Benthic foraminiferal oxygen isotope data (δ18O) and age models from Northwest Atlantic sediment cores forming depth transects at Blake Outer Ridge and Cape Hatteras ...

• Main Authors: Wharton, Jack, Renoult, Martin, Gebbie, Geoffrey, Keigwin, Lloyd D, Marchitto, Thomas M, Maslin, Mark, Oppo, Delia W, Thornalley, David J R
• Format: Article in Journal/Newspaper
• 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; 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.967462; https://doi.pangaea.de/10.1594/PANGAEA.967462

This dataset is used to reconstruct the hydrography of the Northwest Atlantic during the Mid-Holocene (2-6 ka BP) and Last Glacial Maximum (19-23 ka BP). It consists of: (1) vertical δ18O profiles derived from multi-species benthic foraminiferal δ18O measurements from sediment cores in two depth transects at Cape Hatteras (~36-39°N) and Blake Outer Ridge (~30-33°N), (2) the monospecific benthic foraminiferal δ18O measurements that underpin these profiles, (3) age constraints, including new radiocarbon dates, used to determine the relative positions of the Mid-Holocene and Last Glacial Maximum in each of the sediments cores in each transect, and (4) multi-species downcore benthic δ18O measurements from four of the sediment cores in the Cape Hatteras transect. ...