Post-Variscan basin evolution in the central Pyrenees: Insights from the Stephanian–Permian Anayet Basin

The Anayet Basin, in the central Pyrenees, records a Stephanian–Permian continental succession including three Permian volcanic episodes. The absolute chronology of these rocks has allowed us to better constrain the early post-Variscan evolution of the Pyrenees. The transtensional regime responsible...

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Published inComptes rendus. Geoscience Vol. 348; no. 3-4; pp. 333 - 341
Main Authors Rodríguez-Méndez, Lidia, Cuevas, Julia, Tubía, José María
Format Journal Article
LanguageEnglish
Published Elsevier SAS 01.03.2016
Subjects
Axial zone
Central Pyrenees
Permian
Pull-apart basin
Transtension
Pull-apart basin
Permian
Central Pyrenees
Axial zone
Transtension
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Summary:The Anayet Basin, in the central Pyrenees, records a Stephanian–Permian continental succession including three Permian volcanic episodes. The absolute chronology of these rocks has allowed us to better constrain the early post-Variscan evolution of the Pyrenees. The transtensional regime responsible for the formation of the pull-apart Anayet Basin began at least in Stephanian times, the age of the first post-Variscan deposits in the area, and lasted until Late Permian. During Middle Eocene times, the Alpine Orogeny inverted the Anayet Basin and led to the formation of south-vergent chevron folds and axial plane penetrative cleavage.
ISSN:1631-0713
1778-7025
1778-7025
DOI:10.1016/j.crte.2015.11.006