Loftfield, Julia; Nowaczyk, Norbert R; Lembke-Jene, Lester; Frederichs, Thomas; Lachner, Johannes; Lamy, Frank; Rugel, Georg; Stübner, Konstanze; Adolphi, Florian: Beryllium concentrations and ratios (10Be/9Be) of sediment cores PS67/197-1, PS75/054-1, and PS97/085-3 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.980486 (dataset in review)
Abstract:
We obtained high resolution records of authigenic 10Be/9Be ratios in order to study the different impacts on 10Be deposition in marine sediments compared to ice cores. As changes in the atmospheric production of cosmogenic 10Be leave a global fingerprint in 10Be deposition fluxes this represents a powerful tool for the synchronization of climate archives. During the Laschamps geomagnetic field low (~ 41 ka BP) the global production rate of 10Be is expected to double. We therefore chose the depth intervals covering this period (PS67/197-1 8.51 – 16.31 m; PS75/054-1 1.80 – 8.30 m; PS97/085-3 3.80 – 7.60 m). For Be measurements 0.5 – 3.0 g of freeze dried samples of the cores were leached (Gutjahr et al., 2007), purified (Loftfield et al., 2024), and measured via ICP-OES (9Be) and AMS (10Be; Lachner et al., 2023 and Rugel et al., 2016). High resolution paleo- and mineralmagnetic measurements were performed on the 2.37 m – 15.36 m (~ 27 – 82 ka BP) interval of PS75/054-1 in order to improve the age model of that core. The magnetic susceptibility and paleomagnetic measurements of PS67/197-1 and PS97/085-3 have been described and published by Xiao et al. (2016) and Wu et al. (2021), respectively. For age model construction the time scales of EDC and EDML were updated to AICC2023.
Keyword(s):
Related to:
Xiao, Wenshen; Frederichs, Thomas; Gersonde, Rainer; Esper, Oliver; Zhang, Xu (2025): Rock and paleomagneitc measurements of PS67/197-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.980093
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
Liu, Jiabo; Nowaczyk, Norbert R; Panovska, S; Korte, Monika; Arz, Helge Wolfgang (2020): The Norwegian‐Greenland Sea, the Laschamps, and the Mono Lake Excursions Recorded in a Black Sea Sedimentary Sequence Spanning From 68.9 to 14.5 ka. Journal of Geophysical Research: Solid Earth, 125(8), https://doi.org/10.1029/2019JB019225
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
Rugel, Georg; Pavetich, Stefan; Akhmadaliev, Shavkat; Enamorado Baez, Santiago Miguel; Scharf, Andreas; Ziegenrücker, René; Merchel, Silke (2016): The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 370, 94-100, https://doi.org/10.1016/j.nimb.2016.01.012
Wu, Shuzhuang; Lembke-Jene, Lester; Lamy, Frank; Arz, Helge Wolfgang; Nowaczyk, Norbert R; Xiao, Wenshen; Zhang, Xu; Hass, H Christian; Titschack, Jürgen; Zheng, Xufeng; Liu, Jiabo; Dumm, Levin; Diekmann, Bernhard; Nürnberg, Dirk; Tiedemann, Ralf; Kuhn, Gerhard (2021): Orbital- and millennial-scale Antarctic Circumpolar Current variability in Drake Passage over the past 140,000 years. Nature Communications, 12(1), https://doi.org/10.1038/s41467-021-24264-9
Xiao, Wenshen; Frederichs, Thomas; Gersonde, Rainer; Kuhn, Gerhard; Esper, Oliver; Zhang, Xu (2016): Constraining the dating of late Quaternary marine sediment records from the Scotia Sea (Southern Ocean). Quaternary Geochronology, 31, 97-118, https://doi.org/10.1016/j.quageo.2015.11.003
Funding:
Helmholtz Association of German Research Centres (HGF), grant/award no. VH-NG-1501: CLOC – Cosmic Links between Ocean sediments and Ice Cores
Coverage:
Median Latitude: -56.547850 * Median Longitude: -73.801633 * South-bound Latitude: -58.354500 * West-bound Longitude: -115.133030 * North-bound Latitude: -55.137300 * East-bound Longitude: -44.104700
Date/Time Start: 2005-04-23T18:25:00 * Date/Time End: 2016-03-16T17:45:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
6 datasets
Download Data (login required; moratorium until 2027-04-01)
Datasets listed in this bundled publication
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Age model of sediment core PS67/197-1. https://doi.pangaea.de/10.1594/PANGAEA.980566
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS67/197-1. https://doi.pangaea.de/10.1594/PANGAEA.980590
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Age model of sediment core PS75/054-1. https://doi.pangaea.de/10.1594/PANGAEA.980571
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS75/054-1. https://doi.pangaea.de/10.1594/PANGAEA.980573
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Age model of sediment core PS97/085-3. https://doi.pangaea.de/10.1594/PANGAEA.980572
- Loftfield, J; Nowaczyk, NR; Lembke-Jene, L et al. (in review): Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS97/085-3. https://doi.pangaea.de/10.1594/PANGAEA.980592