Loftfield, Julia; Nowaczyk, Norbert R; Lembke-Jene, Lester; Frederichs, Thomas; Lachner, Johannes; Lamy, Frank; Rugel, Georg; Stübner, Konstanze; Adolphi, Florian: Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS67/197-1 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.980590 (dataset in review), In: Loftfield, J et al.: 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:
Core PS67/197-1 (Scotia Sea),was taken via piston corer during RV Polarstern cruise ANT-XXII/4. 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 interval covering this period (8.51 m – 16.31 m). For Be measurements 1.5 – 3.0 g of freeze dried samples of the core 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).
Keyword(s):
Related to:
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
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
Funding:
Helmholtz Association of German Research Centres (HGF), grant/award no. VH-NG-1501: CLOC – Cosmic Links between Ocean sediments and Ice Cores
Coverage:
Latitude: -55.137300 * Longitude: -44.104700
Date/Time Start: 2005-04-23T18:25:00 * Date/Time End: 2005-04-23T18:25:00
Minimum DEPTH, sediment/rock: 8.51 m * Maximum DEPTH, sediment/rock: 16.31 m
Event(s):
PS67/197-1 * Latitude: -55.137300 * Longitude: -44.104700 * Date/Time: 2005-04-23T18:25:00 * Elevation: -3837.0 m * Recovery: 23.37 m * Location: Scotia Sea * Campaign: ANT-XXII/4 (PS67) * Basis: Polarstern * Method/Device: Piston corer (PC) * Comment: 25 core sections: 0-0.36, 0.36-1.32, 1.32-2.32, 2.32-3.32, 3.32-4.32, 4.32-5.32, 5.32-6.32, 6.32-7.32, 7.32-8.32, 8.32-9.32, 9.32-10.32, 10.32-11.32, 11.32-12.32, 12.32-13.32, 13.32-14.32, 14.32-15.32, 15.32-16.32, 16.32-17.32, 17.32-18.32, 18.32-19.32, 19.32-20.32, 20.32-21.32, 21.32-22.32, 22.32-23.32, 23.32-23.37 m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Loftfield, Julia | Geocode | |
| 2 | Beryllium-9 | 9Be | atoms/g | Loftfield, Julia | Inductively Coupled Plasma Optical Emission Spectroscopy, Thermo Fisher Inc., ICP-OES-iCAP7400 | authigenic |
| 3 | Beryllium-9, standard deviation | 9Be std dev | ± | Loftfield, Julia | Calculated | |
| 4 | Beryllium-10 | 10Be | atoms/g | Loftfield, Julia | Accelerator mass spectrometry (AMS) | authigenic |
| 5 | Beryllium-10, standard deviation | 10Be std dev | ± | Loftfield, Julia | Calculated | |
| 6 | Beryllium-10/Beryllium-9 ratio | 10Be/9Be | Loftfield, Julia | Calculated | authigenic | |
| 7 | Beryllium-10/Beryllium-9 ratio, standard deviation | 10Be/9Be std dev | ± | Loftfield, Julia | Calculated | |
| 8 | AGE | Age | ka BP | Loftfield, Julia | Geocode |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
426 data points