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Refining the Chronology and Occupation Dynamics of the Mound Villages of South-Eastern Acre, Brazil

Jose Iriarte, Jonas Gregorio de Souza, Mark Edward Robinson, Antonia Damasceno Barbosa, Franciele da Silva

Resumo

This paper summarises recent test excavations at five Mound Village sites in the south-eastern sector of Acre state, Brazil, including Caboquinho, Boa Esperança, Tocantins, Dos Circulos IV and V. Radiocarbon dates obtained from the excavation of this site refine the chronology of this archaeological tradition. To improve the chronologies of the mound villages in Acre for which radiocarbon dates were available, we modelled them using Bayesian statistics. We conducted the analysis in ChronoModel, which is better suited for regional models. Bayesian modelling of new radiocarbon dates from basal contexts of nine sites in the region establish the beginning of this archaeological tradition at ~ AD 952-1216.  Nine dates from ten construction phases at the Caboquinho site establish the longest sequence from ~ AD 1169-1309 to colonial times. The stratigraphy of the test units reported in this study confirms previous results indicating that mounds are the result of alternating construction and occupation episodes. Dates from the Dos Circulos IV Rectangular Mound Village ~ AD 1367-1451 indicates that Rectangular Villages are broadly contemporaneous with Circular Mound Villages. Single dates from three superimposed villages at Dos Circulos V suggest the succession of village construction. Overall, these preliminary results make a contribution to a better understanding of the timing of emergence and demise of Mound Village construction.


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DOI: http://dx.doi.org/10.18542/amazonica.v13i1.9005



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