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You, Defang; Stein, Ruediger; Fahl, Kirsten; Schefuß, Enno (2024): Complete analysis of sediment core MSM12/2-05-01 from the Labrador Sea: biomarkers, foraminiferal assemblages, XRF scanning, coarse fractions, and bulk parameters [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.965118

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Abstract:
These datasets originate from the gravity core MSM12/2-05-01 (57.538500, -48.738700, recovery 1494 cm, 3492 m water depth) taken during R/V Maria S. Merian cruise MSM12/2 in 2009 in the eastern Labrador Sea (Eirik Drift). These datasets show the history of sea surface characteristics in the Labrador Sea and the surrounding ice sheet activities, representing the last 50 ka. The XRF, biomarker, and planktic/benthic foraminifer data document the outstanding collapse of the Laurentide Ice Sheet/iceberg discharge during Heinrich Events (i.e., HE5, HE4, HE2, and HE1) and the occurrence of meltwater plumes from the Greenland Ice Sheet and/or Laurentide Ice Sheet during the last deglaciation. Such meltwater discharges have caused surface freshening in the Labrador Sea and, consequently, decreased sea surface temperatures and phytoplankton production. Enhanced Irminger Current inflow might have caused (sub-)surface warming in the Labrador Sea and triggered the retreat of ice sheets/meltwater discharge. In contrast to relatively low open-water productivity during the glacial period, the Last Glacial Maximum was characterized by increased sea ice algae and phytoplankton production, suggesting the presence of a polynya in front of the southern Greenland Ice Sheet.
Keyword(s):
Biomarkers; Coarse fraction; Foraminifera; Ice Sheet; Irminger Current; Labrador Sea; Sea surface; XRF
Funding:
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
Coverage:
Latitude: 57.538500 * Longitude: -48.738700
Date/Time Start: 2009-06-30T06:34:00 * Date/Time End: 2009-06-30T06:34:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
10 datasets

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Datasets listed in this bundled publication

  1. You, D; Stein, R; Fahl, K et al. (2024): Concentration and accumulation rates of highly branched isoprenoid and sterols of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965374
  2. You, D; Stein, R; Fahl, K et al. (2024): Concentration and accumulation rates of alkenone, relative abundance of C37:4, and SST calculation based on the alkenone concentration of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965376
  3. You, D; Stein, R; Fahl, K et al. (2024): Total organic carbon content of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965116
  4. You, D; Stein, R; Fahl, K et al. (2024): XRF scanning data of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965378
  5. You, D; Stein, R; Fahl, K et al. (2024): Sand size fraction of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965380
  6. You, D; Stein, R; Fahl, K et al. (2024): Ice rafted debris content of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965117
  7. You, D; Stein, R; Fahl, K et al. (2024): Dolomite content of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965381
  8. You, D; Stein, R; Fahl, K et al. (2024): Stable hydrogen isotope compositions of palmitic acid of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965383
  9. You, D; Stein, R; Fahl, K et al. (2024): Planktic foraminifera of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965384
  10. You, D; Stein, R; Fahl, K et al. (2024): Benthic foraminifera of sediment core MSM12/2-05-01. https://doi.org/10.1594/PANGAEA.965385