The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.

The Jurassic ammonites of the Cordillera de Domeyko have been studied in several monographies. The classic memoirs of Steinmann (1881), Tornquist (1898), Burckhardt (1903) and Stehn (1923) are particularly relevant. However, the biostratigraphic problems concerning stage boundaries arisen only in re...

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Detalles Bibliográficos
Autores: Fernández López, Sixto Rafael, Chong, G., Quinzio, L.A., Wilke, H.G.
Tipo de recurso: artículo
Fecha de publicación:1994
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/58492
Acceso en línea:https://hdl.handle.net/20.500.14352/58492
Access Level:acceso abierto
Palabra clave:564.53(83)
Middle Jurassic
Bajocian
Bathonian
Ammonitina
Biostratigraphy
Biochronology
Andes
South-America
Chile
Paleontología
2416 Paleontología
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spelling The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.Fernández López, Sixto RafaelChong, G.Quinzio, L.A.Wilke, H.G.564.53(83)Middle JurassicBajocianBathonianAmmonitinaBiostratigraphyBiochronologyAndesSouth-AmericaChilePaleontología2416 PaleontologíaThe Jurassic ammonites of the Cordillera de Domeyko have been studied in several monographies. The classic memoirs of Steinmann (1881), Tornquist (1898), Burckhardt (1903) and Stehn (1923) are particularly relevant. However, the biostratigraphic problems concerning stage boundaries arisen only in recent dates. New sedimentological and biostratigraphical data have been obtained in relation to the Bajocian/Bathonian of this region. Several sections have been studied in two separate areas : Caracoles and Sierra de Varas. More than one thousand ammonites were collected in situ from these localities. Facies analysis shows that sedimentation during Late Bajocian and Bathonian occurs in a marine environment on a carbonate platform with abundant siliciclastic supply. Facies distribution was controlled by structural segmentation of the platform and processes of differential subsidence. The stratigraphical-sedimentological results together with taphonomical-palaeoecological observations are a diagnostic tool for sequence analysis. The successive ammonite assemblages which were found have allowed the establishment of four biostratigraphic units, spanning the interval from Upper Bajocian to Upper Bathonian. The sedimentological and biostratigraphical results indicate the existence of a regional discontinuity at the base of the Bathonian.Elsevier B.V.Universidad Complutense de Madrid19941994-01-0119941994-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/58492reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/584922026-06-02T12:44:21Z
dc.title.none.fl_str_mv The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
title The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
spellingShingle The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
Fernández López, Sixto Rafael
564.53(83)
Middle Jurassic
Bajocian
Bathonian
Ammonitina
Biostratigraphy
Biochronology
Andes
South-America
Chile
Paleontología
2416 Paleontología
title_short The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
title_full The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
title_fullStr The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
title_full_unstemmed The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
title_sort The Upper Bajocian and Bathonian in the Cordillera de Domeyko, North-Chilean Precordillera : sedimentological and biostratigraphical results.
dc.creator.none.fl_str_mv Fernández López, Sixto Rafael
Chong, G.
Quinzio, L.A.
Wilke, H.G.
author Fernández López, Sixto Rafael
author_facet Fernández López, Sixto Rafael
Chong, G.
Quinzio, L.A.
Wilke, H.G.
author_role author
author2 Chong, G.
Quinzio, L.A.
Wilke, H.G.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 564.53(83)
Middle Jurassic
Bajocian
Bathonian
Ammonitina
Biostratigraphy
Biochronology
Andes
South-America
Chile
Paleontología
2416 Paleontología
topic 564.53(83)
Middle Jurassic
Bajocian
Bathonian
Ammonitina
Biostratigraphy
Biochronology
Andes
South-America
Chile
Paleontología
2416 Paleontología
description The Jurassic ammonites of the Cordillera de Domeyko have been studied in several monographies. The classic memoirs of Steinmann (1881), Tornquist (1898), Burckhardt (1903) and Stehn (1923) are particularly relevant. However, the biostratigraphic problems concerning stage boundaries arisen only in recent dates. New sedimentological and biostratigraphical data have been obtained in relation to the Bajocian/Bathonian of this region. Several sections have been studied in two separate areas : Caracoles and Sierra de Varas. More than one thousand ammonites were collected in situ from these localities. Facies analysis shows that sedimentation during Late Bajocian and Bathonian occurs in a marine environment on a carbonate platform with abundant siliciclastic supply. Facies distribution was controlled by structural segmentation of the platform and processes of differential subsidence. The stratigraphical-sedimentological results together with taphonomical-palaeoecological observations are a diagnostic tool for sequence analysis. The successive ammonite assemblages which were found have allowed the establishment of four biostratigraphic units, spanning the interval from Upper Bajocian to Upper Bathonian. The sedimentological and biostratigraphical results indicate the existence of a regional discontinuity at the base of the Bathonian.
publishDate 1994
dc.date.none.fl_str_mv 1994
1994-01-01
1994
1994-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/58492
url https://hdl.handle.net/20.500.14352/58492
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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