Palaeozoic Basement of the Pyrenees

Josep Maria Casas (1) , J. J Álvaro , S. Clausen (2) , Maxime Padel (3) , C. Puddu , J. Sanz-López , T. Sánchez-García (4) , M. Navidad , P. Castiñeiras , M. Liesa (5)

1 UB - Universitat de Barcelona
2 CR2P - Centre de recherche sur la Paléobiodiversité et les Paléoenvironnements
3 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
4 IGME - Instituto Geológico y Minero de España
5 Departament de Geoquimica, Petrologia i Prospeccio´ Geologica

In the Pyrenees, the Cambrian-Lower Ordovician strata represent a quiescent time span with no remarkable tectonic activity, followed by a late Early-Mid Ordovician episode of uplift and erosion that led to the formation of the Sardic unconformity. Silurian sedimentation was widespread and transgressive followed by a Devonian succession characterized by a complex mosaic of sedi-mentary facies. Carboniferous pre-Variscan sediments (Tournaisian-Viséan cherts and limestones) precede the arrival of the synorogenic siliciclastic supplies of the Culm flysch at the Late Serpukhovian. All this succession was subsequently affected by the Serpukhovian-Bashkirian (Variscan) collision, as a result of which, the Palaeozoic rocks were incorporated into the northeastern branch of the Ibero-Armorican Arc.

Domains: Stratigraphy; Earth Sciences

Josep Maria Casas, J. J Álvaro, S. Clausen, Maxime Padel, C. Puddu, et al.. Palaeozoic Basement of the Pyrenees. Palaeozoic Basement of the Pyrenees, Springer, Cham, pp 229-259, 2019, Part of the Regional Geology Reviews book series (RGR), Print ISBN 978-3-030-10518-1 / Online ISBN 978-3-030-10519-8. ⟨10.1007/978-3-030-10519-8_8⟩. ⟨hal-02309572⟩