14C data of two North Atlantic sediment cores over the last 25,000 years

DOI

To examine the influence of the Atlantic Meridional Overturning Circulation (AMOC) on 231Pa/230Th in the North Atlantic from the Last Glacial Maximum (LGM) to the Holocene, we developed new age models for two sediment cores (MSM58-13-2 and MSM58-28-4). These models were based on radiocarbon (14C) ages of mixed planktonic foraminifera species, measured by accelerator mass spectrometry at the University of Bern. Radiocarbon ages were calibrated using the IntCal20 calibration curve with PaleoDataView. Marine reservoir effects were corrected using location- and time-dependent estimates for open-ocean surface waters based on model simulations covering the last 50 kyr. The calibrated and reservoir-corrected ages were then used to construct the age models with Bacon v2.3.9.1, applying 10,000 iterations and modified Student's t-distribution parameters (t.a.=10; t.b.=11).

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.993442
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.993442
Provenance
Creator Gerber, Lukas ORCID logo; Lippold, Jörg ORCID logo; Repschläger, Janne ORCID logo; Friedrich, Oliver ORCID logo; Testorf, Pierre; Ehnis, Manuel (ORCID: 0009-0007-6425-122X); Süfke, Finn ORCID logo; Blaser, Patrick ORCID logo; Pöppelmeier, Frerk ORCID logo; Jaccard, Samuel L ORCID logo
Publisher PANGAEA
Publication Year 2026
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 277128673 https://gepris.dfg.de/gepris/projekt/277128673?context=projekt&task=showDetail&id=277128673 Quantification of Past Ocean Dynamics; Horizon Europe https://doi.org/10.13039/100018693 Crossref Funder ID 101065424 https://doi.org/10.3030/101065424 Quantitative reconstruction of past seawater oxygen concentrations (OxyQuant); Horizon Europe https://doi.org/10.13039/100018693 Crossref Funder ID 101137601 doi:10.3030/101137601 Climate Tipping Points: Uncertainty-aware quantification of Earth system tipping potential from observations and models and assessment of associated climatic, ecological, and socioeconomic impacts (ClimTip); Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 111588 https://data.snf.ch/grants/grant/111588 Quantifying changes in the rate of North Atlantic Deep and Intermediate Water formation associated with abrupt climate changes during the late Quaternary; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 206021_2055399
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 96 data points
Discipline Earth System Research
Spatial Coverage (-35.536W, 38.583S, -31.080E, 40.401N); North Atlantic Ocean
Temporal Coverage Begin 2016-09-19T18:13:00Z
Temporal Coverage End 2016-09-24T12:05:00Z