Intermittent occupation of the sambaqui builder settlements in Rio de Janeiro State, Brazil
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 223-24,(2004) 695-699;
We study the time of settlement, period of occupation and the sociocultural system of the fishing-collecting groups, builders of huge shell and sand mounds found in the Brazilian coast. We present original results of four C-14 - AMS dates from the IBV4 archaeological site, one of the four sites of the Boa Vista group, located in Rio de Janeiro State, Brazil, and we analyze the occupation of the whole group. The results reaffirm the long occupation of populations in this region (similar to2400 yr). In this paper we complement the model proposed to this region, suggesting a discontinuous occupation of these sites, during two distinct periods: similar to4000-3300 yr BP and similar to2000-1500 yr BP. Moreover, it was possible to show that these sites were not active concomitantly, and that the occupation took place in an intermittent way. We show a strong correlation between the periods of occupation and of increasing sea level. (C) 2004 Elsevier B.V. All rights reserved.
archaeology;; radiocarbon dating;; sambaqui;; mass spectrometry
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