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Title: Review of the Ediacaran-Lower Ordovician (pre-Sardic) stratigraphic framework of the Eastern Pyrenees, southwestern Europe
Author: Padel, Maxime
Clausen, Sébastien
Álvaro, José Javier
Casas Tuset, Josep Maria
Keywords: Cambrià (Període)
Issue Date: Dec-2018
Publisher: (UB). (ICTJA). (IDEA). (UAB). (CSIC)
Abstract: 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.
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It is part of: Geologica Acta, 2018, vol. 16, num. 4, p. 339-355
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ISSN: 1695-6133
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

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