Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina

Accelerator mass spectrometry (AMS) radiocarbon dates were obtained for 18 mollusk shells collected alive along the Buenos Aires province coast, Argentina, over the period AD 1914-1935. Reservoir ages were estimated for all samples on the basis of the tree-ring calibration curve for the Southern Hem...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Gómez, Eduardo A., Borel, C. Marcela, Aguirre, Marina Laura, Martínez, Daniel E.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Naturales
Datación por radiocarbono
coastal waters
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83377
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83377
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Datación por radiocarbono
coastal waters
Argentina
spellingShingle Ciencias Naturales
Datación por radiocarbono
coastal waters
Argentina
Gómez, Eduardo A.
Borel, C. Marcela
Aguirre, Marina Laura
Martínez, Daniel E.
Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
topic_facet Ciencias Naturales
Datación por radiocarbono
coastal waters
Argentina
description Accelerator mass spectrometry (AMS) radiocarbon dates were obtained for 18 mollusk shells collected alive along the Buenos Aires province coast, Argentina, over the period AD 1914-1935. Reservoir ages were estimated for all samples on the basis of the tree-ring calibration curve for the Southern Hemisphere (SHCal04, McCormac et al. 2004) and the marine ΔR values calculated as the difference between the conventional <SUP>14</SUP>C age and the age deduced from the marine, mixed-layer model calculation (Marine04, Hughen et al. 2004). For most coastal locations, a great ΔR scatter was observed, ranging from 191 to 2482 yr, which is explained by the input of varying content of dissolved carbonate by rivers and groundwater ("hardwater effect") and indicates a serious limitation for shell-based <SUP>14</SUP>C chronologies. Within the interior of Bahía Blanca estuary, ΔR values ranged from -40 to 50 ± 46 as a consequence of the local geological particularities of the environment. This suggests that, with some restrictions, the marine calibration curve with standard parameters (ΔR = 0) could be used at this location.
format Articulo
Articulo
author Gómez, Eduardo A.
Borel, C. Marcela
Aguirre, Marina Laura
Martínez, Daniel E.
author_facet Gómez, Eduardo A.
Borel, C. Marcela
Aguirre, Marina Laura
Martínez, Daniel E.
author_sort Gómez, Eduardo A.
title Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
title_short Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
title_full Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
title_fullStr Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
title_full_unstemmed Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina
title_sort radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of argentina
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/83377
work_keys_str_mv AT gomezeduardoa radiocarbonreservoiragesandhardwatereffectforthenortheasterncoastalwatersofargentina
AT borelcmarcela radiocarbonreservoiragesandhardwatereffectforthenortheasterncoastalwatersofargentina
AT aguirremarinalaura radiocarbonreservoiragesandhardwatereffectforthenortheasterncoastalwatersofargentina
AT martinezdaniele radiocarbonreservoiragesandhardwatereffectforthenortheasterncoastalwatersofargentina
bdutipo_str Repositorios
_version_ 1764820488554545155

Ejemplares similares