Evidence of a Cenomanian shallow-marine carbonate platform in the northwestern margin of the Bortziriak-Cinco Villas massif, eastern Basque-Cantabrian Basin
Basin margin evolution of rift basins is not always well constrained. In the northeastern margin of the Basque-Cantabrian Basin, a revision of a carbonate succession permits deciphering the transition from synto post-rift phases in the poorly studied northwestern margin of the Bortziriak-Cinco Villa...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Ajuntament de Barcelona |
| Repositorio: | BCNROC. Repositori Obert de Coneixement de l'Ajuntament de Barcelona |
| OAI Identifier: | oai:bcnroc.ajuntament.barcelona.cat:11703/134672 |
| Acceso en línea: | http://hdl.handle.net/2072/537184 https://doi.org/10.55407/geogaceta98191 http://hdl.handle.net/11703/134672 |
| Access Level: | acceso abierto |
| Palabra clave: | País Basc Cantàbria Rifts Paleozoic Sedimentació Ciència i tecnologia articles |
| Sumario: | Basin margin evolution of rift basins is not always well constrained. In the northeastern margin of the Basque-Cantabrian Basin, a revision of a carbonate succession permits deciphering the transition from synto post-rift phases in the poorly studied northwestern margin of the Bortziriak-Cinco Villas massif. The sedimentological analysis shows three main lithofacies, attributed to a shallow-marine, non-rimmed carbonate platform. On the other hand, biostratigraphic analysis based on the presence of Caprina adversa rudist indicates a Cenomanian age for the succession. Thus, this study illustrates the existence of a Cenomanian shallow-marine carbonate platform unconformably overlying the Palaeozoic massif. This platform development was the result of a generalized transgression during the early post-rift stage. |
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