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): Stable isotopes of detrital carbonate from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.919838, 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:
Stable isotopes of detrital carbonate were measured on single grains taken from the peaks of HL4 (10.06 m) and HL5 (11.98 m) in MD01-2444. Detrital carbonate grains were picked from the >150 μm fraction and leached in a weak acid. Each detrital carbonate grain was ground and between 20 and 60 μg of powdered sample was loaded into Exetainer vials and sealed with silicone rubber septa using a screw cap. The samples were flushed with CP grade helium, then acidified with 104% orthophosphoric acid, left to react for 1 hour at 70 degrees Celsius and then analysed using a Thermo Gasbench preparation system attached to a Thermo Delta V mass spectrometer in continuous flow mode. Each run of samples was accompanied by 10 reference carbonates (Carrara Z) and 2 control samples (Fletton Clay). Carrara Z has been calibrated to VPDB using the international standard NBS19. The results are reported with reference to the international standard VPDB and the precision is better than ±0.08 per mil for d13C and ± 0.10 per mil for d18O. The record was generated by D.A. Hodell.
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: 10.06 m * Maximum DEPTH, sediment/rock: 11.98 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 | δ13C, carbonate | δ13C carb | ‰ PDB | Tzedakis, Polychronis C | Mass spectrometer ThermoFisher Delta V | |
| 3 | δ18O, carbonate | δ18O carb | ‰ PDB | Tzedakis, Polychronis C | Mass spectrometer ThermoFisher Delta V | |
| 4 | Sediment layer | Sed layer | Tzedakis, Polychronis C |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
78 data points
Data
| 1 Depth sed [m] | 2 δ13C carb [‰ PDB] | 3 δ18O carb [‰ PDB] | 4 Sed layer |
|---|---|---|---|
| 10.06 | 0.04 | -7.31 | HL4 |
| 10.06 | 0.33 | -6.13 | HL4 |
| 10.06 | -0.40 | -5.96 | HL4 |
| 10.06 | -0.73 | -5.87 | HL4 |
| 10.06 | 0.76 | -5.85 | HL4 |
| 10.06 | 1.20 | -7.02 | HL4 |
| 10.06 | 0.21 | -4.69 | HL4 |
| 10.06 | 1.56 | -7.77 | HL4 |
| 10.06 | -0.68 | -4.43 | HL4 |
| 10.06 | 0.38 | -3.98 | HL4 |
| 10.06 | 1.86 | -7.42 | HL4 |
| 10.06 | 0.26 | -5.26 | HL4 |
| 10.06 | -2.44 | -6.15 | HL4 |
| 10.06 | -2.10 | -9.36 | HL4 |
| 10.06 | -0.30 | -7.62 | HL4 |
| 10.06 | 0.40 | -4.29 | HL4 |
| 10.06 | 0.76 | -4.22 | HL4 |
| 10.06 | 0.75 | -5.12 | HL4 |
| 10.06 | -0.75 | -6.15 | HL4 |
| 10.06 | -0.11 | -6.21 | HL4 |
| 10.06 | -0.58 | -4.31 | HL4 |
| 10.06 | 0.12 | -4.53 | HL4 |
| 10.06 | -1.17 | -7.42 | HL4 |
| 11.98 | -1.19 | -5.62 | HL5 |
| 11.98 | -0.65 | -4.92 | HL5 |
| 11.98 | -0.42 | -3.13 | HL5 |