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A Tentative Determination of Upwelling Influence on the Paleo-Surficial Marine Water Reservoir Effect in Southeastern Brazil

Published online by Cambridge University Press:  18 July 2016

Rodolfo J Angulo ,
Paula J Reimer ,
Maria C de Souza ,
Rita Scheel-Ybert ,
Maria C Tenório ,
Sibelle T Disaró  and
Maria D Gaspar
Rodolfo J Angulo
Affiliation:
Laboratório de Estudos Costeiros (LECOST), Universidade Federal do Paraná, Departamento de Geologia, Setor de Ciências da Terra, Curitiba, Paraná, Brazil
Paula J Reimer
Affiliation:
School of Archaeology and Palaeoecology, 14CHRONO Centre for Climate, the Environment and Chronology, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
Maria C de Souza
Affiliation:
Laboratório de Estudos Costeiros (LECOST), Universidade Federal do Paraná, Departamento de Geologia, Setor de Ciências da Terra, Curitiba, Paraná, Brazil
Rita Scheel-Ybert
Affiliation:
Departamento de Antropologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
Maria C Tenório
Affiliation:
Departamento de Antropologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
Sibelle T Disaró
Affiliation:
Laboratório de Micropaleontologia, Centro de Estudos do Mar (CEM), Setor de Ciências da Terra, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
Maria D Gaspar
Affiliation:
Departamento de Antropologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Abstract

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Previous work has suggested that seasonal and interannual upwelling of deep, cold, radiocarbon-depleted waters from the South Atlantic has caused variations in the reservoir effect (R) through time along the southern coast of Brazil. This work aims to examine the possible upwelling influence on the paleoreservoir age of Brazilian surficial coastal waters based on paired terrestrial/marine samples obtained from archaeological remains. On the Brazilian coast, there are hundreds of shell middens built up by an ancient culture that lived between 6500 to 1500 yr ago, but there are few shell middens located on open-coast sites with a known upwelling influence. Three archaeological sites located in a large headland in Arraial do Cabo and Una de Cabo Frio on the southeastern coast of Brazil, with open-ocean conditions and a well-known strong and large upwelling of the Malvinas/Falkland current, were chosen for this study. The 14C age differences between carbonized seed and marine samples varied from 281 ± 44 to 1083 ± 51 14C yr. There are also significant age differences between carbonized seed samples (977 14C yr) and marine samples (200 and 228 14C yr) from the same archaeological layer that cannot be explained by a reservoir effect or an old-wood effect for charcoal. Therefore, the present data from the southeastern Brazilian coast are inconclusive for identifying an upwelling effect on R. To do so, it would be necessary to more precisely define the present–pre-bomb R in upwelling regions, and to analyze paired marine/terrestrial samples that are contemporaneous beyond doubt.

