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Paul, Sophie Anna Luise; Koschinsky, Andrea: Trace metals in pore waters and bulk sediments from sediment cores during SONNE cruise SO268 in the central Pacific [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.990174 (dataset in review)

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Abstract:
We compare trace metal (Mn, Co, V, Mo, U, Cd, and As) cycling in the upper ca. 5 m of the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Zone in the Pacific Ocean. Considerable differences can be observed based on redox conditions, leading to Mn oxide dissolution of the solid phase as well as buried polymetallic nodules. Mobilization of metals to the pore water varies between the study sites, with especially high (up to 250 nmol/kg) dissolved Mo concentrations in parts of the German license area. 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 a gravity corer (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. Pore water samples were measured by inducitvely coupled Plasma mass spectrometry at Constructor University Bremen. Sediment samples from which the pore water had been extracted were freeze-dried and acid pressure digested using HF and HClO4 or HF, HNO3, and HCl for the nodules. Aluminum, Fe, Mn, and V were then analyzed in the digestion solutions with an inductively coupled plasma optical emission spectrometer and Ti, Co, and Mo with an inductively coupled plasma mass spectrometer at Constructor University Bremen.
Related to:
Paul, Sophie Anna Luise; Koschinsky, Andrea (2022): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/2_157-1 (GC-10) during SONNE cruise SO268/2, central Pacific [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.944338
Paul, Sophie Anna Luise; Schmidt, Katja; Koschinsky, Andrea (2022): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/1_37-1 (GC-02) during SONNE cruise SO268/1, central Pacific [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.944336
Project(s):
JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0812G: JPI-O MiningImpact: Großskaliger Umwelteinfluss eines Manganknollenkollektors auf den Spurenelementkreislauf und die Bildung und das Verhalten von Sediment-Plumes
Coverage:
Median Latitude: 13.299889 * Median Longitude: -122.674965 * South-bound Latitude: 11.845133 * West-bound Longitude: -125.924517 * North-bound Latitude: 14.135417 * East-bound Longitude: -117.012367
Date/Time Start: 2019-03-03T03:01:43 * Date/Time End: 2019-04-26T12:24:04
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
7 datasets

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Datasets listed in this publication series

  1. Paul, SAL; Koschinsky, A (in review): Bulk solid phase Al, Fe, Mn, V, Ti, Co, and Mo data from sediment cores during SONNE cruise SO268 in the central Pacific. https://doi.pangaea.de/10.1594/PANGAEA.990173
  2. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/1_16-1 (GC-01) during SONNE cruise SO268/1, central Pacific. https://doi.org/10.1594/PANGAEA.955636
  3. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/1_71-1 (GC-03) during SONNE cruise SO268/1, central Pacific. https://doi.org/10.1594/PANGAEA.955642
  4. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/1_78-1 (GC-04) during SONNE cruise SO268/1, central Pacific. https://doi.org/10.1594/PANGAEA.955663
  5. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/1_84-1 (GC-05) during SONNE cruise SO268/1, central Pacific. https://doi.org/10.1594/PANGAEA.955676
  6. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/2_104-1 (GC-06) during SONNE cruise SO268/2, central Pacific. https://doi.org/10.1594/PANGAEA.955689
  7. Paul, SAL; Koschinsky, A (2026): Dissolved and soluble pore water trace metals (Cd, U, V, Mn, Co, Cu, As, Mo) from sediment core SO268/2_144-1 (GC-09) during SONNE cruise SO268/2, central Pacific. https://doi.org/10.1594/PANGAEA.955690