaviour, changes in salinity and wind directions. h Lower Cretaceous, Nautilids, Neuque´n Basin, shell accumulation, storm deposit.Wiley2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfCichowolski, Marcela., Pazos, Pablo J., Tunik, Maisa A. y Aguirre Urreta, Beatriz. (2011). An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina. Wiley; Lethaia; 45 (1); 1-180024-11641502-3931https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1502-3931.2011.00271.xhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/5340eng45 (1)Lethaiainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-10-16T10:05:41Zoai:rid.unrn.edu.ar:20.500.12049/5340instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-10-16 10:05:41.873RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
title An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
spellingShingle An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
Cichowolski, Marcela
Cretaceous
Neuquén Basin
Storm
title_short An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
title_full An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
title_fullStr An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
title_full_unstemmed An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
title_sort An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina
dc.creator.none.fl_str_mv Cichowolski, Marcela
Pazos, Pablo J.
Tunik, Maisa A.
Aguirre Urreta, Beatriz
author Cichowolski, Marcela
author_facet Cichowolski, Marcela
Pazos, Pablo J.
Tunik, Maisa A.
Aguirre Urreta, Beatriz
author_role author
author2 Pazos, Pablo J.
Tunik, Maisa A.
Aguirre Urreta, Beatriz
author2_role author
author
author
dc.subject.none.fl_str_mv Cretaceous
Neuquén Basin
Storm
topic Cretaceous
Neuquén Basin
Storm
dc.description.none.fl_txt_mv Fil: Cichowolski, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.
Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos “Don Pablo Groeber". Buenos Aires, Argentina.
An exceptional accumulation of nautilid shells of the species Cymatoceras perstriatum (Steuer) is reported and described in the Lower Cretaceous Agrio Formation of the Neuque´n Basin (west-central Argentina). The bed represents a storm deposit in a shallowwater environment within the mid-ramp. The evidences of a storm-related origin of the bed come from the petrographic analysis and taphonomic features of the shells, specially the sedimentary infill pattern. The shells are dispersed in patches within the stratum, without any orientation relative to the bedding plane. It is proposed that the shells were floating after the death of the animals, although most of them have an almost complete living chamber. The presence of some heavily encrusted shells suggests that there is a mixing of specimens with different drift times. A variety of factors related to the origin of such high number of nautilid shells are discussed, including a transgressive stand system tract, the possible existence of a gregarious behaviour, changes in salinity and wind directions. h Lower Cretaceous, Nautilids, Neuque´n Basin, shell accumulation, storm deposit.
description Fil: Cichowolski, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. IDEAN. Buenos Aires, Argentina.
publishDate 2011
dc.date.none.fl_str_mv 2011
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 Cichowolski, Marcela., Pazos, Pablo J., Tunik, Maisa A. y Aguirre Urreta, Beatriz. (2011). An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina. Wiley; Lethaia; 45 (1); 1-18
0024-1164
1502-3931
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1502-3931.2011.00271.x
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5340
identifier_str_mv Cichowolski, Marcela., Pazos, Pablo J., Tunik, Maisa A. y Aguirre Urreta, Beatriz. (2011). An exceptional storm accumulation of nautilids in the Lower Cretaceous of the Neuquén Basin, Argentina. Wiley; Lethaia; 45 (1); 1-18
0024-1164
1502-3931
url https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1502-3931.2011.00271.x
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5340
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 45 (1)
Lethaia
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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score 12.712165

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