Zn and Pb isotope compositions and elemental ratios in marine particles from the South Pacific Ocean during SONNE cruise SO289 (GEOTRACES section GP21)

This dataset contains Zn and Pb isotope compositions (δ66Zn, 206Pb/207Pb, 208Pb/206Pb) and elemental ratios (Zn/P, Zn/Al, Zn/Mn, Pb/Al) in marine particles and aerosols (labile and refractory fractions) from the South Pacific Ocean samples collected during the SONNE cruise SO289 (GEOTRACES section GP21; February 23 - April 4, 2022). Seawater (6-8 L) was collected using trace metal clean Niskin bottles and subsequently filtered through 0.2 µm pore size filters to collect marine particles. Atmospheric aerosols (> PM 10) were collected using a high-volume aerosol collector for 48 – 72 hour intervals. Labile particulate phases in marine particles and aerosols were extracted using a mild acetic acid + hydroxylamine hydrochloride leach (Berger et al., 2008). Refractory particulate phases were digested using a HNO3-HF mixture (Al-Hashem et al., 2022). Samples were analyzed for elemental abundances using an Element XR high-resolution ICP-MS. Samples for Zn and Pb isotope analysis were purified by column chromatography (Bermin et al., 2006; Lugmair & Galer, 1992) and measured on a Neptune Plus multi-collector ICP-MS.