Total organic carbon analysis of sediment core GeoB23812-25 form METEOR cruise M157, Namibian shelf

DOI

Solid phase total organic carbon (TOC) data form RV Meteor cruise M157 to the Namibian shelf, site GeoB23812-25, are presented here. Sediments were recovered using gravity coring. Both, depth in core (cm) and the corrected depth below seafloor (cm) are presented. Gravity core depth was adjusted to extend the paired multicore. The offset was determined visually, based on eight pore water constituent profiles.Total organic carbon (TOC) analysis in gravity core samples was performed at the Marum in Bremen. Therefore, 0.5g - 1g of dried sediment was decalcified by adding an excess amount of 10% HCl. Afterwards, the pH was raised to ph = 5 by adding distilled water, centrifuging and decanting. For the measurement 5mg freeze dried subsample was weighed into tin cups. Duplicate measurements were performed using a setup including a Flash EA 2000 Autosampler and Elemental Analyzer coupled to a Delta-V Plus Isotope Ratio Mass Spectrometer via ConFlo IV. TOC data from multi core samples were reported by (Chuang et al., 2022) and are included to complete the dataset.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.994128
Related Identifier IsPartOf https://doi.pangaea.de/10.1594/PANGAEA.995137
Related Identifier References https://doi.org/10.3389/fmars.2022.929913
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.994128
Provenance
Creator Kossack, Michael ORCID logo; Titschack, Jürgen ORCID logo; Anderson, Chloe H ORCID logo; Scholz, Florian ORCID logo; Zabel, Matthias ORCID logo
Publisher PANGAEA
Publication Year 2026
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 156 data points
Discipline Earth System Research
Spatial Coverage (13.866 LON, -22.999 LAT)