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
- Institución
- Universidad Nacional de Río Negro
- OAI Identificador
- oai:rid.unrn.edu.ar:20.500.12049/5340
Ver los metadatos del registro completo
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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 Negro2025-09-29T14:28:49Zoai: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:43692025-09-29 14:28:49.926RID-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 |
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reponame:RID-UNRN (UNRN) instname:Universidad Nacional de Río Negro |
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RID-UNRN (UNRN) |
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RID-UNRN (UNRN) |
instname_str |
Universidad Nacional de Río Negro |
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RID-UNRN (UNRN) - Universidad Nacional de Río Negro |
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rid@unrn.edu.ar |
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12.559606 |