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First archaeointensity reference paleosecular variation curve for South America and its implications for geomagnetism and archaeology

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  • Additional Information
    • Publication Information:
      Cambridge University Press
    • Publication Date:
      2021
    • Collection:
      Universidad Nacional de Córdoba: PAD (Repositorio Digital del Programa de Arqueología Digital)
    • Abstract:
      We report comprehensive rock-magnetic and archaeointensity investigations from 21 well-constrained pottery fragments from the Catamarca province of northwest Argentina. The absolute ages of the studied sites are ascertained by several high-quality radiometric ages and range between 1940 to 114014C yr BP. Magnetic mineralogy experiments indicates that the remanence is carried by thermally stable Ti-poor titanomagnetites. Forty-seven samples belonging to 11 out of 98 studied potsherds yielded reliable absolute intensity determinations judging from the quality parameters associated with the Thellier double-heating experiments. Moreover, we analyzed the available absolute geomagnetic intensities associated with the radiometric ages to construct the first intensity paleosecular variation curve (PSVC) for South America using thermoremanent magnetization carried by burned archaeological artifacts obtained in the present investigation and 79 other selected archaeointensities (out of 213 published in the literature). The dataset is used to build the PSVC reference curve by combined bootstrap and temporal P-spline methods. The variation curve shows significant differences with the global prediction model SHA.DIF.14k mainly based on the GEOMAGIA database. This intensity PSVC curve shows reasonably good agreement with paleosecular variation curves for Europe between 850 through 1150 BC and for Asia between 1000 and 1500 BC. This regional curve may be used as most reliable archaeomagnetic dating tool for the major part of South America (Peru, Brazil, Argentina, Chile, and Bolivia) for the last two millennia. ; Fil: Goguitchaichvili, Avto. Universidad Nacional Autónoma de México. Instituto de Geofísica; México ; Fil: Greco Mainero, Mariano Catriel. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: García Ruíz, Rafael. Universidad Nacional Autónoma de México. Instituto de Geofísica; México ; Fil: Pereyra Domingorena, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto de las Culturas. Universidad de Buenos Aires. Instituto de las Culturas; Argentina ; Fil: Cejudo, Ruben. Universidad Nacional Autónoma de México. Instituto de Geofísica; México ; Fil: Morales, Juan. Laboratorio Interinstitucional de Magnetismo Natural; México ; Fil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina ; Fil: Scattolin, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto de las Culturas. Universidad de Buenos Aires. Instituto de las Culturas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina ; Fil: Tarrago, Myriam Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto de las Culturas. Universidad de Buenos Aires. Instituto de las Culturas; Argentina
    • File Description:
      application/pdf
    • ISSN:
      0033-5894
      1096-0287
    • Relation:
      info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/quaternary-research/article/first-archaeointensity-reference-paleosecular-variation-curve-for-south-america-and-its-implications-for-geomagnetism-and-archaeology/BEE0FA146DA0DD0479720E3141811B3C; Goguitchaichvili, Avto; Greco Mainero, Mariano Catriel; García Ruíz, Rafael; Pereyra Domingorena, Lucas; Cejudo, Ruben; et al.; First archaeointensity reference paleosecular variation curve for South America and its implications for geomagnetism and archaeology; Cambridge University Press; Quaternary Research; 92; 1; 1-3-2019; 81-97; http://hdl.handle.net/11336/103698; CONICET Digital; CONICET; http://suquia.ffyh.unc.edu.ar/handle/11336/103698
    • Online Access:
      https://doi.org/10.1017/qua.2018.119
      http://suquia.ffyh.unc.edu.ar/handle/11336/103698
      http://hdl.handle.net/11336/103698
    • Rights:
      info:eu-repo/semantics/restrictedAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
    • Accession Number:
      edsbas.1C5EACF3