Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Arge...
- Autores
- Pazos, Pablo J.; Lazo, Darío G.; Tunik, Maisa A.; Marsicano, Claudia; Fernández, Diana E.; Aguirre Urreta, Beatriz
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.
Fil: Lazo, Dario G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Departamento de Geología. Río Negro, Argentina.
Fil: Marsicano, Claudia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.
Fil: Fernández, Diana E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.
Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.
Fil: Pazos, Pablo J. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Fil: Lazo, Dario G. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Fil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Fil: Marsicano, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Fil: Fernández, Diana E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Fil: Aguirre Urreta, Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
The study of the uppermost section of the Early Cretaceous Agrio Formation in northern Patagonia (Neuquén Basin) where dinosaur tracks assigned to cf. Therangospodus pandemicus are exposed (tracksites I and II) evidence mixed marginal marine siliciclastic-carbonate deposits. The succession was divided in two intervals. A lower one containing theropod tracks, recorded on top of subtidal oolithic limestones with tiny wave ripples suggesting shoreline fluctuations and subaerial exposure. Tidal influence is recognised by fining upward and prograding cycles starting with subtidal carbonates and ending with fine-grained siliciclastic deposits at the top, or rarely laminites. Dolomitization affects subtidal deposits generated in an alkaline media stressful for tracemakers. Intertidal facies include abundant heterolithic deposits, coquinas composed of gastropods encrusted by multilayered bryozoans and muddy levels with incipient mud cracking. Invertebrate ichnofossils recognized from tidally dominated deposits include Arenicolites, Kouphichnium, and Rhizocorallium. The upper interval is a transgressive–regressive cycle that starts with dark shales, deficiently oxygenated, and covered by prograding sandstones and finally sand flat deposits. This interval contains Gyrochorte, Hillichnus, and Ophiomorpha documented in wave-influenced sandstones. Dinosaur tracks as well as Hillichnus, attributed to tellinoid bivalves, and Kouphichnium assigned to xiphosurans, imply the activity of producers rarely recorded previously as body fossils in marginal marine deposits of southern South America. Previous paleogeographic schemes are questioned by our analysis, which shows evidence of extremely shallow and tide-controlled sedimentation, sometimes with subaerial exposure, with high cyclicity related to a marginal marine depositional setting and lack of significant erosion by the overlying unit, as traditionally was suggested. - Materia
-
Tidal Cycles
Dinosaur Tracks
Cretaceous
Carbonates
Neuquén Basin
Patagonia
Argentina - 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:20.500.12049/5342
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Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina)Pazos, Pablo J.Lazo, Darío G.Tunik, Maisa A.Marsicano, ClaudiaFernández, Diana E.Aguirre Urreta, BeatrizTidal CyclesDinosaur TracksCretaceousCarbonatesNeuquén BasinPatagoniaArgentinaFil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.Fil: Lazo, Dario G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Departamento de Geología. Río Negro, Argentina.Fil: Marsicano, Claudia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.Fil: Fernández, Diana E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina.Fil: Pazos, Pablo J. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaFil: Lazo, Dario G. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaFil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaFil: Marsicano, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaFil: Fernández, Diana E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaFil: Aguirre Urreta, Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaThe study of the uppermost section of the Early Cretaceous Agrio Formation in northern Patagonia (Neuquén Basin) where dinosaur tracks assigned to cf. Therangospodus pandemicus are exposed (tracksites I and II) evidence mixed marginal marine siliciclastic-carbonate deposits. The succession was divided in two intervals. A lower one containing theropod tracks, recorded on top of subtidal oolithic limestones with tiny wave ripples suggesting shoreline fluctuations and subaerial exposure. Tidal influence is recognised by fining upward and prograding cycles starting with subtidal carbonates and ending with fine-grained siliciclastic deposits at the top, or rarely laminites. Dolomitization affects subtidal deposits generated in an alkaline media stressful for tracemakers. Intertidal facies include abundant heterolithic deposits, coquinas composed of gastropods encrusted by multilayered bryozoans and muddy levels with incipient mud cracking. Invertebrate ichnofossils recognized from tidally dominated deposits include Arenicolites, Kouphichnium, and Rhizocorallium. The upper interval is a transgressive–regressive cycle that starts with dark shales, deficiently oxygenated, and covered by prograding sandstones and finally sand flat deposits. This interval contains Gyrochorte, Hillichnus, and Ophiomorpha documented in wave-influenced sandstones. Dinosaur tracks as well as Hillichnus, attributed to tellinoid bivalves, and Kouphichnium assigned to xiphosurans, imply the activity of producers rarely recorded previously as body fossils in marginal marine deposits of southern South America. Previous paleogeographic schemes are questioned by our analysis, which shows evidence of extremely shallow and tide-controlled sedimentation, sometimes with subaerial exposure, with high cyclicity related to a marginal marine depositional setting and lack of significant erosion by the overlying unit, as traditionally was suggested.Elsevier2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfPazos, Pablo J., Lazo, Darío G., Tunik, Maisa A., Marsicano, Claudia., Fernández, Diana E. y Aguirre Urreta, Beatriz (2012). Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina). Elsevier; Gondwana Research; 22 (3-4); 1125-11401342-937Xhttps://www.sciencedirect.com/science/article/pii/S1342937X12000433?via%3Dihub#!https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5342https://doi.org/10.1016/j.gr.2012.02.003eng22 (3-4)Gondwana Researchinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:29:07Zoai:rid.unrn.edu.ar:20.500.12049/5342instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:07.625RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse |
