2026-10-03T02:57:36Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/121772026-09-30T00:05:43Zcom_10259.4_2539com_10259_5086com_10259_2604com_10259.4_2560col_10259.4_2540col_10259.4_2561

Exploring the paleosecular variation in Iberia before 1000 BCE: new archaeomagnetic directions from fumiers’ sequences Herrejón Lagunilla, Ángela Carrancho Alonso, Ángel Villalaín Santamaria, Juan José Pavón Carrasco, Francisco Javier Lanos, Philippe Dufresne, Philippe Fernández Eraso, Javier Vega Maeso, Cristina Carmona Ballestero, Eduardo Secular variation Archaeomagnetic dating Archaeomagnetism Fumier Iberian Peninsula Holocene Earth's magnetic field Magnetismo terrestre Geocronología Geomagnetism Geological time The recurrent updating of archaeo- and paleomagnetic databases has allowed the extension of knowledge about paleosecular variation (PSV) in Iberia. However, there is a low number of directional data for the region before ∼1000 BCE. Thus, PSV reconstructions for this period could be biased by data from other regions for older periods. In this work, we present the study of several combustion episodes from three different fumier sequences from Northern Iberia: Abrigo de La Castañera (Cantabria), El Estillín (Burgos), and San Cristóbal (Alava). As a result, 15 new archaeomagnetic directions have been obtained. Most of them contribute to fill the total absence of data in the region ca. 2500-4000 BCE. Two tentative PSV Curves (PSVCs) between ca. 6000 yrs BCE and 1000 yrs BCE are presented, using different modelling techniques. A quality filtering of the mean directions (α95 ≤ 10°) was carried out to perform the PSVCs. The PSVCs show some differences respect the available reconstructions. These advances in knowledge of PSV are key to improve the archaeomagnetic dating. AHL thanks a postdoctoral contract linked to the project BU037P23 (Junta de Castilla y León & the European Regional Development Fund), a Margarita Salas Postdoctoral Program (Spanish Ministry of Universities & European Union-NextGenerationEU); a predoctoral contract of Junta de Castilla y León & European Social Fund (Predoctoral Contracts Program, ORDEN EDU/310/2015, de 10 de abril); and a Mobility Grant for Doctoral Students at the University of Burgos (2018). The work was also supported by the projects PID2019-105796 GB-I00 [Agencia Estatal de Investigación, Spain], PID2019-108753 GB-C21 [Agencia Estatal de Investigación, Spain], PID2020-113316 GB-I00 [Agencia Estatal de Investigación, Spain], PID2023-148666NB-I00 (CLIP) [MICIU], PID2024-159094NB-I00 (PYROMAG) [MICIU/AEI/10.13039/501100011033/; ERDF, EU], BU235P18 and BU037P23 [Junta de Castilla y León & European Fund of Regional Development]. 2026-09-29T08:12:29Z 2026-09-29T08:12:29Z 2026-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1871-1014 https://hdl.handle.net/10259/12177 10.1016/j.quageo.2026.101769 eng Quaternary Geochronology. 2026, V. 96, art. 101769 https://doi.org/10.1016/j.quageo.2026.101769 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf Elsevier https://riubu.ubu.es/bitstream/10259/12177/4/Herrejon-qg_2026.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by/4.0/ RIUBU. Repositorio Institucional de la Universidad de Burgos https://hdl.handle.net/10259/12177