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

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• 作者：Lidia Rodrí ; guez-Mé ; ndez^a ; ^b ; ^{lidia.rodriguez@ehu.es" class="auth_mail" title="E-mail the corresponding author} ; Julia Cuevas^b ; José ; Marí ; a Tubí ; a^b
• 关键词：Central Pyrenees ; Axial zone ; Permian ; Transtension ; Pull-apart basin
• 刊名：Comptes Rendus Geoscience
• 出版年：2016
• 出版时间：March-April 2016
• 年：2016
• 卷：348
• 期：3-4
• 页码：333-341
• 全文大小：6240 K

文摘

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.