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Volz, Jessica B; Lange, Mirko; Koehler, Dennis; Geibert, Walter; Stimac, Ingrid; Kasten, Sabine: Pore-water nutrients, cations and DIC for sediment core SO268/2_197-1_PUC-7 at a disturbed site after a small-scale dredge experiment during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.944123 (dataset in review), In: Volz, JB et al.: Pore-water nutrients, cations and DIC for sediment cores taken at disturbed sites after a small-scale dredge experiment during RV SONNE cruise SO268 in the CCZ, Pacific Ocean [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.954917 (dataset in review)

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Abstract:
This dataset comprises downcore measurements of pore-water nutrients, cations and DIC for sediment cores (ROV-operated PUC) retrieved from disturbed sites after a small-scale dredge experiment in the framework of the European collaborative JPI Oceans MiningImpact project onboard R/V SONNE cruise SO268 in 2019. The scientific work during cruise SO268 was part of the second phase of the MiningImpact project (Environmental impacts and risks of deep-sea mining) and is designed to assess the environmental impacts of deep-sea mining of polymetallic nodules in the Clarion-Clipperton Zone (CCZ) in the Pacific Ocean. The pore water was extracted onboard by rhizon sampling. Pore-water nutrient concentrations (nitrate, nitrite, ammonium, silicic acid, phosphate) were analyzed onboard on freshly extracted pore water upon 3-fold dilution or undiluted (ammonium) using a QuAAtro continous segmented flow analyzer (Seal Analytical). Major and minor elements were determined on acidified samples (25 µL double sub-boiling distilled concentrated HCl per 1 mL sample) using ICP-AES (iCAP 7400, Thermo Scientific) and DIC was determined on HgCl2-treated pore-water samples using a QuAAtro continous segmented flow analyzer (Seal Analytical) at the Marine Geochemistry Lab, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven.
Keyword(s):
Anthropogenic disturbances; Clarion Clipperton Fracture Zone; deep sea mining; deep sea sediment; Geochemical data
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0812F: JPI-O MiningImpact: Auswirkungen von Manganknollenbergbau auf biogeochemische Prozesse und die Ausbreitung von Stoffen in der Tiefsee
Coverage:
Latitude: 11.862968 * Longitude: -117.012741
Date/Time Start: 2019-05-14T23:25:44 * Date/Time End: 2019-05-14T23:25:44
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.16 m
Event(s):
SO268/2_197-1_PUC-7 * Latitude: 11.862968 * Longitude: -117.012741 * Date/Time: 2019-05-14T23:25:44 * Elevation: -4128.0 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: SO268/2 * Basis: Sonne_2 * Method/Device: Push corer (PUC) * Comment: taken 1 month after the dredge experiment, in sediment-covered dredge track
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Station labelStationVolz, Jessica B
2Area/localityAreaVolz, Jessica B
3CoreCoreVolz, Jessica B
4DEPTH, sediment/rockDepth sedmVolz, Jessica BGeocode
5AluminiumAlµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
6Aluminium, errorAl e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
7ArsenicAsµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
8BariumBaµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
9CalciumCaµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
10Calcium, errorCa e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
11CopperCuµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
12Copper, errorCu e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
13IronFeµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
14Iron, errorFe e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
15PotassiumKµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
16Potassium, errorK e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
17MagnesiumMgµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
18Magnesium, errorMg e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
19ManganeseMnµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
20PhosphorusPµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
21Phosphorus, errorP e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
22SulfurSµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
23Sulfur, errorS e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
24SiliconSiµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
25Silicon, errorSi e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
26StrontiumSrµmol/lVolz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
27Strontium, errorSr e±Volz, Jessica BICP-AES, Thermo Scientific, iCAP 7400
28Carbon, inorganic, dissolvedDICmmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
29Carbon, inorganic, dissolved, error, relativeDIC e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
30Nitrate[NO3]-µmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
31Nitrate, error, relative[NO3]- e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
32Nitrite[NO2]-µmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
33Nitrite, error, relative[NO2]- e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
34Ammonium[NH4]+µmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
35Ammonium, error, relative[NH4]+ e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
36SilicateSi(OH)4µmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
37Silicate, error, relativeSi(OH)4 e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
38Phosphate[PO4]3-µmol/lVolz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
39Phosphate, error, relative[PO4]3- e rel%Volz, Jessica BSEAL Analytical, continuous flow analyser QuAAtro
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
562 data points

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