Type
Articles
Information
Radiocarbon , Volume 49 , Issue 3 , 2007 , pp. 1255 - 1259
Copyright
Copyright © 2007 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Angulo, RJ, de Souza, MC, Reimer, PJ, Sasaoka, SK. 2005. Reservoir effect of the southern and southeastern Brazilian coast. Radiocarbon 47(3):67–73.Google Scholar
Ascough, P, Cook, G, Dugmore, A. 2005. Methodological approaches to determining the marine radiocarbon reservoir effect. Progress in Physical Geography 29(4):532–47.Google Scholar
Bigarella, JJ. 1950–1951a. Contribuição do estudo dos sambaquis no Estado do Paraná, I. Regiões adjacentes às baías de Paranaguá e Antonina. Arquivos de Biologia e Tecnologia 5–6:231–92. In Portuguese.Google Scholar
Bigarella, JJ. 1950–1951b. Contribuição do estudo dos sambaquis no Estado do Paraná, II. Regiões adjacentes à baía de Guaratuba. Arquivos de Biologia e Tecnologia 5–6:293–321. In Portuguese.Google Scholar
Carbonel, CAA, Valentin, JL. 1999. Numerical modelling of phytoplankton bloom in the upwelling ecosystem of Cabo Frio (Brazil). Ecological Modelling 116(2–3):135–48.Google Scholar
Eastoe, CJ, Fish, P, Dulce Gaspar, M, Long, A. 2002. Reservoir corrections for marine samples from the south Atlantic coast, Santa Catarina State, Brazil. Radiocarbon 44(3):145–8.Google Scholar
Emperaire, J, Laming, A. 1956. Les sambaquis de la côte méridionale du Brésil. Journal de la Société des Américanistes 45:5–163. In Portuguese.Google Scholar
Gaspar, M. 2000. Sambaqui: Arqueologia do Litoral Brasileiro. Zahar, Jorge, editor. Rio de Janeiro: Coleção Descobrindo o Brasil. 89 p.Google Scholar
Hua, Q, Jacobsen, GE, Zoppi, U, Lawson, EM, Williams, AA, Smith, AM, McGann, MJ. 2001. Progress in radiocarbon target preparation at the ANTARES AMS Centre. Radiocarbon 43(2A):275–82.Google Scholar
Hurt, WR. 1974. The Interrelationships Between the Natural Environment and Four Sambaquis, Coast of Santa Catarina, Brazil. Bloomington: Indiana University Museum, Occasional Papers and Monographs 1. 23 p.Google Scholar
Laming-Emperaire, A. 1968. Missions archéologiques françaises au chili austral et au Brésil méridional: datations de quelques sites par le radiocarbone. Journal de la Société des Américanistes 57:77–99. In French.CrossRefGoogle Scholar
Lorenzzetti, JA, Gaeta, SA. 1996. The Cape Frio upwelling effect over the South Brazil Bight northern sector shelf waters: a study using AVHRR images. In: XXXI International Archaeological Photogram Remote Sense (B7). Vienna: ISPRS. p 448–53.Google Scholar
Mahiques, MM, Bícego, MC, Silveira, ICA, Sousa, SHM, Lourenço, RA, Fukumoto, MM. 2005. Modern sedimentation in the Cabo Frio upwelling system, southeastern Brazilian shelf. Anais da Academia Brasileira de Ciências 77(3):535–48.CrossRefGoogle Scholar
Martin, L, Suguio, K, Flexor, JM. 1984. Informações adicionais fornecidas pelos sambaquis na reconstrução de paleolinhas de praia quaternária: exemplos da costa do Brasil. Revista Pré-História 6:128–47. In Portuguese.Google Scholar
Martin, L, Suguio, K, Flexor, JM. 1986. Relative sea-level reconstruction during the last 7,000 years along the states of Paraná and Santa Catarina coastal plains: additional information derived from shell middens. Quaternary of South America and Antarctic Peninsula 4: 219–36.Google Scholar
Moreira da Silva, P de C. 1973. A ressurgência de Cabo Frio. Instituto de Pesquisas Marinhas 78:1–56. In Portuguese.Google Scholar
Mueller, K, Muzikar, P. 2002. Quantitative study of contamination effects in AMS C-14 sample processing. Nuclear Instruments and Methods in Physics Research B 197(1–2):128–33.Google Scholar
Schmitt, R da S, Trouw, RAJ, Van Schmus, WR, Pimentel, MM. 2004. Late amalgamation in the central part of West Gondwana: new geochronological data and the characterization of a Cambrian collisional orogeny in the Ribeira Belt (SE Brazil). Precambrian Research 133(1–2):29–61.Google Scholar
Slota, PJ Jr, Jull, AJT, Linick, TW, Toolin, LJ. 1987. Preparation of small samples for 14C accelerator targets by catalytic reduction of CO. Radiocarbon 29(2):303–6.Google Scholar
Suguio, K, Martin, L, Flexor, JM. 1992. Paleoshorelines and the sambaquis of Brazil. In: Johnson, LL, Stright, M, editors. Paleoshorelines and Prehistory: An Investigation of Method. London: CRC Press. p 83–99.Google Scholar
Tenório, MC, Afonso, MC, Savi, DC, Pinto, DC, Gonzalez, MMB, Amenomori, SN, Valente, RC. 2005. Os sítios da Ilha de Cabo Frio. In: XIII Congresso da Sociedade de Arqueologia Brasileira. Resumos… [CD-ROM]. Campo Grande. 26 p. In Portuguese.Google Scholar