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Título : New archaeointensity data from Italy and geomagnetic field intensity variation in the Italian Peninsula
Autor : Tema, Evdokia .
Morales Contreras, Juan J.
Goguitchaishvili, Avto
Camps, Pierre .
Publicado en: Geophysical Journal International, 2013, n 193, p. 603–614
Editorial : Oxford University Press
Royal Astronomical Society
Fecha de publicación : may-2013
ISSN : 0956-540X
DOI: http://dx.doi.org/10.1093/gji/ggs120
Resumen : We present new archaeointensity results from three Italian kilns situated at Ascoli Satriano, Vagnari and Fontanetto Po obtained with the Thellier modified by Coe double heating method. These data complement the directional results previously published. All sites are dated on the basis of archaeological information and/or thermoluminescence dating. The results are corrected for the anisotropy of the thermoremanent magnetization and the cooling rate effects. The new data are compared with previously published archaeointensity data from Italy and nearby countries within 900 km radius from Viterbo. An initial data set including archaeointesity data mainly coming from Italy, France, Switzerland, Czech Republic, Slovakia, Hungary, Greece and Bulgaria has been compiled. After the application of strict selection criteria, the most reliable data have been used for the calculation of a preliminary Italian intensity secular variation (SV) curve for the last 3000 yr. The new curve covers the 300 BC–400 AD and 1200–1900 AD periods. It is established by means of sliding windows of 200 yr shifted by 100 yr. The lack of reliable data for the 1000–200 BC and 400–1200 AD time intervals does not permit the calculation of a continuous curve. Clearly, more high-quality archaeointensity data from Italy and Europe are still needed to draw a robust intensity SV curve for the Italian Peninsula that could be used for archaeomagnetic dating in combination with the directional data.
Palabras clave: Archaeomagnetism
Palaeomagnetic secular variation
Materia: Magnetismo
Derechos: © 2013 Los autores
URI : http://hdl.handle.net/10259.4/2563
Versión del editor: http://gji.oxfordjournals.org/content/193/2.toc
Aparece en las colecciones: Artículos PALEOMAG-UBU

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