Tzedakis, Polychronis C; Margari, Vasiliki; Skinner, Luke C; Menviel, Laurie; Capron, Emilie; Rhodes, Rachael H; Mleneck-Vautravers, Maryline J; Ezat, Mohamed M; Martrat, Belén; Grimalt, Joan O; Hodell, David A (2020): Elemental ratios from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.919844, In: Tzedakis, PC et al. (2020): Palaeoceanographic, sediment and pollen data from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.919846
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Abstract:
XRF Analysis: Archive halves of sections from Core MD01-2444 were analysed using an Avaatech XRF core scanner at the University of Cambridge. The core surface was carefully scraped cleaned and covered with a 4-mm thin SPEXCertiPrep Ultralene foil to avoid contamination and minimize desiccation. Each section was measured using a current of 0.2mA at three different voltages: 10 kV, 30 kV using a thin lead filter, and 50 kV using a copper filter. XRF data were collected every 2.5 mm. The length and width of the irradiated surface was 2.5 and 12 mm, respectively, with a count time of 40s. The record was generated by D.A. Hodell and S. Crowhurst.
Age model: The age model was developed by aligning the abrupt transitions of d18O record of G. bulloides in core MD01-2444 to warming and cooling events in the NGRIP d18Oice record, presented on: (i) the GICC05 timescale [Svensson, A. et al. A 60,000 year Greenland stratigraphic ice core chronology. Clim. Past 4, 47–57 (2008)]; and (ii) the WD2014: modified timescale, whereby NGRIP GICC05 ice ages 31.2–67.2 ka are multiplied by 1.0063. [Buizert, C. et al. The WAIS Divide deep ice core WD2014 chronology – Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Clim. Past 11, 153-173 (2015)].
Supplement to:
Margari, Vasiliki; Skinner, Luke C; Menviel, Laurie; Capron, Emilie; Rhodes, Rachael H; Mleneck-Vautravers, Maryline J; Ezat, Mohamed M; Martrat, Belén; Grimalt, Joan O; Hodell, David A; Tzedakis, Polychronis C (2020): Fast and slow components of interstadial warming in the North Atlantic during the last glacial. Communications Earth & Environment, 1(1), https://doi.org/10.1038/s43247-020-0006-x
Further details:
Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015
Svensson, Anders M; Andersen, Katrine K; Bigler, Matthias; Clausen, Henrik Brink; Dahl-Jensen, Dorthe; Davies, Siwan M; Johnsen, Sigfús Jóhann; Muscheler, Raimund; Parrenin, Frédéric; Rasmussen, Sune Olander; Röthlisberger, Regine; Seierstad, Inger K; Steffensen, Jørgen Peder; Vinther, Bo Møllesøe (2008): A 60 000 year Greenland stratigraphic ice core chronology. Climate of the Past, 4(1), 47-57, https://doi.org/10.5194/cp-4-47-2008
Coverage:
Latitude: 37.565000 * Longitude: -10.134000
Minimum DEPTH, sediment/rock: 9.00 m * Maximum DEPTH, sediment/rock: 13.67 m
Event(s):
MD01-2444 * Latitude: 37.565000 * Longitude: -10.134000 * Elevation: -2656.0 m * Campaign: MD123 (GEOSCIENCES, MARMARCORE) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Tzedakis, Polychronis C | Geocode | |
| 2 | Age model | Age model | ka | Tzedakis, Polychronis C | Age model, GICC05 | |
| 3 | Age model | Age model | ka | Tzedakis, Polychronis C | Age model, WD2014 | |
| 4 | Zirconium/Strontium ratio | Zr/Sr | Tzedakis, Polychronis C | X-ray fluorescence core scanner (XRF), Avaatech | ||
| 5 | Calcium/Titanium ratio | Ca/Ti | Tzedakis, Polychronis C | X-ray fluorescence core scanner (XRF), Avaatech |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
7450 data points
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