RT info:eu-repo/semantics/article
T1 Using archaeomagnetism to unravel the occupational history of a medieval site: Cañada Real (Burgos, Northern Spain)
A1 Vernet Tarrago, Eva
A1 Carrancho Alonso, Ángel
A1 Calvo Rathert, Manuel
A1 Yamamoto, Yuhji
A1 Jorge Villar, Susana E.
A1 Bógalo Román, Mª Felicidad
A1 Palomino, Ángel
K1 Archaeomagnetism
K1 Archaeomagnetic dating
K1 Archaeointensity
K1 Medieval period
K1 Thermoremanence
K1 Magnetismo
K1 Magnetism
K1 Arqueología
K1 Archaeology
AB Different attempts to date the archaeological site of Cañada Real (Northern Spain) with radiocarbon yielded contrasting results, ranging from the Bronze Age to medieval times. During the archaeological interventions carried out there, a well-preserved burned surface was discovered. The burned sediments of this surface offered the opportunity to conduct full-vector archaeomagnetic dating to elucidate the age of the studied site. For determination of an archaeomagnetic intensity, two different methods (Thellier-Coe and Tsunakawa-Shaw) were applied to test their suitability and compare their reproducibility. Raman spectroscopy and rock magnetism revealed that the main magnetization carrier is magnetite, with varying concentrations of hematite and goethite. A good correlation is observed between high Qn ratio values (typically > 6) and strongly magnetic as well as stable orthogonal demagnetization diagrams of the natural remanent magnetization. The full-vector was recovered with a mean direction of Declination = 17.7°, Inclination = 54.0°, α95 = 3.2°, k = 309.2 and a mean intensity of 38.1 ± 9.0 µT. Comparison to the SCHA.DIF.4 k geomagnetic field model yielded a single dating interval of 995–1125 CE at 95 % confidence level. This result accurately dates one of the phases of abandonment of the site and coincides with some historically documented Muslim razzias, demonstrating the usefulness of the archaeomagnetic technique to reconstruct the occupational history of archaeological sites with burned remains.
PB Elsevier
SN 2352-409X
YR 2025
FD 2025-10
LK https://hdl.handle.net/10259/10671
UL https://hdl.handle.net/10259/10671
LA eng
NO We would like to acknowledge Cañada Real excavation staff for their help in the sampling campaign, as well as Caleruega municipal council. This research has been supported by project PID2019105796GB-I00 of the Agencia Estatal de Investigación and project BU037P23 of the Junta de Castilla y León and the European Regional Development Fund. Eva Vernet Tarragó acknowledges funding from PRE2020-094803 (Agencia Estatal de Investigación) contract.
DS Repositorio Institucional de la Universidad de Burgos
RD 20-abr-2026