Bartonian-Priabonian rotational evolution of the central Jaca-Pamplona Basin, Southern Pyrenees

Authors

  • Pablo Sierra Campos CN IGME, CSIC, Unidad de Zaragoza - Unidad Asociada en Ciencias de la Tierra IGME (CSIC), Dpto. Ciencias de la Tierra Universidad de Zaragoza
  • Emilio L. Pueyo CN IGME, CSIC, Unidad de Zaragoza - Unidad Asociada en Ciencias de la Tierra IGME (CSIC), Dpto. Ciencias de la Tierra Universidad de Zaragoza
  • Pablo Calvín CN IGME, CSIC, Unidad de Zaragoza - Unidad Asociada en Ciencias de la Tierra IGME (CSIC), Dpto. Ciencias de la Tierra Universidad de Zaragoza
  • Manuel Montes CN IGME, CSIC, Madrid
  • Aránzazu Luzón Unidad Asociada en Ciencias de la Tierra IGME (CSIC), Dpto. Ciencias de la Tierra Universidad de Zaragoza
  • Gilen Bernaola Dept. Ingeniería Minera y Metalúrgica y Ciencia de los Materiales, Univ. del País Vasco
  • Mª Pilar Mata CN IGME, CSIC, Madrid
  • Eva Bellido CN IGME, CSIC, Madrid
  • Elisabet Beamud Paleomagnetic Laboratory CCiTUB-GEO3BCN CSIC, Barcelona
  • Robert Scholger Palaeomagnetiklabor Gams, Chair of Applied Geophysics, Montanuniversität Leoben, Austria
  • Juan C. Larrasoaña CN IGME, CSIC, Unidad de Zaragoza - Unidad Asociada en Ciencias de la Tierra IGME (CSIC), Dpto. Ciencias de la Tierra Universidad de Zaragoza - Dept. Ciencias, Universidad Pública de Navarra, Pamplona

DOI:

https://doi.org/10.55407/geogaceta108766

Keywords:

vertical axis rotations, Pyrenees

Abstract

Orogenic zones often exhibit vertical axis rotations (VAR) due to the accommodation of shortening differences along the main structural. In this work, we focus on the central Jaca-Pamplona Basin, where a Bartonian-Priabonian sequence crops out. There two magnetostratigraphic sections, Izaga and Berdún (2800 m), record about 5 Myr of the tectonic and sedimentary evolution of the basin. They have been discretized every 150 m to evaluate the rotational kinematics (spatio-temporal variations of the VAR). In the Izaga section the rotation is non-significant and noisier (dec=003º; inc=39º; a95=18°; k=23) than in the Berdún section, eastern sector, where the clockwise VAR is slightly larger (dec=008º; inc=46º; a95=10°; k=29) although it still overlaps the reference direction. Additional work is needed to refine this paleomagnetic record.

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Published

2025-06-20

How to Cite

Sierra Campos, P., Pueyo, E. L., Calvín, P., Montes, M., Luzón, A., Bernaola, G., … Larrasoaña, J. C. (2025). Bartonian-Priabonian rotational evolution of the central Jaca-Pamplona Basin, Southern Pyrenees. GEOGACETA, 77, 27–30. https://doi.org/10.55407/geogaceta108766

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Vol. 77 (2025): January-June

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Artículos

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Copyright (c) 2025 Pablo Sierra Campos, Emilio L. Pueyo, Pablo Calvín, Manuel Montes, Aránzazu Luzón, Gilen Bernaola, Mª Pilar Mata, Eva Bellido, Elisabet Beamud, Robert Scholger, Juan C. Larrasoaña

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