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Bibliographic Details
Main Authors: Volz, Jessica B, Geibert, Walter, Koehler, Dennis, Rutgers van der Loeff, Michiel M, Kasten, Sabine
Format: Dataset Open Access
Language:en
Published: PANGAEA 2022
Subjects:
AWI_MarGeoChem; BC; BC20; BC28; BC31; BC9; Box corer; Clarion Clipperton Fracture Zone; Depth, bottom/max; Depth, top/min; Event label; isotope data; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; Lead-210; Lead-210, error; Marine Geochemistry @ AWI; North Pacific Ocean; polymetallic nodules; Protactinium-231; Protactinium-231, error; Radioactivity; Radium-226; Radium-226, error; Radon-222; Radon-222, error; Sample code/label; Sample mass; Sample type; SO239; SO239_119-1; SO239_180-1; SO239_195-1; SO239_60-1; SO239_88-1; Sonne_2; Thorium-230; Thorium-230, error; Time in seconds; Uranium-234; Uranium-234, error
Online Access:https://doi.org/10.1594/PANGAEA.951145
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Table of Contents:
  • This dataset comprises gamma spectrometric measurements of radioisotopes in samples from polymetallic nodules, which were collected in the framework of the European collaborative JPI Oceans MiningImpact project onboard R/V SONNE cruise SO239 in 2015. Samples were taken from different parts of the nodules (topside surface (s), bottom surface (b), interior (i)). The gamma radiation was measured in a Canberra well-type HPGe detector. Emission lines at 46 keV (Pb-210), 63 keV (U-234 via Th-234), 67 keV (Th-230), 186 keV (Ra-226 in absence of U-235 interference), 295 keV (Ra-226 via Rn-222) and 402 keV (Pa-231 via Rn-219 with some uncertainty on the intermediate Pa-231/Ac-227 equilibrium) were evaluated. The diluted uranium ore standard RGU-1 and the uranium ore standard UREM-11 served as calibration and reference, respectively.

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