Steiner, Zvi; Rae, James W B; Berelson, William M; Adkins, Jess F; Hou, Yi; Dong, Sijia; Lampronti, Gioliu I; Liu, Xuewu; Antler, Gilad; Subhas, Adam V; Achterberg, Eric Pieter; Turchyn, Alexandra V (2022): Porewater chemistry from sediment core CDISK4-2 from the North Pacific CDisK-IV expedition [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.947104, In: Steiner, Z et al. (2022): Porewater and sediment data from the North Pacific CDisK-IV expedition [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.946881
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Abstract:
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.
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. DFG 458035111: Biogeochemistry of major elements in the Atlantic and Pacific Oceans
National Science Foundation (NSF), grant/award no. OCE-1220600: Ocean Acidification - Collaborative Research: Measuring the kinetics of CaCO3 dissolution in seawater using novel isotope labeling, laboratory experiments, and in situ experiments
Coverage:
Latitude: 27.750000 * Longitude: -155.250000
Date/Time Start: 2017-08-07T00:00:00 * Date/Time End: 2017-08-07T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.320 m
Event(s):
CDISK4-2 * Latitude: 27.750000 * Longitude: -155.250000 * Date/Time: 2017-08-07T00:00:00 * Elevation: -5640.0 m * Campaign: CDISK-IV * Basis: RV Kilo Moana * Method/Device: MultiCorer (MUC)
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1479 data points