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
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5342
Acceder
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network_acronym_str RIDUNRN
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network_name_str RID-UNRN (UNRN)
spelling 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 Negro2025-10-16T10:05:58Zoai: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:43692025-10-16 10:05:58.8RID-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
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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