LASNPA & WONP-NURT 2017

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

25 Oct 2017, 15:00

1h 15m

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.