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

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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Journal
Geogaceta
Published
2025-06-20
DOI
https://doi.org/10.55407/geogaceta108766
Primary Topic
Geological and Geophysical Studies Worldwide
Type
article
Field-Weighted Citation Impact
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article

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

Robert Scholger, Aránzazu Luzón, Eva Bellido, Juan C. Larrasoaña et al.
Geogaceta
Geological and Geophysical Studies Worldwide
article

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

Robert Scholger, Aránzazu Luzón, Eva Bellido, Juan C. Larrasoaña, Elisabet Beamud, P. Campos, Gilen Bernaola, Emilio L. Pueyo, Pablo Calvín, Manuel de Jesús Flores Montes, Ma Pilar Mata
article en

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.

GeogacetaVol. 77
University of the Basque Country (ES), Montanuniversität Leoben (AT), Universidad de Zaragoza (ES), Research Center on Earth Sciences (AR), Institut Botànic de Barcelona (ES), Instituto Geográfico Nacional (ES)
Ministerio de Ciencia e Innovación, European Regional Development Fund
Openalex Percentile: Top 70%
Geological and Geophysical Studies Worldwide
DOIOpen Access PDFOpenAlex
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Bartonian-Priabonian rotational evolution of the central Jaca-Pamplona Basin, Southern Pyrenees — Robert Scholger, Aránzazu Luzón, et al. · Geogaceta (2025) | TGRS Research Map | TGRS