Age determination of Northwest Atlantic sediment cores ...

• Main Authors: Wharton, Jack, Renoult, Martin, Gebbie, Geoffrey, Keigwin, Lloyd D, Marchitto, Thomas M, Maslin, Mark, Oppo, Delia W, Thornalley, David J R
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: AMOC; Blake Outer Ridge; Foraminiferal geochemistry; Horizontal circulation; Last Glacial Maximum; Middle Holocene; North Atlantic; North Atlantic Deep Water; Oxygen and carbon stable isotopes; Paleoceanography; Subtropical gyre; Event label; Latitude of event; Longitude of event; Elevation of event; Transect; Sample ID; DEPTH, sediment/rock; Offset; Age, dating method; Age, dated material; Fraction modern carbon; Fraction modern carbon, error; Age, dated; Age, dated, uncertainty; AGE; Comment; Composite Core; Jumbo Piston Core; MultiCorer; Gravity corer; Giant gravity corer; Piston corer; calculated, 1 sigma; Age, 14C AMS; Leg172; AR36; KNR140; KNR178; Joides Resolution; Neil Armstrong; Knorr; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe ATLAS; Beyond the instrumental record: Reconstructing Atlantic overturning over the past 7000 yrs ReconAMOC; Explaining and predicting the ocean conveyor EPOC; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time iAtlantic; Northwest Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.967476; https://doi.pangaea.de/10.1594/PANGAEA.967476

This dataset contains new and updated age models for sediment cores from depth transects at Blake Outer Ridge and Cape Hatteras. Primarily, this includes new AMS-14C ages measured on planktic and/or benthic foraminifera, as well as δ18O (and other) tie points. We also include previously published 14C that has been recalibrated using new reservoir ages and updated calibration curves (Marine 20; ∆R=-128±68; Heaton et al., 2020). AMS-14C measurements were made at the NERC NEIF Radiocarbon Laboratory (University of East Kilbride, Scotland, UK), KCCAMS Radiocarbon Facility (University of California, Irvine, CA, USA), and NOSAMS Facility (Woods Hole Oceanographic Institution, MA, USA), following standard procedures. ...