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Title: Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)
Authors: Cunha, P. Proença 
Pereira, D. Insua 
Keywords: Litostratigrafia; Ambientes aluviais; Depósitos siliciclásticos; Neotectónica; Descontinuidades sedimentares; Cenozóico
Issue Date: 2000
Publisher: Universidade Nova de Lisboa
Citation: Cunha, Pedro P.; Pereira, D.I.Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal), Ciências da Terra (UNL), 14, 89-198, 2000.
Issue: Ciências da Terra (UNL)
Abstract: 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).
ISSN: 0254-055X
Rights: openAccess
Appears in Collections:I&D CGUC - Artigos em Revistas Nacionais
FCTUC Ciências da Terra - Artigos em Revistas Nacionais

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