dc.title.none.fl_str_mv |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
title |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
spellingShingle |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) Pazos, Pablo J. Tidal Cycles Dinosaur Tracks Cretaceous Carbonates Neuquén Basin Patagonia Argentina |
title_short |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
title_full |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
title_fullStr |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
title_full_unstemmed |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
title_sort |
Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina) |
dc.creator.none.fl_str_mv |
Pazos, Pablo J. Lazo, Darío G. Tunik, Maisa A. Marsicano, Claudia Fernández, Diana E. Aguirre Urreta, Beatriz |
author |
Pazos, Pablo J. |
author_facet |
Pazos, Pablo J. Lazo, Darío G. Tunik, Maisa A. Marsicano, Claudia Fernández, Diana E. Aguirre Urreta, Beatriz |
author_role |
author |
author2 |
Lazo, Darío G. Tunik, Maisa A. Marsicano, Claudia Fernández, Diana E. Aguirre Urreta, Beatriz |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Tidal Cycles Dinosaur Tracks Cretaceous Carbonates Neuquén Basin Patagonia Argentina |
topic |
Tidal Cycles Dinosaur Tracks Cretaceous Carbonates Neuquén Basin Patagonia Argentina |
dc.description.none.fl_txt_mv |
Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. Fil: Lazo, Dario G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Departamento de Geología. Río Negro, Argentina. Fil: Marsicano, Claudia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. Fil: Fernández, Diana E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. Fil: Aguirre Urreta, Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. Fil: Pazos, Pablo J. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina Fil: Lazo, Dario G. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina Fil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina Fil: Marsicano, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina Fil: Fernández, Diana E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina Fil: Aguirre Urreta, Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina The study of the uppermost section of the Early Cretaceous Agrio Formation in northern Patagonia (Neuquén Basin) where dinosaur tracks assigned to cf. Therangospodus pandemicus are exposed (tracksites I and II) evidence mixed marginal marine siliciclastic-carbonate deposits. The succession was divided in two intervals. A lower one containing theropod tracks, recorded on top of subtidal oolithic limestones with tiny wave ripples suggesting shoreline fluctuations and subaerial exposure. Tidal influence is recognised by fining upward and prograding cycles starting with subtidal carbonates and ending with fine-grained siliciclastic deposits at the top, or rarely laminites. Dolomitization affects subtidal deposits generated in an alkaline media stressful for tracemakers. Intertidal facies include abundant heterolithic deposits, coquinas composed of gastropods encrusted by multilayered bryozoans and muddy levels with incipient mud cracking. Invertebrate ichnofossils recognized from tidally dominated deposits include Arenicolites, Kouphichnium, and Rhizocorallium. The upper interval is a transgressive–regressive cycle that starts with dark shales, deficiently oxygenated, and covered by prograding sandstones and finally sand flat deposits. This interval contains Gyrochorte, Hillichnus, and Ophiomorpha documented in wave-influenced sandstones. Dinosaur tracks as well as Hillichnus, attributed to tellinoid bivalves, and Kouphichnium assigned to xiphosurans, imply the activity of producers rarely recorded previously as body fossils in marginal marine deposits of southern South America. Previous paleogeographic schemes are questioned by our analysis, which shows evidence of extremely shallow and tide-controlled sedimentation, sometimes with subaerial exposure, with high cyclicity related to a marginal marine depositional setting and lack of significant erosion by the overlying unit, as traditionally was suggested. |
description |
Fil: Pazos, Pablo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. IDEAN. Buenos Aires, Argentina. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-11 |
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 |
Pazos, Pablo J., Lazo, Darío G., Tunik, Maisa A., Marsicano, Claudia., Fernández, Diana E. y Aguirre Urreta, Beatriz (2012). Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina). Elsevier; Gondwana Research; 22 (3-4); 1125-1140 1342-937X https://www.sciencedirect.com/science/article/pii/S1342937X12000433?via%3Dihub#! https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5342 https://doi.org/10.1016/j.gr.2012.02.003 |
identifier_str_mv |
Pazos, Pablo J., Lazo, Darío G., Tunik, Maisa A., Marsicano, Claudia., Fernández, Diana E. y Aguirre Urreta, Beatriz (2012). Paleoenvironmental framework of dinosaur tracksites and other ichnofossils in Early Cretaceous mixed siliciclastic-carbonate deposits in the Neuquén Basin, northern Patagonia (Argentina). Elsevier; Gondwana Research; 22 (3-4); 1125-1140 1342-937X |
url |
https://www.sciencedirect.com/science/article/pii/S1342937X12000433?via%3Dihub#! https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5342 https://doi.org/10.1016/j.gr.2012.02.003 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
22 (3-4) Gondwana Research |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/4.0/ |
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Elsevier |
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Elsevier |
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