Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)

Detalhes bibliográficos
Autor(a) principal: Cunha, Pedro Proença
Data de Publicação: 2010
Outros Autores: Pereira, D. I.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/4689
Resumo: In the Longroiva-Vilariça area, the identification of Cenozoic lithostratigraphic units, the sedimentology and the characterization of its geometric relations with tectonic structures allowed the interpretation of the palaeogeographic main stages: 1) the greenwhitish Vilariça Arkoses (Middle Eocene to Oligocene ?) represent proximal sediments of a very low gradient drainage towards the eastern Spanish Tertiary Duero Basin; 2)Quintãs Formation (late Miocene ?) are brown-reddish coloured piedmont alluvial deposits, correlative of important vertical displacement (western tectonic block relative uplift) along the NNE-SSW indent-linked strike-slip Bragança-Vilariça-Longroiva fault zone, interpreted as a reactivated deep hercynian fracture, with left-lateral movement; 3) the red Sampaio Formation (Gelasian-early Pleistocene ?)was interpreted as downhill conglomeratic deposits related with important overtrusting along this fault zone (the definition of the present-day narrow graben configuration) and correlative of the atlantic hydrographic incision stage beginning; 4) conglomeratic terraces (middle and late Pleistocene ?); 5) alluvial plains and colluvial deposits (Holocene).
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spelling Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)lilhostratigraphyalluvial environmentsSiliciclastic depositsneotectonicssedimentary discontinuitiesCenozoicPortugalIn the Longroiva-Vilariça area, the identification of Cenozoic lithostratigraphic units, the sedimentology and the characterization of its geometric relations with tectonic structures allowed the interpretation of the palaeogeographic main stages: 1) the greenwhitish Vilariça Arkoses (Middle Eocene to Oligocene ?) represent proximal sediments of a very low gradient drainage towards the eastern Spanish Tertiary Duero Basin; 2)Quintãs Formation (late Miocene ?) are brown-reddish coloured piedmont alluvial deposits, correlative of important vertical displacement (western tectonic block relative uplift) along the NNE-SSW indent-linked strike-slip Bragança-Vilariça-Longroiva fault zone, interpreted as a reactivated deep hercynian fracture, with left-lateral movement; 3) the red Sampaio Formation (Gelasian-early Pleistocene ?)was interpreted as downhill conglomeratic deposits related with important overtrusting along this fault zone (the definition of the present-day narrow graben configuration) and correlative of the atlantic hydrographic incision stage beginning; 4) conglomeratic terraces (middle and late Pleistocene ?); 5) alluvial plains and colluvial deposits (Holocene).RUNCunha, Pedro ProençaPereira, D. I.2010-12-28T16:20:58Z2010-12-282010-12-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/4689porinfo: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:RCAAP2024-03-11T03:34:36Zoai:run.unl.pt:10362/4689Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:15:49.485979Repositório 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 Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
title Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
spellingShingle Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
Cunha, Pedro Proença
lilhostratigraphy
alluvial environments
Siliciclastic deposits
neotectonics
sedimentary discontinuities
Cenozoic
Portugal
title_short Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
title_full Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
title_fullStr Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
title_full_unstemmed Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
title_sort Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
author Cunha, Pedro Proença
author_facet Cunha, Pedro Proença
Pereira, D. I.
author_role author
author2 Pereira, D. I.
author2_role author
dc.contributor.none.fl_str_mv RUN
dc.contributor.author.fl_str_mv Cunha, Pedro Proença
Pereira, D. I.
dc.subject.por.fl_str_mv lilhostratigraphy
alluvial environments
Siliciclastic deposits
neotectonics
sedimentary discontinuities
Cenozoic
Portugal
topic lilhostratigraphy
alluvial environments
Siliciclastic deposits
neotectonics
sedimentary discontinuities
Cenozoic
Portugal
description In the Longroiva-Vilariça area, the identification of Cenozoic lithostratigraphic units, the sedimentology and the characterization of its geometric relations with tectonic structures allowed the interpretation of the palaeogeographic main stages: 1) the greenwhitish Vilariça Arkoses (Middle Eocene to Oligocene ?) represent proximal sediments of a very low gradient drainage towards the eastern Spanish Tertiary Duero Basin; 2)Quintãs Formation (late Miocene ?) are brown-reddish coloured piedmont alluvial deposits, correlative of important vertical displacement (western tectonic block relative uplift) along the NNE-SSW indent-linked strike-slip Bragança-Vilariça-Longroiva fault zone, interpreted as a reactivated deep hercynian fracture, with left-lateral movement; 3) the red Sampaio Formation (Gelasian-early Pleistocene ?)was interpreted as downhill conglomeratic deposits related with important overtrusting along this fault zone (the definition of the present-day narrow graben configuration) and correlative of the atlantic hydrographic incision stage beginning; 4) conglomeratic terraces (middle and late Pleistocene ?); 5) alluvial plains and colluvial deposits (Holocene).
publishDate 2010
dc.date.none.fl_str_mv 2010-12-28T16:20:58Z
2010-12-28
2010-12-28T00:00:00Z
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