Pore-water nutrients, cations and DIC for sediment core SO268/2_185-1 (MUC-36) at a disturbed site after a small-scale dredge experiment during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean
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Zugriff:
This dataset comprises downcore measurements of pore-water nutrients, cations and DIC for sediment cores (MUC) retrieved from disturbed sites after a small-scale dredge experiment in the framework of the European collaborative JPI Oceans MiningImpact project onboard R/V SONNE cruise SO268 in 2019. The scientific work during cruise SO268 was part of the second phase of the MiningImpact project (Environmental impacts and risks of deep-sea mining) and is designed to assess the environmental impacts of deep-sea mining of polymetallic nodules in the Clarion-Clipperton Zone (CCZ) in the Pacific Ocean. The pore water was extracted onboard by rhizon sampling. Pore-water nutrient concentrations (nitrate, nitrite, ammonium, silicic acid, phosphate) were analyzed onboard on freshly extracted pore water upon 3-fold dilution or undiluted (ammonium) using a QuAAtro continous segmented flow analyzer (Seal Analytical). Major and minor elements were determined on acidified samples (25 µL double sub-boiling distilled concentrated HCl per 1 mL sample) using ICP-AES (iCAP 7400, Thermo Scientific) and DIC was determined on HgCl2-treated pore-water samples using a QuAAtro continous segmented flow analyzer (Seal Analytical) at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.
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Pore-water nutrients, cations and DIC for sediment core SO268/2_185-1 (MUC-36) at a disturbed site after a small-scale dredge experiment during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean
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Autor/in / Beteiligte Person: | Volz, Jessica B ; Lange, Mirko ; Koehler, Dennis ; Geibert, Walter ; Stimac, Ingrid ; Kasten, Sabine |
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Veröffentlichung: | PANGAEA |
Medientyp: | unknown |
DOI: | 10.1594/PANGAEA.944085 |
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