Archaeomagnetic dating and magnetic characterization of ceramics from the Paquimé, Casas Grandes region, Chihuahua, Mexico

Casas Grandes is a prehistoric culture area located between Chihuahua, northern Mexico, and New southwest of United States America. It had an intense occupation with large buildings during the ceramic period, from 0 to 1450 CE, developing very particular painted potteries. In this study, magnetic properties archaeointensity experiments were investigated on two special types called Mimbres polychrome Ramos. They come four archaeological sites region in Chihuahua: Paquimé, Villa Ahumada, Galeana, Samalayuca. Archaeological timing typology assign Ramos age period 900 but no absolute ages are available. Magnetic show that have different magnetomineralogical properties, suggesting pottery making materials different. Mean results obtained nine sherds, five polychrome, for total 35 specimens. Intensity value range 49 59 µT type 41 type. Archaeomagnetic dating was performed using SHAWQ2k global model Maghoub regional paleosecular variation curve. give 960–1100 CE type, 1300–1600 samples, confirming both manufactured at times. These highlight potential archaeomagnetism precise chronological framework culture.