23–27 Oct 2017
Havana, Cuba
America/Havana timezone

Radiocarbon marine reservoir effect. Regional offset for the Northwest coast of Cuba

25 Oct 2017, 15:00
1h 15m
Room “Fernando Portuondo”

Room “Fernando Portuondo”

Poster Nuclear Analytical Techniques and Applications in Art, Archeology, Environment, Energy, Space and Security Poster Session - NAT

Speaker

M. Diaz (Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Cuba & Universidade Federal Fluminense, Brazil.)

Description

The regional offset correction ΔR of Marine Reservoir Effect (MRE), crucial for correcting $^{14}$C ages calibration for marine influenced samples, was determined for Cuban Northwest coast. Fifteen different locations were studied by $^{14}$C dating of pre-bomb known-age marine shells specimens of bivalves and gastropods from the Felipe Poey Museum collection. The distribution of results indicates ΔR values from -46 ± 38 to 140 ± 52 $^{14}$C yr and a possible pattern related to the position along the coast and ocean dynamics. We present both mean values for each region and a general ΔR of 28 ± 13 $^{14}$C yr for the northwestern coast of Cuba.

Authors

M. Diaz (Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Cuba & Universidade Federal Fluminense, Brazil.) K. D. Macario (Departamento de Física, Universidade Federal Fluminense, Brazil.) P.R.S. Gomes (Departamento de Física, Universidade Federal Fluminense, Brazil.) L. Álvarez-Lajonchere (Museo Felipe Poey, Universidad de la Habana, U.H., Cuba.) O. Aguilera (Departamento de Biologia Marinha, Universidade Federal Fluminense, Brazil.) E. Q. Alvares (Universidade Federal Fluminense, Brazil & Oxford Radiocarbon Accelerator Unit, University of Oxford, United Kingdom.)

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