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- Title
MARINE RESERVOIR CORRECTIONS ON THE SOUTHEASTERN COAST OF BRAZIL: PAIRED SAMPLES FROM THE SAQUAREMA SHELLMOUND.
- Authors
Alves, Eduardo; Macario, Kita; Souza, Rosa; Aguilera, Orangel; Goulart, Ana Carolina; Scheel-Ybert, Rita; Bachelet, Caroline; Carvalho, Carla; Oliveira, Fabiana; Douka, Katerina
- Abstract
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 materialfrom this site with the aim of evaluating the marine reservoir effect (MRE) in the region. Radiocarbon ages of 45 marine and6 terrestrial samples from this shellmound provided data for assessing the MRE and the influences of freshwater and seasonalcoastal marine upwelling in this specific locality. Samples of charcoal, fish otoliths, and mollusk shells were analyzed and the14C dates were modeled in the OxCal platform to determine the marine reservoir correction. The result obtained is R = 265 ±70 14C yr and the offset △R was found to be -140 ± 66 14C yr. To support the accuracy of this value for correcting conventional14C marine ages, taxonomic analyses of the samples were performed.
- Subjects
UNITED States; RESERVOIRS; CHARCOAL analysis (Archaeology); HOLOCENE Epoch; OCEAN circulation; CARBON isotopes; VALUE engineering
- Publication
Radiocarbon, 2015, Vol 57, Issue 4, p517
- ISSN
0033-8222
- Publication type
Article
- DOI
10.2458/azu_rc.57.18404