Sediment core and pore water data for AL557


Sediment cores and pore water cores were taken in the Skagerrak and North Sea with a multicorer on cruise AL557 (June 2021). The sediment cores were sliced onboard into 1 cm slices and frozen directly (-20°C). Pore water samples were taken with rhizon samplers (0.15 µm pore size, CSS; Rhizosphere, Netherlands) from intact sediment cores and frozen directly (-20°C). In the laboratory, the sediments were freeze-dried, sieved (<2mm) and milled. For organic carbon (after acidification) and total carbon and nitrogen contents, the samples were analyzed using an Euro EA 3000 (Euro Vector SPA) Elemental Analyzer, delta 15N was measured with a FlashEA 1112 elemental analyzer coupled to a MAT 252 (Thermo Fisher Scientific) isotope ratio mass spectrometer (; lab 3). For trace metal analysis, the sediments were digested with HBF4+HNO3+HCl ( and the pore water samples were acidified with HNO3 prior to 10-fold dilution with HNO3. Trace elements were measured by ICP-MS/MS (Agilent 8800, Agilent Technologies, Japan).

Metadata Access
Creator Siems, Anna; Metzke, Marc; Pröfrock, Daniel; Sanders, Tina ORCID logo; Zimmermann, Tristan ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Federal Ministry of Education and Research Crossref Funder ID 03F0847E DAM sustainMare - MGF North Sea, Hereon
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 5767 data points
Discipline Earth System Research
Spatial Coverage (2.501W, 53.202S, 9.501E, 58.500N); North Sea; Skagerrak
Temporal Coverage Begin 2021-06-04T11:02:00Z
Temporal Coverage End 2021-06-20T11:41:00Z