PANGAEA_996474 Authigenic 10Be/9Be ratio from sediment core PS51/154-11, western Laptev Sea, Arctic Ocean Lin, Tsai-Wen; Adolphi, Florian; Lachner, Johannes; Winkler, Stella Authigenic 10Be/9Be ratio from sediment core PS51/154-11, western Laptev Sea, Arctic Ocean 2026-09-07 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.996474 Investigator Tsai-Wen Lin tsai-wen.lin@awi.de Earth Science DEPTH, sediment/rock Beryllium-9 Beryllium-9, uncertainty, relative Beryllium-10 Beryllium-10, uncertainty, relative Beryllium-10/Beryllium-9 ratio Beryllium-10/Beryllium-9 ratio, uncertainty, relative Beryllium-10/Beryllium-9 ratio, uncertainty geoscientificInformation 10Be/9Be Arctic Ocean ARK-XIV/1b beryllium-10 beryllium-9 Kasten corer Laptev Sea Last deglaciation Marine Sediment Core PS51/154-11 Inductively coupled plasma-optical emission spectrophotometry (ICP-OES) Accelerator mass spectrometry (AMS) Polarstern 1998-08-16 1998-08-16 Complete 77.276 77.276 120.60983333333 120.60983333333 0.505 m (DEPTH, sediment/rock) 4.505 m (DEPTH, sediment/rock) unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 304 data points text/tab-separated-values 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 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

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). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996474"!

https://doi.org/10.1016/j.chemgeo.2007.03.021 Reliable extraction of a deepwater trace metal isotope signal from Fe–Mn oxyhydroxide coatings of marine sediments https://doi.org/10.1016/j.nimb.2022.11.008 Optimization of 10Be measurements at the 6 MV AMS facility DREAMS https://doi.org/10.1016/j.nimb.2023.165179 A simple method of purifying authigenic 10Be from sediments for AMS-analysis https://doi.org/10.17815/jlsrf-3-163 Polarstern https://doi.org/10.5194/cp-21-753-2025 Environmental controls of rapid terrestrial organic matter mobilization to the western Laptev Sea since the Last Deglaciation https://doi.org/10.5194/egusphere-2026-4726 Precisely dated records of pre-aged terrestrial organic matter release to the western Laptev Sea during the last deglaciation https://store.pangaea.de/Images/Cores/PS-stationcard/PS51_154-stationcard.pdf PS51/154-11 DIF 9.4 2026-09-07 2026-09-07