Guachimontones of Teuchitlan: An Archaeomagnetic Survey to Improve the Chronology of Western Mexico
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Verónica López-Delgado, Ana M. Soler-Arechalde, J. Rodrigo Esparza-López,
Avto Goguitchaichvili, Cecilia I. Caballero-Miranda, Juan Morales • español
Abstract. This study contributes to the pre-Hispanic chronology of Western Mexico through archaeomagnetic dating of the archaeological site Guachimontones (Teuchitlán, Jalisco). Systematic magnetic measurements were carried out to determine the mean direction of each sample at the UNAM paleomagnetism laboratories (Mexico City and Campus Morelia). Sixteen analyzed samples (81 specimens in total) come from furnaces, burned and unburnt floors, collected between 2005 and 2010. Archaeomagnetic dates with precision parameter α95 < 10° were obtained for 88% of the samples, and corresponds to the site occupation periods. This study thus contributes new and reliable data to the reference variation curve of Mesoamerica in addition to documenting architectural modifications in the building sequence at Guachimontones and supporting the theory of reoccupation of this site during the Epiclassic period (450-900 A.D.).
Keywords: Archaeomagnetic dating, Western Mexico, Guachimontones.
López-Delgado, V., A. M. Soler-Arechalde, J. R. Esparza-López, A. Goguitchaichvili,
C. I. Caballero-Miranda, J. Morales. 2017.
Guachimontones de Teuchitlán: un estudio arqueomagnético para mejorar la cronología del Occidente de México. Arqueología Iberoamericana 33: 27-34.
Publication date: February 15, 2017.
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