Journal
RADIOCARBON
Volume 57, Issue 4, Pages 517-525Publisher
UNIV ARIZONA DEPT GEOSCIENCES
DOI: 10.2458/azu_rc.57.18404
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Funding
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
- CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
- FAPERJ (Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro)
- PRONEX (Programa de Apoio a Nucleos de Excelencia)
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The Saquarema archaeological site, on the Atlantic coast of the Rio de Janeiro State, is one of many shellmounds built on the Brazilian coast by hunter-gatherer populations during the Holocene. We used archaeological material from this site with the aim of evaluating the marine reservoir effect (MRE) in the region. Radiocarbon ages of 45 marine and 6 terrestrial samples from this shellmound provided data for assessing the MRE and the influences of freshwater and seasonal coastal marine upwelling in this specific locality. Samples of charcoal, fish otoliths, and mollusk shells were analyzed and the C-14 dates were modeled in the OxCal platform to determine the marine reservoir correction. The result obtained is R = 265 + 70 C-14 yr and the offset Delta R was found to be -140 +/- 66 C-14 yr. To support the accuracy of this value for correcting conventional C-14 marine ages, taxonomic analyses of the samples were performed.
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