Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS75/054-1
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| Autori principali: | , , , , , , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2026
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| _version_ | 1867171341312983040 |
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| author | Loftfield, Julia Nowaczyk, Norbert R Lembke-Jene, Lester Frederichs, Thomas Lachner, Johannes Lamy, Frank Rugel, Georg Stübner, Konstanze Adolphi, Florian |
| author_facet | Loftfield, Julia Nowaczyk, Norbert R Lembke-Jene, Lester Frederichs, Thomas Lachner, Johannes Lamy, Frank Rugel, Georg Stübner, Konstanze Adolphi, Florian |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Core PS75/054-1 (subantarctic Pacific) was taken via piston corer during RV Polarstern cruise ANT-XXVI/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 (1.80 m – 8.30 m). For Be measurements 0.5 – 1.0 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). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_980573 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS75/054-1 Loftfield, Julia Nowaczyk, Norbert R Lembke-Jene, Lester Frederichs, Thomas Lachner, Johannes Lamy, Frank Rugel, Georg Stübner, Konstanze Adolphi, Florian 10Be; 9Be; Accelerator mass spectrometry (AMS); AGE; Age model; ANT-XXVI/2; Authigenic Beryllium; Beryllium; Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9 ratio; Beryllium-10/Beryllium-9 ratio, standard deviation; Beryllium-9; Beryllium-9, standard deviation; Calculated; DEPTH, sediment/rock; Drake Passage; Inductively Coupled Plasma Optical Emission Spectroscopy, Thermo Fisher Inc., ICP-OES-iCAP7400; KL; Laschamps Excursion; Mono Lake Excursion; paleomagnetism; Piston corer (BGR type); Polarstern; PS75/054-1; PS75 BIPOMAC; Scotia Sea; South Pacific; South Pacific Ocean Core PS75/054-1 (subantarctic Pacific) was taken via piston corer during RV Polarstern cruise ANT-XXVI/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 (1.80 m – 8.30 m). For Be measurements 0.5 – 1.0 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). |
| title | Authigenic beryllium concentrations and ratios (10Be/9Be) of sediment core PS75/054-1 |
| topic | 10Be; 9Be; Accelerator mass spectrometry (AMS); AGE; Age model; ANT-XXVI/2; Authigenic Beryllium; Beryllium; Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9 ratio; Beryllium-10/Beryllium-9 ratio, standard deviation; Beryllium-9; Beryllium-9, standard deviation; Calculated; DEPTH, sediment/rock; Drake Passage; Inductively Coupled Plasma Optical Emission Spectroscopy, Thermo Fisher Inc., ICP-OES-iCAP7400; KL; Laschamps Excursion; Mono Lake Excursion; paleomagnetism; Piston corer (BGR type); Polarstern; PS75/054-1; PS75 BIPOMAC; Scotia Sea; South Pacific; South Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.980573 |