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Davtian, Nina; Bard, Edouard; Darfeuil, Sophie; Ménot, Guillemette; Rostek, Frauke (2021): Biomarker indices and concentrations and biomarker-based temperature estimates from Iberian Margin cores MD99-2331, MD95-2040 and MD95-2042 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.927657

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Abstract:
Biomarker metadata and data for cores MD99-2331, MD95-2040, and MD95-2042: depth, age, summed OH-GDGT, iGDGT, and di-unsaturated and tri-unsaturated C37 alkenone concentrations, OH-GDGT-based, iGDGT-based, and alkenone-based paleothermometric indices, GDGT-2/GDGT-3 ratio, and biomarker-based sea surface temperature (SST) and 0‐ to 200‐m sea temperature (subT; gamma function probability distribution for target temperatures with a = 4.5 and b = 15) estimates. The 1σ analytical uncertainties are 0.008 (0.5 °C) for RI-OH, 0.007 (0.2 °C) for RI-OH′, 0.003 (0.1 °C) for TEX86, 0.263 for GDGT-2/GDGT-3, and 0.010 (0.26 °C) for UK′37. RI-OH′-SST estimates are from the following global calibration: SST = (RI-OH′ + 0.029)/0.0422 (Fietz et al., 2020). RI-OH-SST estimates are from the following global calibration: SST = (RI-OH − 1.11)/0.018 (Lü et al., 2015). TEX86H-SST estimates are from the following regional paleocalibration: SST = 68.4 × TEX86H + 33.0 (Darfeuil et al., 2016). UK′37-SST estimates are from the following global calibration: SST = 29.876 × UK′37 − 1.334 (Conte et al., 2006). Bayesian calibrations were also used for TEX86-SST and TEX86-subT estimates (BAYSPAR; Tierney & Tingley, 2014, 2015) and for UK′37-SST estimates (BAYSPLINE; Tierney & Tingley, 2018). Core MD95-2040 UK′37 and summed di-unsaturated and tri-unsaturated C37 alkenone concentration data are from Pailler and Bard (2002). Core MD95-2042 UK′37 and summed di-unsaturated and tri-unsaturated C37 alkenone concentration data covering the 70–45 ka BP period are from Darfeuil et al. (2016). GDGT data for core MD95-2042 samples with TEX86 values below 0.4 are deemed anomalous and are thus excluded from any description and analysis. MIS, Marine Isotope Stage; DO, Dansgaard–Oeschger event; GS, Greenland stadial; H, Heinrich event; GDGT, glycerol dialkyl glycerol tetraether; and N/A, not available.
Keyword(s):
Alkenones; GDGTs; Iberian margin; RI-OH; Sea surface temperature; TEX86; UK'37
Supplement to:
Davtian, Nina; Bard, Edouard; Darfeuil, Sophie; Ménot, Guillemette; Rostek, Frauke (2021): The Novel Hydroxylated Tetraether Index RI‐OH′ as a Sea Surface Temperature Proxy for the 160‐45 ka BP Period Off the Iberian Margin. Paleoceanography and Paleoclimatology, 36(3), e2020PA004077, https://doi.org/10.1029/2020PA004077
Project(s):
International Marine Global Change Study (IMAGES)
Coverage:
Median Latitude: 40.177222 * Median Longitude: -9.903666 * South-bound Latitude: 37.799833 * West-bound Longitude: -10.166500 * North-bound Latitude: 42.150000 * East-bound Longitude: -9.683330
Date/Time Start: 1995-07-07T00:00:00 * Date/Time End: 1999-09-12T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets

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Datasets listed in this bundled publication

  1. Davtian, N; Bard, E; Darfeuil, S et al. (2021): Biomarkers of sediment core MD95-2040. https://doi.org/10.1594/PANGAEA.927617
  2. Davtian, N; Bard, E; Darfeuil, S et al. (2021): Biomarkers of sediment core MD95-2042. https://doi.org/10.1594/PANGAEA.927622
  3. Davtian, N; Bard, E; Darfeuil, S et al. (2021): Biomarkers of sediment core MD99-2331. https://doi.org/10.1594/PANGAEA.927652