Mayers, Kyle M J; Vollmar, Nele Manon; Cordier, Tristan; Weiner, Agnes K M; Müller, Juliane; De Schepper, Stijn (2026): Radiocarbon dates from Yermak Plateau sediment core KH21-234-34GC1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.989273
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Published: 2026-01-30 • DOI registered: 2026-01-30
Abstract:
Radiocarbon dates were determined by picking shells of Neogloboquadrina pachyderma at four depths from marine sediment core KH21-234-34GC collected from the Yermak Plateu (81.2199280 ˚N, 2.3710955˚E ) with a gravity corer at 1011m water depth during cruise KH21-234. Accelerator mass spectrometry (AMS) 14C dates from the radiocarbon lab at ETH Zurich, and calibrated ages were calculated used the functions BchronCalibrate:sampleAges and Bchronology:PredictAges from the statistical package BChron (version 4.7.7).
Supplement to:
Mayers, Kyle M J; Vollmar, Nele Manon; Cordier, Tristan; Weiner, Agnes K M; Müller, Juliane; Larsen, Aud; De Schepper, Stijn (2026): First-year sea ice history in the Arctic Ocean inferred from ancient DNA of Polerella glacialis over the past 50,000 years. Earth and Planetary Science Letters, 678, 119809, https://doi.org/10.1016/j.epsl.2025.119809
Funding:
European Research Council (ERC), grant/award no. 101118519: Into the Blue - Resolving past Arctic greenhouse climate (i2B)
Coverage:
Latitude: 81.219928 * Longitude: 2.371096
Date/Time Start: 2021-07-07T14:42:29 * Date/Time End: 2021-07-07T14:42:29
Minimum DEPTH, sediment/rock: 0.69 m * Maximum DEPTH, sediment/rock: 4.54 m
Event(s):
KH21-234-34GC * Latitude: 81.219928 * Longitude: 2.371096 * Date/Time: 2021-07-07T14:42:29 * Elevation: -1011.0 m * Recovery: 466 cm * Campaign: KH21-234 * Basis: Kronprins Haakon * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Site | Site | Mayers, Kyle M J | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Mayers, Kyle M J | Geocode | |
| 3 | Age, dated | Age dated | ka | Mayers, Kyle M J | Age, 14C AMS | 14C AMS |
| 4 | Age, dated, error | Age dated e | ± | Mayers, Kyle M J | Age, 14C AMS | |
| 5 | Laboratory code/label | Lab label | Mayers, Kyle M J | Sample ID | ||
| 6 | Reference/source | Reference | Mayers, Kyle M J | |||
| 7 | Calibration | Calibration | Mayers, Kyle M J | Calibration curve | ||
| 8 | Calendar age, minimum/young | Cal age min | ka BP | Mayers, Kyle M J | Age, 14C calibrated | 2.5% |
| 9 | Calendar age | Cal age | ka BP | Mayers, Kyle M J | Age, 14C calibrated | |
| 10 | Calendar age, maximum/old | Cal age max | ka BP | Mayers, Kyle M J | Age, 14C calibrated | 97.5% |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
36 data points