Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve

Detalhes bibliográficos
Autor(a) principal: Antunes, M. Telles
Data de Publicação: 2008
Outros Autores: Odin, G., Pais, João
Tipo de documento: Artigo
Idioma: fra
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/1540
Resumo: Glauconite K-Ar ages (6.88±0.4; 7.03±0.4 MY) confirm earlier reports to Upper Tortonian of silt beds near Morgadinho, Luz de Tavira and Tavira. Taking stratigraphical position and age into account it is possible now to correlate these beds with similar ones at Quelfes and Cacela (Formação de Cacela, lower member, ascribed to the upper part of N16 or to NI7 Blow's zone, Globorotalia humerosa - G. dutertrei; Tortonian to Messinian, according to the ostracod fauna). Limit between the above quoted zones is thus placed at about 7 MY. New K-Ar ages greatly improve the knowledge about Upper Miocene in eastern Algarve, and on regional tectonic evolution. This is particulary so in what concerns an intra-Tortonian phase.
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spelling Âges K-Ar de glauconites des environs de Luz de Tavira, AlgarveK-Ar agesGlauconitic siltsEastern AlgarveUpper MioceneGlauconite K-Ar ages (6.88±0.4; 7.03±0.4 MY) confirm earlier reports to Upper Tortonian of silt beds near Morgadinho, Luz de Tavira and Tavira. Taking stratigraphical position and age into account it is possible now to correlate these beds with similar ones at Quelfes and Cacela (Formação de Cacela, lower member, ascribed to the upper part of N16 or to NI7 Blow's zone, Globorotalia humerosa - G. dutertrei; Tortonian to Messinian, according to the ostracod fauna). Limit between the above quoted zones is thus placed at about 7 MY. New K-Ar ages greatly improve the knowledge about Upper Miocene in eastern Algarve, and on regional tectonic evolution. This is particulary so in what concerns an intra-Tortonian phase.RUNAntunes, M. TellesOdin, G.Pais, João2008-08-13T22:11:33Z2008-08-13T22:11:33Z2008-08-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/1540frainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T03:31:33Zoai:run.unl.pt:10362/1540Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:14:45.068155Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
title Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
spellingShingle Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
Antunes, M. Telles
K-Ar ages
Glauconitic silts
Eastern Algarve
Upper Miocene
title_short Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
title_full Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
title_fullStr Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
title_full_unstemmed Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
title_sort Âges K-Ar de glauconites des environs de Luz de Tavira, Algarve
author Antunes, M. Telles
author_facet Antunes, M. Telles
Odin, G.
Pais, João
author_role author
author2 Odin, G.
Pais, João
author2_role author
author
dc.contributor.none.fl_str_mv RUN
dc.contributor.author.fl_str_mv Antunes, M. Telles
Odin, G.
Pais, João
dc.subject.por.fl_str_mv K-Ar ages
Glauconitic silts
Eastern Algarve
Upper Miocene
topic K-Ar ages
Glauconitic silts
Eastern Algarve
Upper Miocene
description Glauconite K-Ar ages (6.88±0.4; 7.03±0.4 MY) confirm earlier reports to Upper Tortonian of silt beds near Morgadinho, Luz de Tavira and Tavira. Taking stratigraphical position and age into account it is possible now to correlate these beds with similar ones at Quelfes and Cacela (Formação de Cacela, lower member, ascribed to the upper part of N16 or to NI7 Blow's zone, Globorotalia humerosa - G. dutertrei; Tortonian to Messinian, according to the ostracod fauna). Limit between the above quoted zones is thus placed at about 7 MY. New K-Ar ages greatly improve the knowledge about Upper Miocene in eastern Algarve, and on regional tectonic evolution. This is particulary so in what concerns an intra-Tortonian phase.
publishDate 2008
dc.date.none.fl_str_mv 2008-08-13T22:11:33Z
2008-08-13T22:11:33Z
2008-08-13
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