Exploring the paleosecular variation in Iberia before 1000 BCE: new archaeomagnetic directions from fumiers’ sequences
Abstract
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 (α 95 ≤ 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.
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BibTeX
@article{lagunilla2026exploring,
title = {{Exploring the paleosecular variation in Iberia before 1000 BCE: new archaeomagnetic directions from fumiers’ sequences}},
author = {Ángela Herrejón Lagunilla and Ángel Carrancho Alonso and Juan José Villalaín Santamaría and Francisco Javier Pavón Carrasco and Philippe Lanos and Philippe Dufresne and Javier Fernández Eraso and Cristina Vega and Eduardo Carmona},
journal = {Quaternary Geochronology},
year = {2026},
month = sep,
doi = {10.1016/j.quageo.2026.101769},
url = {https://insu.hal.science/insu-05766712v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Exploring the paleosecular variation in Iberia before 1000 BCE: new archaeomagnetic directions from fumiers’ sequences
AU - Ángela Herrejón Lagunilla
AU - Ángel Carrancho Alonso
AU - Juan José Villalaín Santamaría
AU - Francisco Javier Pavón Carrasco
AU - Philippe Lanos
AU - Philippe Dufresne
AU - Javier Fernández Eraso
AU - Cristina Vega
AU - Eduardo Carmona
PY - 2026
DA - 2026/09/28
JO - Quaternary Geochronology
DO - 10.1016/j.quageo.2026.101769
UR - https://insu.hal.science/insu-05766712v1
AB - 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 (α 95 ≤ 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.
SN - 1871-1014
ER -