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<publisher>HAL CCSD</publisher>
<title lang=en>Timing of Eocene–Miocene thrust activity in the Western Axial Zone and Chaînons Béarnais (west-central Pyrenees) revealed by multi-method thermochronology</title>
<creator>De Vicente i Bosch, Gemma</creator>
<creator>Teixell, Antonio</creator>
<creator>Jolivet, Marc</creator>
<creator>Labaume, Pierre</creator>
<creator>Stockli, Daniel</creator>
<creator>Domenech, Mireia</creator>
<creator>Monie, Patrick</creator>
<contributor>Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)</contributor>
<contributor>Géosciences Rennes (GR) ; Université de Rennes 1 (UR1) - Institut national des sciences de l'Univers (INSU - CNRS) - Observatoire des Sciences de l'Univers de Rennes (OSUR) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Department of Geology ; Universitat Autònoma de Barcelona [Barcelona] (UAB)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Jackson School of Geosciences ; University of Texas at Austin [Austin]</contributor>
<description>International audience</description>
<source>ISSN: 1631-0713</source>
<source>Comptes Rendus Géoscience</source>
<publisher>Elsevier Masson</publisher>
<identifier>insu-01301995</identifier>
<identifier>https://hal-insu.archives-ouvertes.fr/insu-01301995</identifier>
<source>https://hal-insu.archives-ouvertes.fr/insu-01301995</source>
<source>Comptes Rendus Géoscience, Elsevier Masson, 2016, From rifting to mountain building: the Pyrenean Belt, 348 (3-4), pp.246-256. 〈10.1016/j.crte.2016.01.001〉</source>
<identifier>DOI : 10.1016/j.crte.2016.01.001</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.crte.2016.01.001</relation>
<language>en</language>
<subject lang=en>Pyrenees</subject>
<subject lang=en>Thrusting</subject>
<subject lang=en>Thermochronology</subject>
<subject lang=en>Apatite fission tracks</subject>
<subject lang=en>Apatite and zircon (U–Th)/He</subject>
<subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject>
<subject>[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We present new apatite (U–Th)/He (AHe), apatite fission track (AFT) and zircon (U–Th)/He (ZHe) data to unravel the timing of exhumation and thrusting in the western Axial Zone of the Pyrenees and the adjacent North Pyrenean Zone (Chaînons Béarnais). In the north, ZHe data yield cooling signals between 26 and 50 Ma in the Chaînons Béarnais, which are consistent with the onset of thrust-related cooling in the neighboring Mauléon Basin modeled by previous authors. Non-reset Triassic ages are found in the footwall of the North Pyrenean Frontal thrust (Aquitaine Basin). To the south, similar ZHe ages in both the hanging wall and footwall of the Lakora thrust record Late Eocene to Oligocene cooling that we attribute to the activity of the Gavarnie thrust. Thermal modeling of samples from the Lakora thrust hanging wall indicates cooling from Early Eocene times, recording activity of the Lakora thrust. Paleozoic detrital samples from the westernmost Axial Zone and from the Eaux-Chaudes and Balaitous–Panticosa granitic plutons yield AFT signals between 20 and 30 Ma and ZHe between 20 and 25 Ma. Modelling indicates fast cooling during this time, which we attribute to the motion of the Guarga thrust. AHe data from these Axial Zone plutons, combined with modelling, show a post-tectonic signal (8–9 Ma), which indicates renewed erosion after a period without major cooling and exhumation between 20 to 10 Ma.</description>
<date>2016</date>
</dc>
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