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Wharton, Jack; Renoult, Martin; Gebbie, Geoffrey; Keigwin, Lloyd D; Marchitto, Thomas M; Maslin, Mark; Oppo, Delia W; Thornalley, David J R: Benthic foraminiferal oxygen isotope data (δ18O) and age models from Northwest Atlantic sediment cores forming depth transects at Blake Outer Ridge and Cape Hatteras [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967462 (dataset in review)

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Abstract:
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.
Keyword(s):
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
Project(s):
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)
Funding:
Horizon 2020 (H2020), grant/award no. 678760: A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe
Horizon 2020 (H2020), grant/award no. 818123: Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
Horizon Europe (HorizonEU), grant/award no. 101059547: EPOC
National Science Foundation (NSF), grant/award no. OCE-1304291: Holocene reconstructions of Iceland-Scotland Overflow and the Deep Western Boundary Current
Natural Environment Research Council (NERC), grant/award no. NE/L002485/1: The London NERC Doctoral Training Partnership
Natural Environment Research Council (NERC), grant/award no. NE/S009736/1: ReconAMOC
Coverage:
Median Latitude: 34.809393 * Median Longitude: -71.482613 * South-bound Latitude: 29.080000 * West-bound Longitude: -76.407000 * North-bound Latitude: 39.280000 * East-bound Longitude: -48.540000
Date/Time Start: 1993-11-03T00:00:00 * Date/Time End: 2019-09-02T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
4 datasets

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Datasets listed in this bundled publication

  1. Wharton, J; Renoult, M; Gebbie, G et al. (in review): Vertical δ18O profiles from Cape Hatteras and Blake Outer Ridge during the Mid-Holocene (2-6 ka BP) and LGM (19-23 ka BP). https://doi.pangaea.de/10.1594/PANGAEA.967463
  2. Wharton, J; Renoult, M; Gebbie, G et al. (in review): Monospecific benthic δ18O data from Cape Hatteras and Blake Outer Ridge during the Mid-Holocene (2-6 ka BP) and LGM (19-23 ka BP). https://doi.pangaea.de/10.1594/PANGAEA.967471
  3. Wharton, J; Renoult, M; Gebbie, G et al. (in review): Age determination of Northwest Atlantic sediment cores. https://doi.pangaea.de/10.1594/PANGAEA.967476
  4. Wharton, J; Renoult, M; Gebbie, G et al. (in review): Downcore and single benthic foraminiferal δ18O data from Cape Hatteras and Blake Outer Ridge during the last 25 ka BP. https://doi.pangaea.de/10.1594/PANGAEA.967472