Oxygen-18 isotope ratios from the EPICA Dome C ice core at 11 cm resolution

DOI

Abstract: We present here a high resolution (0.11 m) dataset of the isotopic composition of the ice (δ¹⁸O) from the EPICA Dome-C ice core. The dataset covers the depth range 7.81-3189.89 m (0.05-802.427 ka). Analysis is performed in Copenhagen with a CO~2~ equilibration Mass Spectrometry system (Finnegan MAT 251). Samples of 5 ml are equilibrated with CO~2~ for 6 hours under vibrations, thereafter injected to the mass spectrometer where the ¹⁸O/¹⁶O ratio is obtained on masses 46 and 44. All measurements reported on the SMOW-SLAP scale using a 2-point linear calibration (standards used: Crete: -33.61 ‰ and DC02: -54.11 ‰ . The combined uncertainty of the record is 0.07 ‰. We interpolate the dataset on the AICC2012 chronology.

The record is not continuous and presents 14 gaps in the following depth ranges:1. 120.01 - 120.67 (7 samples)2. 234.41 - 234.85 (5 samples)3. 288.86 - 290.40 (15 samples)4. 656.81 - 659.45 (28 samples)5. 1528.56 - 1539.45 (100 samples)6. 1583.56 - 1594.45 (100 samples)7. 1638.56 - 1649.45 (100 samples)8. 1693.56 - 1704.45 (100 samples)9. 1748.56 - 1759.45 (100 samples)10. 1803.56 - 1814.45 (100 samples)11. 2141.81 - 2144.45 (25 samples)12. 2238.06 - 2239.6 (15 samples)13. 2249.06 - 2317.7 (625 samples)14. 2756.16 - 2794.55 (350 samples)

Identifier
DOI https://doi.org/10.1594/PANGAEA.939445
Related Identifier https://doi.org/10.5281/zenodo.5653088
Related Identifier https://doi.org/10.1016/j.quascirev.2015.01.031
Related Identifier https://doi.org/10.3189/172756405781812556
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.939445
Provenance
Creator Gkinis, Vasileios ORCID logo; Dahl-Jensen, Dorthe ORCID logo; Steffensen, Jørgen Peder ORCID logo; Vinther, Bo Møllesøe (ORCID: 0000-0002-6078-771X); Landais, Amaëlle ORCID logo; Jouzel, Jean; Masson-Delmotte, Valerie; Cattani, Olivier; Minster, Bénédicte; Grisart, Antoine ORCID logo; Hörhold, Maria ORCID logo; Stenni, Barbara ORCID logo; Selmo, Enricomaria
Publisher PANGAEA
Publication Year 2021
Funding Reference Fifth Framework Programme https://doi.org/10.13039/100011104 Crossref Funder ID EVK2-CT-2000-00077 https://cordis.europa.eu/project/id/EVK2-CT-2000-00077 European Project for Ice Coring in Antarctica; Fourth Framework Programme https://doi.org/10.13039/100011105 Crossref Funder ID ENV4980702 https://cordis.europa.eu/project/id/ENV4980702 European Project for Ice Coring in Antarctica
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 114049 data points
Discipline Earth System Research
Spatial Coverage (123.350 LON, -75.100 LAT); Dome C, Antarctica
Temporal Coverage Begin 1993-01-01T00:00:00Z
Temporal Coverage End 2004-12-31T00:00:00Z