Stevenson, Mark A; Hodgson, Dominic A; Bentley, Michael J; Gröcke, Darren R; Tunstall, Neil; Longley, Chris; Graham, Alice; McClymont, Erin L (2025): Radiocarbon dating of an Antarctic snow petrel stomach oil deposit [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.980522 (DOI registration in progress), In: Stevenson, MA et al. (2025): Mid-Holocene sea-ice dynamics and climate in the northeastern Weddell Sea inferred from an Antarctic snow petrel stomach oil deposit [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.980519
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Published: 2025-11-24
Abstract:
Organic geochemistry, stable isotope analysis and elemental scans are presented here from a stomach-oil deposit collected at Heimefrontfjella Range, Dronning Maud Land, East Antarctica. Stomach-oil deposit 3012MUM2 was collected in season 2014–15 from the Boysennuten nunatak in the Heimefrontfjella Range of East Antarctica (74° 34.14'S; 11° 15.02'W). The aim of the analysis is to investigate snow petrel diet during the Holocene and in turn to infer changing sea-ice conditions in the Weddell Sea and South Atlantic sector of the Southern Ocean (Stevenson et al., Climate of the Past Discussions). The data include results from non-destructive XRF scanning, fatty acid distributions and other biomarkers of productivity and diet (Department of Geography, Durham University, Durham, U.K.) and bulk stable carbon and nitrogen isotope ratios (Department of Earth Sciences, Durham University, Durham, U.K.). The age-depth model is constrained by 12 new bulk radiocarbon measurements (Beta Analytic Inc., Miami; SUERC, Glasgow).
Keyword(s):
Related to:
Stevenson, Mark A; Hodgson, Dominic A; Bentley, Michael J; Gröcke, Darren R; Tunstall, Neil; Longley, Chris; Graham, Alice; McClymont, Erin L (2025): Mid-Holocene sea-ice dynamics and climate in the northeastern Weddell Sea inferred from an Antarctic snow petrel stomach oil deposit. https://doi.org/10.5194/egusphere-2025-513
Funding:
Horizon 2020 (H2020), grant/award no. 864637: ANTarctic Sea Ice Evolution from a novel biological archive (ANTSIE)
Leverhulme Trust, grant/award no. RL-2019-023: Unlocking evidence for Antarctic sea-ice evolution from a novel biological archive, Web: , Award: Philip Leverhulme Research Leadership Award,
Natural Environment Research Council (NERC), grant/award no. NE/K003674/1: Reducing the uncertainty in estimates of the sea level contribution from the westernmost part of the East Antarctic Ice Sheet
Coverage:
Latitude: -74.569000 * Longitude: -11.250330
Date/Time Start: 2014-12-01T00:00:00 * Date/Time End: 2014-12-01T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Depth, deposit | Depth deposit | m | McClymont, Erin L | ||
| 2 | Laboratory code/label | Lab label | McClymont, Erin L | AMD, # = Bayesian P-Sequence model applies single age to paired date due to R_Combine function in OxCal | ||
| 3 | Age, dated | Age dated | ka | McClymont, Erin L | Age, AMS 14C conventional | C14 ka BP |
| 4 | Age, dated, standard deviation | Age dated std dev | ± | McClymont, Erin L | Age, AMS 14C conventional | |
| 5 | Fraction modern carbon | F14C | McClymont, Erin L | |||
| 6 | Calendar age, median | Cal age median | ka BP | McClymont, Erin L | Age, 14C calibrated, Bayesian model, rbacon | |
| 7 | Calendar age, minimum/young | Cal age min | ka BP | McClymont, Erin L | Age, 14C calibrated, Bayesian model, rbacon | |
| 8 | Calendar age, maximum/old | Cal age max | ka BP | McClymont, Erin L | Age, 14C calibrated, Bayesian model, rbacon |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
96 data points
Data
| 1 Depth deposit [m] | 2 Lab label | 3 Age dated [ka] | 4 Age dated std dev [±] | 5 F14C | 6 Cal age median [ka BP] | 7 Cal age min [ka BP] | 8 Cal age max [ka BP] |
|---|---|---|---|---|---|---|---|
| 0.000 | Beta - 679228 | 2.510 | 0.030 | 0.7316 | 1.255 | 1.420 | 1.060 |
| 0.010 | Beta - 620905 | 3.520 | 0.030 | 0.6452 | 2.422 | 2.668 | 2.212 |
| 0.035 | Beta - 679229 | 4.630 | 0.030 | 0.5619 | 3.784 | 3.996 | 3.561 |
| 0.050 | #Beta - 620906 | 5.030 | 0.030 | 0.5346 | 4.239 | 4.420 | 4.054 |
| 0.050 | #UCIAMS-276896 | 4.958 | 0.035 | 0.5394 | 4.239 | 4.420 | 4.054 |
| 0.055 | Beta - 620907 | 4.990 | 0.030 | 0.5373 | 4.278 | 4.454 | 4.087 |
| 0.100 | Beta - 620908 | 5.520 | 0.030 | 0.5030 | 4.937 | 5.152 | 4.772 |
| 0.105 | #Beta - 620909 | 5.610 | 0.030 | 0.4974 | 4.987 | 5.203 | 4.822 |
| 0.105 | #UCIAMS-276897 | 5.491 | 0.035 | 0.5048 | 4.987 | 5.203 | 4.822 |
| 0.135 | Beta - 620910 | 5.910 | 0.030 | 0.4792 | 5.426 | 5.595 | 5.249 |
| 0.170 | Beta - 620911 | 6.720 | 0.030 | 0.4332 | 6.275 | 6.445 | 6.100 |
| 0.185 | Beta - 679230 | 6.840 | 0.030 | 0.4268 | 6.414 | 6.610 | 6.253 |