2026-04-19T16:41:00Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/106712025-07-05T00:05:45Zcom_10259_7877com_10259_5086com_10259_2604com_10259.4_2560col_10259_8289col_10259.4_2561

Using archaeomagnetism to unravel the occupational history of a medieval site: Cañada Real (Burgos, Northern Spain) Vernet Tarrago, Eva Carrancho Alonso, Ángel Calvo Rathert, Manuel Yamamoto, Yuhji Jorge Villar, Susana E. Bógalo Román, Mª Felicidad Palomino, Ángel Archaeomagnetism Archaeomagnetic dating Archaeointensity Medieval period Thermoremanence 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. 2025-07-04T10:54:47Z 2025-07-04T10:54:47Z 2025-07-04T10:54:47Z 2025-10 info:eu-repo/semantics/article 2352-409X https://hdl.handle.net/10259/10671 10.1016/j.jasrep.2025.105278 eng Journal of Archaeological Science: Reports. 2025, V. 66, 105278 https://doi.org/10.1016/j.jasrep.2025.105278 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105796 GB-I00/ES/LAS VARIACIONES DEL REGISTRO ARQUEOMAGNETICO PREHISTORICO EN LA PENINSULA IBERICA Y EL CAUCASO/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU037P23//Estudio Paleomagnético de materiales arqueológicos quemados y espeleotemas del holoceno y pleistoceno superior/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PRE2020-094803/ES/ http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess Atribución-NoComercial 4.0 Internacional Elsevier