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Título: | Review of the Ediacaran-Lower Ordovician (pre-Sardic) stratigraphic framework of the Eastern Pyrenees, southwestern Europe |
Autor: | Padel, Maxime; Clausen, Sébastien; Álvaro-Blasco, José Javier CSIC ORCID; Casas, Josep Maria | Palabras clave: | Lithostratigraphy Chronostratigraphy Palaeogeography Cambrian NW Gondwana |
Fecha de publicación: | dic-2018 | Editor: | Universidad de Barcelona | Citación: | Geologica Acta 16(4): 339-355 (2018) | Resumen: | The Ediacaran-Lower Ordovician successions exposed in the Eastern Pyrenees are updated and revised based on recent U-Pb zircon radiometric ages, intertonguing relationships of carbonate-dominated strata, and onlapping patterns marking the top of volcano-sedimentary complexes. A stratigraphic comparison with neighbouring pre-Variscan outcrops from the Montagne Noire (southern French Massif Central) and Sardinia is related to i) the absence of Cadomian deformation close to the Ediacaran-Cambrian boundary interval; ii) the presence of an episodic, Cadomian-related, acidic-dominant volcanism related to carbonate production punctuating the Ediacaran-Cambrian transition, similar to that recorded in the northern Montagne Noire; and iii) the lack of Guzhangian (Cambrian Epoch 3) regressive shoal complexes present in the Montagne Noire and probably in Sardinia. | Versión del editor: | https://doi.org/10.1344/GeologicaActa2018.16.4.1 | URI: | http://hdl.handle.net/10261/186458 | DOI: | 10.1344/GeologicaActa2018.16.4.1 | ISSN: | 1695-6133 | E-ISSN: | 1696-5728 |
Aparece en las colecciones: | (IGEO) Artículos |
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Review of the Ediacaran-Lower Ordovician_Padel.pdf | 2,83 MB | Adobe PDF | Visualizar/Abrir |
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