Radiocarbon ages for marine sediment cores CDH-5 and GGC-4 under the influence of Amazon Basin discharge

Dataset

DOI

Here we present radiocarbon from two marine sediment cores (CDH-5 and GGC-4) located in the western equatorial Atlantic, off the coast of the Amazon River mouth, along the path of the North Brazil Current, where Amazon-derived sediments accumulated. Radiocarbon data were obtained using radiocarbon ages of planktonic foraminifera, which were analyzed using accelerator mass spectrometry at the Woods Hole Oceanographic Institution (USA) and the Beta Analytic Laboratory (USA). All work was done at Beta in 4 in-house NEC accelerator mass spectrometers and 4 Thermo IRMSs. The "Conventional Radiocarbon Age" was calculated using the Libby half -life (5568 years), is corrected for total isotopic fraction and was used for calendar calibration where applicable.

Identifier
DOI	https://doi.org/10.1594/PANGAEA.986813
Related Identifier	References https://doi.org/10.1016/j.quascirev.2025.109425
Metadata Access	https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.986813

Provenance
Creator	Grigolato, Júlia ; Chiessi, Cristiano Mazur ; Bertassoli Junior, Dailson José ; de Carvalho Campos, Marília ; Shimizu, Marilia Harumi; Magalhães, Renê Hamada; Nace, Trevor; Sawakuchi, André Oliveira ; Wahnfried, Ingo Daniel; Neri, Rafael; Cunha, Alan Cavalcanti; Cleverson, Silva G; Baker, Paul A (ORCID: 0000-0001-9438-855X); Govin, Aline ; Zabel, Matthias
Publisher	PANGAEA
Publication Year	2025
Funding Reference	Coordenação de Aperfeicoamento de Pessoal de Nível Superior https://doi.org/10.13039/501100002322 Crossref Funder ID 49558SM ; Coordenação de Aperfeicoamento de Pessoal de Nível Superior https://doi.org/10.13039/501100002322 Crossref Funder ID 8881.712022/2022-1 ; National Council for Scientific and Technological Development https://doi.org/10.13039/501100003593 Crossref Funder ID 307179/2021-4 ; National Council for Scientific and Technological Development https://doi.org/10.13039/501100003593 Crossref Funder ID 312458/2020-7 ; National Council for Scientific and Technological Development https://doi.org/10.13039/501100003593 Crossref Funder ID 314830/2021-9 ; National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID EAR-1812681 ; National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID OCE-0823650 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2018/15123-4 https://www.fapesp.br/oportunidades/perspectivas_preteritas_sobre_limiares_criticos_do_sistema_climatico:_a_floresta_amazonica_e_a_celula_de_revolvimento_meridional_do_atlantico_(ppteam)/3957/ ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2018/23899-2 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2019/24977-0 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2021/00853-0 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2021/08085-1 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2022/06440-1 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2022/06452-0 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2022/07285-0 ; São Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2023/05764-0
Rights	Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess	true

Representation
Resource Type	Dataset
Format	text/tab-separated-values
Size	144 data points
Discipline	Earth System Research
Spatial Coverage	(-48.600 LON, 4.450 LAT); Amazon Basin