The Materiality of Indigenous History in the Middle Guapore River: A Study of the Ceramics from the Joao Durao Archaeological Site
João Durão Site; Guaporé River; Arawak Peoples; Archaeological Ceramics; Cultural Exchange
This dissertation investigates pre-colonial Indigenous occupations in the Guapore River region (Rondonia, Brazil), focusing on the analysis of ceramics from the Joao Durao archaeological site, located between Seringueiras and Sao Francisco do Guapore. The research aims to correlate the ceramic remains with the Jasiaquiri, Bacabal, and Corumbiara/Pimenteira phases, while also discussing their potential association with Arawak-speaking peoples, based on zoomorphic appliques (bird and bat heads) as iconographic markers. The Guapore region has a long history of human occupation, with records dating back 14,700 years BP, featuring diverse archaeological sites such as geoglyphs, mounds, and earthworks. The ceramics analyzed at Joao Durao revealed two distinct components: an older one with traits similar to Jasiaquiri pottery (incised decorations and simple forms) and a more recent one with technological and decorative features akin to the Corumbiara/Pimenteira and Bacabal phases. Methodologically, the study employed techno-morphological analysis of ceramic artifacts, examining aspects such as form, decoration, and function, alongside relative dating through comparisons with materials from other regional sites. The findings suggest that Joao Durao may represent either distinct occupations or a cultural transition linked to a multiethnic system, similar to patterns observed in Llanos de Mojos (Bolivia). Despite similarities with Jasiaquiri ceramics, the Joao Durao materials predate their Bolivian counterparts, raising questions about cultural flows and interactions between Arawak and Tupi groups in the region. Ultimately, this study contributes to the archaeological historiography of the Guapore, emphasizing the role of material culture in reconstructing the social, technological, and identity-related dynamics of Indigenous peoples within a longue duree framework.