Publication Date:
2024-02-26
Description:
This dataset comprises downcore measurements of the activity of different radionuclides for a sediment core (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. After performing total acid digestions, the sediments were analyzed by isotope dilution using ICP-SF-MS (Element2, Thermo Scientific) for the determination of radionuclides at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.
Keywords:
Anthropogenic disturbances; Area/locality; AWI_MarGeoChem; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Clarion Clipperton Fracture Zone; Core; deep sea mining; deep sea sediment; DEPTH, sediment/rock; Geochemical data; ICP-SF-MS, Thermo Scientific, Element 2; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Marine Geochemistry @ AWI; MUC-25; Multicorer with television; Salt-corrected; SO268/2; SO268/2_125-1; Sonne_2; Station label; Thorium-230; Thorium-230, error; Thorium-230, supported; Thorium-230 excess; Thorium-230 excess, error; Thorium-232; Thorium-232, error; TVMUC; Uranium-234; Uranium-234, error; Uranium-235; Uranium-235, error; Uranium-238; Uranium-238, error
Type:
Dataset
Format:
text/tab-separated-values, 435 data points
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