Porewater chemistry from sediment core CDISK4-5 from the North Pacific CDisK-IV expedition


Samples were collected at six oceanographic stations during cruise CDisK-IV on board RV Kilo Moana from Hawaii to Alaska in August 2017 using an 8-barrel multi-corer. Sediment porewaters were extracted in a cold room, using Rhizon samplers inserted into pre-drilled holes in the core liner, from two cores with undisturbed sediment-water interfaces, from each multi-corer cast. Pre-treatment of the Rhizon samplers and the sampling protocol was different for each of the two cores. Rhizons inserted to core number 1 from each cast were new from the box, and the samples were used for nutrient and major element analyses. A 20 ml syringe was filled from each Rhizon, inserted dry, and the extracted water was filtered again via a 0.45 µm filter. Rhizons inserted to core number 2 were acid-cleaned with 0.001 N HNO3 for at least 24 hours, rinsed with de-ionised water (Milli-Q, Millipore) and kept in de-ionised water until use. The first 1 mL extracted was discarded, and the next 2 mL were stored in acid cleaned polypropylene (PP) vials. These samples, destined for analyses of trace and major elements, were acidified with HNO3 to final acid concentration of 0.035 M.

DOI https://doi.org/10.1594/PANGAEA.947107
Related Identifier https://doi.org/10.1594/PANGAEA.946881
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.947107
Creator Steiner, Zvi ORCID logo; Rae, James W B ORCID logo; Berelson, William M; Adkins, Jess F ORCID logo; Hou, Yi ORCID logo; Dong, Sijia ORCID logo; Lampronti, Gioliu I; Liu, Xuewu; Antler, Gilad ORCID logo; Subhas, Adam V ORCID logo; Achterberg, Eric Pieter; Turchyn, Alexandra V ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID DFG 458035111 Biogeochemistry of major elements in the Atlantic and Pacific Oceans; European Commission https://doi.org/10.13039/501100000780 Crossref Funder ID ERC StG 307582 CARBONSINK; National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID OCE-1220600 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1220600 Ocean Acidification - Collaborative Research: Measuring the kinetics of CaCO3 dissolution in seawater using novel isotope labeling, laboratory experiments, and in situ experiments
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 1071 data points
Discipline Chemistry; Natural Sciences
Spatial Coverage (-149.600 LON, 49.670 LAT)