The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico

The Triassic and Jurassic geology of northern Sonora encompasses important events that are linked to the late Paleozoic history of the region. The fossiliferous El Antimonio Group in the Sierra del Álamo includes the upper Permian-Triassic An - timonio, and Río Asunción formations and the Hettangian...

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Autores: Carlos M. González-León, George D. Stanley Jr., Timothy F. Lawton, József Pálfy, Montana S. Hodges
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:94353719011
Acceso en línea:https://www.redalyc.org/articulo.oa?id=94353719011
https://www.redalyc.org/journal/943/94353719011/
https://www.redalyc.org/journal/943/94353719011/html/
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Access Level:acceso abierto
Palabra clave:Ciencias de la Tierra
Triassic
Jurassic
biostratigraphy
Cucurpe Formation
El Antimonio Group
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spelling The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest MexicoCarlos M. González-LeónGeorge D. Stanley Jr.Timothy F. LawtonJózsef PálfyMontana S. HodgesCiencias de la TierraTriassicJurassicbiostratigraphyCucurpe FormationEl Antimonio GroupThe Triassic and Jurassic geology of northern Sonora encompasses important events that are linked to the late Paleozoic history of the region. The fossiliferous El Antimonio Group in the Sierra del Álamo includes the upper Permian-Triassic An - timonio, and Río Asunción formations and the Hettangian-Sinemurian Sierra de Santa Rosa Formation. These formations consist of upward-fining sequences from I to XIV that represent fluvial to shallow and deep marine environments of depo - sition. The Triassic/Jurassic boundary in this region is a hiatus represented by a dis - conformity between sequence IX of the Río Asunción formations and sequence X of the Sierra de Santa Rosa Formation. The shallow to deep marine succession of the Sierra de Santa Rosa composes the upper part of the Sierra de Santa Rosa Formation that ranges in age from late Sinemurian to early Pliensbachian. Ages of the Permian to Triassic plutonic rocks of northwesternmost Sonora, the Mojave Desert and the Jurassic continental mar - gin Nazas arc that crossed through north - ern Sonora, are also well recorded by igneous clasts and detrital zircon grains that have been dated from the El Antimo - nio Group and other Jurassic formations of this region. The upper Oxfordian-low - er Tithonian Cucurpe Formation in north-central Sonora recorded the onset of continental extension and incursion of marine waters from the Gulf of Mexico into northwestern Mexico, once activity of the Jurassic magmatic arc ended.Sociedad Geológica Mexicana, A.C.2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf1405-3322https://www.redalyc.org/articulo.oa?id=94353719011https://www.redalyc.org/journal/943/94353719011/https://www.redalyc.org/journal/943/94353719011/html/https://www.redalyc.org/journal/943/94353719011/94353719011.epubhttps://www.redalyc.org/journal/943/94353719011/movilBoletín de la Sociedad Geológica Mexicana (México) Num.3 Vol.69reponame:Redalyc-UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenhttp://www.redalyc.org/revista.oa?id=943Boletín de la Sociedad Geológica Mexicanainfo:eu-repo/semantics/openAccessoai:redalyc.org:943537190112025-09-03T18:08:47Z
dc.title.none.fl_str_mv The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
title The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
spellingShingle The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
Carlos M. González-León
Ciencias de la Tierra
Triassic
Jurassic
biostratigraphy
Cucurpe Formation
El Antimonio Group
title_short The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
title_full The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
title_fullStr The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
title_full_unstemmed The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
title_sort The Triassic/Jurassic boundary and the Jurassic stratigraphy and biostratigraphy of northern Sonora, northwest Mexico
dc.creator.none.fl_str_mv Carlos M. González-León
George D. Stanley Jr.
Timothy F. Lawton
József Pálfy
Montana S. Hodges
author Carlos M. González-León
author_facet Carlos M. González-León
George D. Stanley Jr.
Timothy F. Lawton
József Pálfy
Montana S. Hodges
author_role author
author2 George D. Stanley Jr.
Timothy F. Lawton
József Pálfy
Montana S. Hodges
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias de la Tierra
Triassic
Jurassic
biostratigraphy
Cucurpe Formation
El Antimonio Group
topic Ciencias de la Tierra
Triassic
Jurassic
biostratigraphy
Cucurpe Formation
El Antimonio Group
description The Triassic and Jurassic geology of northern Sonora encompasses important events that are linked to the late Paleozoic history of the region. The fossiliferous El Antimonio Group in the Sierra del Álamo includes the upper Permian-Triassic An - timonio, and Río Asunción formations and the Hettangian-Sinemurian Sierra de Santa Rosa Formation. These formations consist of upward-fining sequences from I to XIV that represent fluvial to shallow and deep marine environments of depo - sition. The Triassic/Jurassic boundary in this region is a hiatus represented by a dis - conformity between sequence IX of the Río Asunción formations and sequence X of the Sierra de Santa Rosa Formation. The shallow to deep marine succession of the Sierra de Santa Rosa composes the upper part of the Sierra de Santa Rosa Formation that ranges in age from late Sinemurian to early Pliensbachian. Ages of the Permian to Triassic plutonic rocks of northwesternmost Sonora, the Mojave Desert and the Jurassic continental mar - gin Nazas arc that crossed through north - ern Sonora, are also well recorded by igneous clasts and detrital zircon grains that have been dated from the El Antimo - nio Group and other Jurassic formations of this region. The upper Oxfordian-low - er Tithonian Cucurpe Formation in north-central Sonora recorded the onset of continental extension and incursion of marine waters from the Gulf of Mexico into northwestern Mexico, once activity of the Jurassic magmatic arc ended.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 1405-3322
https://www.redalyc.org/articulo.oa?id=94353719011
https://www.redalyc.org/journal/943/94353719011/
https://www.redalyc.org/journal/943/94353719011/html/
https://www.redalyc.org/journal/943/94353719011/94353719011.epub
https://www.redalyc.org/journal/943/94353719011/movil
identifier_str_mv 1405-3322
url https://www.redalyc.org/articulo.oa?id=94353719011
https://www.redalyc.org/journal/943/94353719011/
https://www.redalyc.org/journal/943/94353719011/html/
https://www.redalyc.org/journal/943/94353719011/94353719011.epub
https://www.redalyc.org/journal/943/94353719011/movil
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=943
dc.rights.none.fl_str_mv Boletín de la Sociedad Geológica Mexicana
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Boletín de la Sociedad Geológica Mexicana
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica Mexicana, A.C.
publisher.none.fl_str_mv Sociedad Geológica Mexicana, A.C.
dc.source.none.fl_str_mv Boletín de la Sociedad Geológica Mexicana (México) Num.3 Vol.69
reponame:Redalyc-UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Redalyc-UNAM
collection Redalyc-UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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