Source apportionment results for <5 μm size fraction sediments of core PS75/056-1 ...

• Main Authors: Struve, Torben, Longman, Jack, Zander, Martin, Lamy, Frank, Winckler, Gisela, Pahnke, Katharina
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Dust provenance; Iron fluxes; Radiogenic isotopes; Rare earth elemets; Southern Hemisphere Westerly Winds; Southern Ocean; Sample ID; Sample comment; Depth, top/min; Depth, bottom/max; DEPTH, sediment/rock; AGE; Dust, aeolian; Grain size, mean; Iron, flux; Iron II, flux; Comment; Gravity corer Kiel type; Adopted from van der Does et al. 2021; Calculated; interpolated; ANT-XXVI/2; Polarstern; Pacific
• Online Access: https://dx.doi.org/10.1594/pangaea.947019; https://doi.pangaea.de/10.1594/PANGAEA.947019

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 ...