Baseline pore-water nutrients, cations and DIC for sediment cores taken during RV SONNE cruise SO268 in the CCZ, Pacific Ocean
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| Autores principales: | , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2026
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| _version_ | 1867172225302396928 |
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| author | Volz, Jessica B Lange, Mirko Koehler, Dennis Geibert, Walter Stimac, Ingrid Kasten, Sabine |
| author_facet | Volz, Jessica B Lange, Mirko Koehler, Dennis Geibert, Walter Stimac, Ingrid Kasten, Sabine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This baseline dataset comprises downcore measurements of pore-water nutrients, cations and DIC for sediment cores (GC, MUC, ROV-operated PUC) 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_954788 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Baseline pore-water nutrients, cations and DIC for sediment cores taken during RV SONNE cruise SO268 in the CCZ, Pacific Ocean Volz, Jessica B Lange, Mirko Koehler, Dennis Geibert, Walter Stimac, Ingrid Kasten, Sabine AWI_MarGeoChem; Clarion Clipperton Fracture Zone; deep sea mining; deep sea sediment; Geochemical data; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Marine Geochemistry @ AWI This baseline dataset comprises downcore measurements of pore-water nutrients, cations and DIC for sediment cores (GC, MUC, ROV-operated PUC) 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. |
| title | Baseline pore-water nutrients, cations and DIC for sediment cores taken during RV SONNE cruise SO268 in the CCZ, Pacific Ocean |
| topic | AWI_MarGeoChem; Clarion Clipperton Fracture Zone; deep sea mining; deep sea sediment; Geochemical data; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Marine Geochemistry @ AWI |
| url | https://doi.org/10.1594/PANGAEA.954788 |