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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2026
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.943939 |
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| _version_ | 1867168505789415424 |
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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 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_943939 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Baseline pore-water nutrients, cations and DIC for sediment core SO268/2_130-1 (GC-07) during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean Volz, Jessica B Lange, Mirko Koehler, Dennis Geibert, Walter Stimac, Ingrid Kasten, Sabine Aluminium; Aluminium, error; Ammonium; Ammonium, error, relative; Area/locality; Arsenic; Arsenic, error; AWI_MarGeoChem; Barium; Calcium; Calcium, error; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, error, relative; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Clarion Clipperton Fracture Zone; Copper; deep sea mining; deep sea sediment; DEPTH, sediment/rock; GC; GC-07; Geochemical data; Gravity corer; ICP-AES, Thermo Scientific, iCAP 7400; Iron; Iron, error; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Magnesium; Magnesium, error; Manganese; Manganese, error; Marine Geochemistry @ AWI; Nitrate; Nitrate, error, relative; Nitrite; Nitrite, error, relative; Phosphate; Phosphate, error, relative; Phosphorus; Phosphorus, error; Potassium; Potassium, error; SEAL Analytical, continuous flow analyser QuAAtro; Silicate; Silicate, error, relative; Silicon; Silicon, error; SO268/2; SO268/2_130-1; Sonne_2; Station label; Strontium; Strontium, error; Sulfur; Sulfur, error 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. |
| title | Baseline pore-water nutrients, cations and DIC for sediment core SO268/2_130-1 (GC-07) during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean |
| topic | Aluminium; Aluminium, error; Ammonium; Ammonium, error, relative; Area/locality; Arsenic; Arsenic, error; AWI_MarGeoChem; Barium; Calcium; Calcium, error; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, error, relative; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Clarion Clipperton Fracture Zone; Copper; deep sea mining; deep sea sediment; DEPTH, sediment/rock; GC; GC-07; Geochemical data; Gravity corer; ICP-AES, Thermo Scientific, iCAP 7400; Iron; Iron, error; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Magnesium; Magnesium, error; Manganese; Manganese, error; Marine Geochemistry @ AWI; Nitrate; Nitrate, error, relative; Nitrite; Nitrite, error, relative; Phosphate; Phosphate, error, relative; Phosphorus; Phosphorus, error; Potassium; Potassium, error; SEAL Analytical, continuous flow analyser QuAAtro; Silicate; Silicate, error, relative; Silicon; Silicon, error; SO268/2; SO268/2_130-1; Sonne_2; Station label; Strontium; Strontium, error; Sulfur; Sulfur, error |
| url | https://doi.org/10.1594/PANGAEA.943939 |