Lin, Tsai-Wen; Adolphi, Florian; Lachner, Johannes; Winkler, Stella (2026): Authigenic 10Be/9Be ratio from sediment core PS51/154-11, western Laptev Sea, Arctic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.996474
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Published: 2026-09-07 • DOI registered: 2026-09-07
Abstract:
Authigenic 10Be and 9Be concentrations were measured from sediment core PS51/154-11 to reconstruct downcore authigenic 10Be/9Be ratio variations during deglacial period, and constrain the local ΔR by comparing it with ice-core 10Be records. The core was stored at −20 °C and temporarily warmed to 4 °C for subsampling. Sediment samples were collected at 5–10 cm intervals using syringes, and were freeze-dried and homogenized before analyses. Based on the age-depth model from Lin et al. (2025), 38 sediment samples from the depth interval between 50.5 and 450.5 cm depth were selected, allowing reconstruction during the time interval between 15 and 10 kyr BP. Sample preparation and both 10Be and 9Be measurements were conducted at 2024. Sediments were leached following the procedure described in Gutjahr et al. (2007), and beryllium was purified and processed following the protocol from Loftfield et al. (2024). Authigenic 9Be concentrations were measured with an Inductively coupled plasma atomic emission spectroscopy (Thermo Fisher Scientific Inc., ICP-OES-iCAP7400) at the Alfred Wegener Institute (AWI), Bremerhaven, Germany. While authigenic 10Be concentrations were measured with an accelerator mass spectrometry (AMS) at the DREAMS (DREsden AMS) facility, Germany (Lachner et al., 2023).
Keyword(s):
Supplement to:
Lin, Tsai-Wen; Adolphi, Florian; Grotheer, Hendrik; Hefter, Jens; Tesi, Tommaso; Lachner, Johannes; Winkler, Stella; Wu, Junjie; Queiroz Alves, Eduardo; Mollenhauer, Gesine (preprint): Precisely dated records of pre-aged terrestrial organic matter release to the western Laptev Sea during the last deglaciation. Climate of the Past, https://doi.org/10.5194/egusphere-2026-4726
References:
Gutjahr, Marcus; Frank, Martin; Stirling, C H; Klemm, Veronika; van de Flierdt, Tina; Halliday, Alex N (2007): Reliable extraction of a deepwater trace metal isotope signal from Fe–Mn oxyhydroxide coatings of marine sediments. Chemical Geology, 242(3-4), 351-370, https://doi.org/10.1016/j.chemgeo.2007.03.021
Lachner, Johannes; Rugel, Georg; Vivo Vilches, Carlos; Koll, Dominik; Stübner, Konstanze; Winkler, Stephan; Wallner, Anton (2023): Optimization of 10Be measurements at the 6 MV AMS facility DREAMS. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 535, 29-33, https://doi.org/10.1016/j.nimb.2022.11.008
Lin, Tsai-Wen; Tesi, Tommaso; Hefter, Jens; Grotheer, Hendrik; Wollenburg, Jutta Erika; Adolphi, Florian; Bauch, Henning A; Nogarotto, Alessio; Müller, Juliane; Mollenhauer, Gesine (2025): Environmental controls of rapid terrestrial organic matter mobilization to the western Laptev Sea since the Last Deglaciation. Climate of the Past, 21(4), 753-772, https://doi.org/10.5194/cp-21-753-2025
Loftfield, Julia; Lachner, Johannes; Malter, Maylin; Stübner, Konstanze; Adolphi, Florian (2024): A simple method of purifying authigenic 10Be from sediments for AMS-analysis. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 547, 165179, https://doi.org/10.1016/j.nimb.2023.165179
Funding:
Helmholtz Association of German Research Centres (HGF), grant/award no. PIE-0018: German-Italian partnership project between AWI and CNR-ISP on Chronologies for Polar Paleoclimate Archives (PAIGE)
Coverage:
Latitude: 77.276000 * Longitude: 120.609833
Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00
Minimum DEPTH, sediment/rock: 0.505 m * Maximum DEPTH, sediment/rock: 4.505 m
Event(s):
PS51/154-11 * Latitude: 77.276000 * Longitude: 120.609833 * Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00 * Elevation: -270.0 m * Penetration: 7.8 m * Recovery: 6.74 m * Location: Laptev Sea * Campaign: ARK-XIV/1b (PS51 Transdrift-V) * Basis: Polarstern * Method/Device: Kasten corer (KAL) * Comment: 7 core sections: 0.03-0.9, 0.9-1.91, 1.91-2.91, 2.91-3.91, 3.91-4.91, 4.91-5.91, 5.91-6.74 m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Lin, Tsai-Wen | Geocode | |
| 2 | Beryllium-9 | 9Be | atoms/g | Lin, Tsai-Wen | Inductively coupled plasma-optical emission spectrophotometry (ICP-OES) | |
| 3 | Beryllium-9, uncertainty, relative | 9Be unc rel | % | Lin, Tsai-Wen | ||
| 4 | Beryllium-10 | 10Be | atoms/g | Lin, Tsai-Wen | Accelerator mass spectrometry (AMS) | |
| 5 | Beryllium-10, uncertainty, relative | 10Be unc rel | % | Lin, Tsai-Wen | ||
| 6 | Beryllium-10/Beryllium-9 ratio | 10Be/9Be | Lin, Tsai-Wen | |||
| 7 | Beryllium-10/Beryllium-9 ratio, uncertainty, relative | 10Be/9Be unc rel | % | Lin, Tsai-Wen | ||
| 8 | Beryllium-10/Beryllium-9 ratio | 10Be/9Be | Lin, Tsai-Wen | |||
| 9 | Beryllium-10/Beryllium-9 ratio, uncertainty | 10Be/9Be unc | ± | Lin, Tsai-Wen |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
304 data points