Publication Date:
2023-12-11
Description:
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.
Keywords:
Aluminium; Arsenic; Barium; Cadmium; Calcium/Sodium ratio; CDISK4-1; CDISK-IV; Chromium; Cobalt; Copper; Core; DEPTH, sediment/rock; Iron; Lead; Lithium/Sodium ratio; Magnesium/Calcium ratio; Magnesium/Sodium ratio; Manganese; Molybdenum; MUC; MultiCorer; Nickel; Nitrate and Nitrite; North Pacific Ocean; Porewater chemistry; Potassium/Sodium ratio; RV Kilo Moana; Sample code/label; sediment; Silicate; Standard deviation; Station label; Strontium/Calcium ratio; Strontium/Sodium ratio; Sulfur/Sodium ratio; Uranium; Vanadium; Zinc; δ44/40 Ca; δ44/40 Ca, standard deviation
Type:
Dataset
Format:
text/tab-separated-values, 1275 data points
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