Citation:

PANGAEA.939445

Name: Oxygen-18 isotope ratios from the EPICA Dome C ice core at 11 cm resolution
Published: 2021-12-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Antarctica; d18O; Dome C; EPICA; ice cores; Isotope ratio; mass spectrometry; water isotopes

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Abstract:

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.

Keyword(s):

Antarctica; d18O; Dome C; EPICA; ice cores; Isotope ratio; mass spectrometry; water isotopes

Related to:

Gkinis, Vasileios (2011): High resolution water isotope data from ice cores. Zenodo, https://doi.org/10.5281/zenodo.5653088

Landais, Amaëlle; Masson-Delmotte, Valerie; Stenni, Barbara; Selmo, Enricomaria; Roche, D M; Jouzel, Jean; Lambert, Fabrice; Guillevic, Myriam; Bazin, Lucie; Arzel, O; Vinther, Bo Møllesøe; Gkinis, Vasileios; Popp, Trevor (2015): A review of the bipolar see–saw from synchronized and high resolution ice core water stable isotope records from Greenland and East Antarctica. Quaternary Science Reviews, 114, 18-32, https://doi.org/10.1016/j.quascirev.2015.01.031

Further details:

Seierstad, Inger K; Johnsen, Sigfús Jóhann; Vinther, Bo Møllesøe; Olsen, Jesper (2005): The duration of the Bølling-Allerød period (Greenland Interstadial 1) in the GRIP ice core. Annals of Glaciology, 42, 337-344, https://doi.org/10.3189/172756405781812556

Project(s):

European Project for Ice Coring in Antarctica (EPICA)

Funding:

Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00077 : European Project for Ice Coring in Antarctica

Fourth Framework Programme (FP4), grant/award no. ENV4980702 : European Project for Ice Coring in Antarctica

Coverage:

Latitude: -75.100000 * Longitude: 123.350000

Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00

Minimum DEPTH, sediment/rock: 7.755 m * Maximum DEPTH, sediment/rock: 3189.835 m

Event(s):

EDC (EPICA Dome C) * Latitude: -75.100000 * Longitude: 123.350000 * Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00 * Elevation: 3233.0 m * Recovery: 3300 m * Location: Dome C, Antarctica * Campaign: * Method/Device: Ice drill (ICEDRILL) * Comment: Drill site is 56 km from the site of a previous Dome C core that provided records extending into the last glacial period, and 560 km from the site of the Vostok cores. The completion of the Dome C core was delayed when the first drilling became stuck at 788 m in 1999 (EDC96).

Comment:

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)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Depth, top/min	Depth top	m	Gkinis, Vasileios
2	Depth, bottom/max	Depth bot	m	Gkinis, Vasileios
3	DEPTH, sediment/rock	Depth sed	m	Gkinis, Vasileios		Geocode
4	Age, dated	Age dated	ka	Gkinis, Vasileios	Antarctic ice core chronology (AICC2012)
5	δ18O	δ18O	‰	Gkinis, Vasileios	Mass spectrometer Finnigan MAT 251

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

114049 data points

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