A Reevaluation of the Absolute Chronology of Cabuza and Related Ceramic Styles of the Azapa Valley, Northern Chile
The nature and extent of the political and cultural influence of the Tiwanaku state (ca. A.D. 500—1100) in the Azapa Valley of northern Chile are debated topics. The absolute chronology of these contacts also remains somewhat unclear. Much of the debate has centered on the origins and chronological position of the Tiwanaku-related black-on-red ceramic style called Cabuza. In order to reevaluate the chronological position of the Cabuza, Maytas-Chiribaya, and San Miguel ceramic styles and associated cultural phases of the Azapa Valley, we obtained a total of 16 new radiocarbon dates for the Azapa-6, Azapa- 71a, Azapa-141, and Azapa-143 cemeteries. All but one sample dated to the Late Intermediate period (ca.A.D. 1000-1450). We compare our results with previously published radiocarbon and thermoluminescence dates and carry out Bayesian probability calculations, establishing the most likely chronological ranges for the three ceramic styles. Based on this research, we argue that the undeniable Tiwanaku influence seen in the Azapa Valley more likely reflects processes set in motion by the collapse of the Tiwanaku state rather than an attempt to colonize or indirectly control the Azapa Valley during the Middle Horizon (ca. A.D. 550-1000).