Evidencias petrológicas y geoquímicas de hidrotermalismo sinsedimentario cretácico en un margen continental hiperextendido (Depresión Intermedia, Cuenca Vasco Cantábrica oriental)
- E. Iriarte 1
- M.A. López-Horgue 2
- A. Aranburu 2
- A. Ceriani 3
- A. Bodego 2
- M. Ladron de Guevara 2
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1
Universidad de Burgos
info
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2
Universidad del País Vasco/Euskal Herriko Unibertsitatea
info
Universidad del País Vasco/Euskal Herriko Unibertsitatea
Lejona, España
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3
Khalifa University
info
ISSN: 1576-5172
Any de publicació: 2021
Títol de l'exemplar: X Congreso Geológico de España
Número: 18
Pàgines: 159
Tipus: Article
Altres publicacions en: Geotemas (Madrid)
Resum
The stratigraphic, sedimentological and tectosedimentary characterization of the Cretaceous sediments (Aptian to Conia- cian) of the Central Depression (Lamare, 1936), lead to the identification of a shallow carbonate platform deposits, followed by a mixed siliciclastic platform to basinal carbonate sediments deposited transgresivelly on the southern margin of the Bort- ziri-Cinco Villas Palaeozoic massif (Bodego et al., 2015). The evolution of those depositional systems was controlled by 5 extensional tectosedimentary phases. Petrological and geochemical studies of the Albian and Late Turonian sediments show diagenetic alteration features due to hydrothermal fluid-flow. This hydrothermalism features could be correlated to the onset of a hyperextended continental margin to the south of the Bortziri-Cinco Villas Palaeozoic massif (DeFelipe et al., 2018).