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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2022
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.947019 |
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| _version_ | 1867168217216057344 |
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| author | Struve, Torben Longman, Jack Zander, Martin Lamy, Frank Winckler, Gisela Pahnke, Katharina |
| author_facet | Struve, Torben Longman, Jack Zander, Martin Lamy, Frank Winckler, Gisela Pahnke, Katharina |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset contains the source apportionment results for the dust fraction (<5 µm size fraction) of sediment core PS75/056-1 from the South Pacific Subantarctic Zone (55.16°S, 114.78°W; 3581 m water depth) collected during R/V Polarstern expedition ANT-XXVI/2 (PS75 BIPOMAC) in 11/2009-01/2010 (Gersonde, 2011, doi:10.2312/BzPM_0632_2011). The original lithogenic dust provenance signal was extracted from a total of 108 samples (incl. 13 full replicates) between 0.03 and 9.93 m core depth covering the period from ~8,000 to ~260,000 years before present. The age model is from van der Does et al. (2021, doi:10.1016/j.quascirev.2021.106978). The source apportionment was calculated using PS75/056-1 dust fraction radiogenic isotope compositions (doi:10.1594/PANGAEA.947018) and the Bayesian mixing model MixSIAR (Longman et al, 2018, doi:10.1038/s41598-018-24474-0; Stock et al., 2018, doi:10.7717/peerj.5096). Mean values of dust grain size reported together with the source apportionment results were previously published by van der Does et al. (2021, doi:10.1016/j.quascirev.2021.106978)). Iron (Fe) and Fe(II) flux data for PS75/056-1 (Shoenfelt et al., 2018, doi:10.1073/pnas.1809755115) were interpolated linearly to obtain values for the depths sampled for dust provenance work. The source-specific fluxes were calculated based on the relative contributions of the individual dust source regions to the total Fe input. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_947019 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Source apportionment results for <5 μm size fraction sediments of core PS75/056-1 Struve, Torben Longman, Jack Zander, Martin Lamy, Frank Winckler, Gisela Pahnke, Katharina Adopted from van der Does et al. (2021); AGE; ANT-XXVI/2; Calculated; Comment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dust, aeolian; Dust provenance; Grain size, mean; Gravity corer (Kiel type); interpolated; Iron, flux; Iron fluxes; Iron II, flux; Polarstern; PS75/056-1; PS75 BIPOMAC; Radiogenic isotopes; Rare earth elemets; Sample comment; Sample ID; SL; Southern Hemisphere Westerly Winds; Southern Ocean; South Pacific Ocean This dataset contains the source apportionment results for the dust fraction (<5 µm size fraction) of sediment core PS75/056-1 from the South Pacific Subantarctic Zone (55.16°S, 114.78°W; 3581 m water depth) collected during R/V Polarstern expedition ANT-XXVI/2 (PS75 BIPOMAC) in 11/2009-01/2010 (Gersonde, 2011, doi:10.2312/BzPM_0632_2011). The original lithogenic dust provenance signal was extracted from a total of 108 samples (incl. 13 full replicates) between 0.03 and 9.93 m core depth covering the period from ~8,000 to ~260,000 years before present. The age model is from van der Does et al. (2021, doi:10.1016/j.quascirev.2021.106978). The source apportionment was calculated using PS75/056-1 dust fraction radiogenic isotope compositions (doi:10.1594/PANGAEA.947018) and the Bayesian mixing model MixSIAR (Longman et al, 2018, doi:10.1038/s41598-018-24474-0; Stock et al., 2018, doi:10.7717/peerj.5096). Mean values of dust grain size reported together with the source apportionment results were previously published by van der Does et al. (2021, doi:10.1016/j.quascirev.2021.106978)). Iron (Fe) and Fe(II) flux data for PS75/056-1 (Shoenfelt et al., 2018, doi:10.1073/pnas.1809755115) were interpolated linearly to obtain values for the depths sampled for dust provenance work. The source-specific fluxes were calculated based on the relative contributions of the individual dust source regions to the total Fe input. |
| title | Source apportionment results for <5 μm size fraction sediments of core PS75/056-1 |
| topic | Adopted from van der Does et al. (2021); AGE; ANT-XXVI/2; Calculated; Comment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dust, aeolian; Dust provenance; Grain size, mean; Gravity corer (Kiel type); interpolated; Iron, flux; Iron fluxes; Iron II, flux; Polarstern; PS75/056-1; PS75 BIPOMAC; Radiogenic isotopes; Rare earth elemets; Sample comment; Sample ID; SL; Southern Hemisphere Westerly Winds; Southern Ocean; South Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.947019 |