Dissolved and soluble pore water trace metals (Cd, U, V, Cu, As, Mo) from sediment core SO268/1_74-1 (MUC-17) during SONNE cruise SO268/1, central Pacific


Physical and chemical trace metal speciation are important for our understanding of metal cycling and potential toxicity to marine life. Trace metals can have different bioavailability and behave differently in diffusion processes or particle-solution interactions depending on their physical and chemical forms. Here we investigated dissolved (< 0.2 µm) and soluble ( 0.02 µm < 0.2 µm) of Cu increased with depth. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC), ROV push cores (PUC), and gravity corers (GC). Pore water was extracted by means of centrifugation and sequential filtration using cleaned polyethersulfone (PES) syringe filters (0.2 µm) and Anopore syringe filters (0.02 µm). Pore water was preserved by acidification to ~ pH 1.8 with concentrated ultrapure HCl. Samples were measured by Inductively Coupled Plasma-Mass Spectrometry.

DOI https://doi.org/10.1594/PANGAEA.944333
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.965035
Related Identifier References https://doi.org/10.1594/PANGAEA.929443
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.944333
Creator Paul, Sophie Anna Luise ORCID logo; Schmidt, Katja ORCID logo; Koschinsky, Andrea ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0812G https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0812G JPI-O MiningImpact: Großskaliger Umwelteinfluss eines Manganknollenkollektors auf den Spurenelementkreislauf und die Bildung und das Verhalten von Sediment-Plumes
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 556 data points
Discipline Earth System Research
Spatial Coverage (-125.864 LON, 14.135 LAT); Clarion-Clipperton Fraction Zone, North East Pacific Ocean