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 Berd...
| Autores: | , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/27137 |
| Acceso en línea: | https://hdl.handle.net/10272/27137 |
| Access Level: | acceso abierto |
| Palabra clave: | Vertical-Axis-Rotations Pyrenees Rotaciones de eje vertical Pirineos 2506 Geología |
| Sumario: | 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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