Baseline pore-water nutrients, cations and DIC for sediment core SO268/2_157-1 (GC-10) during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean

doi:doi:10.1594/PANGAEA.943943

Baseline pore-water nutrients, cations and DIC for sediment core SO268/2_157-1 (GC-10) during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean

This baseline dataset comprises downcore measurements of pore-water nutrients, cations and DIC for a sediment core (GC) retrieved 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 continuous 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 continuous segmented flow analyzer (Seal Analytical) at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.

BibTex:

@dataset{Volz_Jessica_B_and_Lange_Mirko_and_Koehler_Dennis_and_Geibert_Walter_and_Stimac_Ingrid_and_Kasten_Sabine_2024,
    abstract = {This baseline dataset comprises downcore measurements of pore-water nutrients, cations and DIC for a sediment core (GC) retrieved 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 continuous 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 continuous segmented flow analyzer (Seal Analytical) at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.},
    author = {Volz, Jessica B and Lange, Mirko and Koehler, Dennis and Geibert, Walter and Stimac, Ingrid and Kasten, Sabine},
    doi = {10.1594/PANGAEA.943943},
    institution = {PANGAEA (Paleontology)},
    keyword = {'Clarion Clipperton Fracture Zone', 'Geochemical data', 'deep sea mining', 'deep sea sediment'},
    month = {nov},
    title = {Baseline pore-water nutrients, cations and DIC for sediment core SO268/2_157-1 (GC-10) during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-943943},
    year = {2024}
}