Stable isotopes of detrital carbonate from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3

doi:doi:10.1594/PANGAEA.919838

Stable isotopes of detrital carbonate from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3

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.

BibTex:

@dataset{Tzedakis_Polychronis_C_and_Margari_Vasiliki_and_Skinner_Luke_C_and_Menviel_Laurie_and_Capron_Emilie_and_Rhodes_Rachael_H_and_Mleneck-Vautravers_Maryline_J_and_Ezat_Mohamed_M_and_Martrat_Belén_and_Grimalt_Joan_O_and_Hodell_David_A_2020,
    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.},
    author = {Tzedakis, Polychronis C and Margari, Vasiliki and Skinner, Luke C and Menviel, Laurie and Capron, Emilie and Rhodes, Rachael H and Mleneck-Vautravers, Maryline J and Ezat, Mohamed M and Martrat, Belén and Grimalt, Joan O and Hodell, David A},
    doi = {10.1594/PANGAEA.919838},
    institution = {PANGAEA (Chemistry)},
    keyword = {'Heinrich Stadials', 'Interstadials', 'MIS 3', 'Portuguese Margin'},
    title = {Stable isotopes of detrital carbonate from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-919838},
    year = {2020}
}