Abstract
U–Pb geochronology of zircons provides essential data for determining the precise ages and temporal relationships of late Palaeozoic volcanic activity and contributes to improving knowledge of the stratigraphy of the Southern Pyrenees (ca. 304 Ma to ca. 282 Ma, upper Carboniferous–lower Permian). The reported ages for the Erill-Castell, Estac, Cadí, and Castellar de n’Hug basins fit reasonably well with the time interval of magmatism related to an early north-dipping subduction of the Western Palaeo-Tethys Ocean, the subsequent development of the Iberian orocline (Variscan cycle), and the large-scale bending and blocking of Palaeo-Tethys Ocean lithosphere subduction east of Iberia (Cimmerian cycle) during the complex evolution of Pangaea.
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Acknowledgments
This paper is a contribution to research projects: PLUVOLC-CGL2010/22022 (Spain), GONDWANA-PTDC/CTE-GIX/110426/2009 and GOLD- PTDC/GEO–GEO/2446/2012 funded by Fundação para a Ciência e Tecnologia (Portugal) and IGCP project 574: Bending and Bent Orogens, and Continental Ribbons and IGCP 597- Amalgamation and Breakup of Pangaea: the type example of the supercontinent cycle (UNESCO-IUGS). It is a contribution to project PEst-OE/CTE/UI4073/2014.
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Pereira, M.F., Castro, A., Fernández, C., Chichorro, M., Martí, J. (2014). Regional Implications of New U–Pb Zircon Ages from Rhyolitic Ignimbritic Deposits and Andesitic Flows of Permian–Carboniferous Basins in the Southern Pyrenees. In: Rocha, R., Pais, J., Kullberg, J., Finney, S. (eds) STRATI 2013. Springer Geology. Springer, Cham. https://doi.org/10.1007/978-3-319-04364-7_239
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