Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Lange Mirko mirko.lange@awi.de Koehler Dennis dennis.koehler@awi.de Geibert Walter walter.geibert@awi.de http://www.awi.de/ueber-uns/organisation/mitarbeiter/walter-geibert.html 0000-0001-8646-2334 Stimac Ingrid Ingrid.Stimac@awi.de 0000-0001-6053-2330 Kasten Sabine sabine.kasten@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sabine-kasten.html 0000-0001-7453-5137 2026 Pore-water nutrients, cations and DIC for sediment core SO268/2_198-1 (MUC-38) at a disturbed site after a small-scale dredge experiment during RV SONNE cruise SO268/2 in the CCZ, Pacific Ocean dataset https://doi.org/10.1594/PANGAEA.944098 2026-02-28T00:03:13 https://doi.org/10.1594/PANGAEA.954917 This dataset comprises downcore measurements of pore-water nutrients, cations and DIC for sediment cores (MUC) 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. -117.0119167 -117.0119167 11.86271667 11.86271667 -117.0119167 11.86271667 2019-05-15T05:28:36 2019-05-15T05:28:36 0.0 0.16 vertical profile JPIO-MiningImpact JPI Oceans - Ecological Aspects of Deep-Sea Mining https://miningimpact.geomar.de GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 AWI_MarGeoChem Marine Geochemistry @ AWI https://www.awi.de/en/science/geosciences/marine-geochemistry.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Federal Ministry of Education and Research BMBF https://www.bmftr.bund.de https://doi.org/10.13039/501100002347 03F0812F JPI-O MiningImpact: Auswirkungen von Manganknollenbergbau auf biogeochemische Prozesse und die Ausbreitung von Stoffen in der Tiefsee https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03F0812F SO268/2_198-1 MUC-38 11.86271667 -117.0119167 Clarion-Clipperton Fraction Zone, North East Pacific Ocean -4145.5 2019-05-15T05:28:36 SO268/2 SO268/2 Manzanillo, Mexico 2019-03-30T00:00:00 2019-03-30 Vancouver, Canada 2019-05-27T00:00:00 2019-05-27 Sonne_2 https://uol.de/icbm/forschungsplattformen-schiffe/sonne DBBE 9633927 Haeckel, Matthias Haeckel, Matthias doi:10.3289/GEOMAR_REP_NS_59_20 20190057 https://www.ldf.uni-hamburg.de/sonne/wochenberichte/wochenberichte-sonne/so267-2-268-3/expeditionsheft-so-267-2-268-3.pdf https://maps.geomar.de/mapgen_ds/maps/legMap?lang=en&render=true&leg=SO268/2 Sonne_2 https://uol.de/icbm/forschungsplattformen-schiffe/sonne DBBE 9633927 Multicorer with television TVMUC GER Dredge; Position USBL; TV-MUC 457 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Station label Station Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Station Area/locality Area Area http://dbpedia.org/resource/Area Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Area Core Core Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Core DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Depth sed [m] Aluminium Al µmol/l aluminium Al Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Al [µmol/l] Aluminium, error Al e ± aluminium Al ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Al e [±] Arsenic As µmol/l arsenic Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 As [µmol/l] Barium Ba µmol/l barium Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Ba [µmol/l] Calcium Ca µmol/l calcium Ca https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22984 Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Ca [µmol/l] Calcium, error Ca e ± calcium Ca https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22984 ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Ca e [±] Copper Cu µmol/l copper Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Cu [µmol/l] Iron Fe µmol/l Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Fe [µmol/l] Potassium K µmol/l potassium K Abundance or Count ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 K [µmol/l] Potassium, error K e ± potassium K ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 K e [±] Magnesium Mg µmol/l magnesium Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Mg [µmol/l] Magnesium, error Mg e ± magnesium ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Mg e [±] Manganese Mn µmol/l manganese Mn https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18291 Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Mn [µmol/l] Phosphorus P µmol/l phosphorus Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 P [µmol/l] Phosphorus, error P e ± phosphorus ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 P e [±] Silicon Si µmol/l silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Si [µmol/l] Silicon, error Si e ± silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Si e [±] Strontium Sr µmol/l strontium Molar Concentration ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Sr [µmol/l] Strontium, error Sr e ± strontium ICP-AES, Thermo Scientific, iCAP 7400 Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Sr e [±] Carbon, inorganic, dissolved DIC mmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 DIC [mmol/l] Carbon, inorganic, dissolved, error, relative DIC e rel % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 DIC e rel [%] Nitrate [NO3]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NO3]- [µmol/l] Nitrate, error, relative [NO3]- e rel % nitrate http://purl.obolibrary.org/obo/CHEBI_17632 relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NO3]- e rel [%] Nitrite [NO2]- µmol/l nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NO2]- [µmol/l] Nitrite, error, relative [NO2]- e rel % nitrite http://purl.obolibrary.org/obo/CHEBI_16301 relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NO2]- e rel [%] Ammonium [NH4]+ µmol/l ammonium http://purl.obolibrary.org/obo/CHEBI_28938 Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NH4]+ [µmol/l] Ammonium, error, relative [NH4]+ e rel % ammonium http://purl.obolibrary.org/obo/CHEBI_28938 relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [NH4]+ e rel [%] Silicate Si(OH)4 µmol/l Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Si(OH)4 [µmol/l] Silicate, error, relative Si(OH)4 e rel % relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 Si(OH)4 e rel [%] Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [PO4]3- [µmol/l] Phosphate, error, relative [PO4]3- e rel % phosphate http://purl.obolibrary.org/obo/CHEBI_26020 relative Dimensionless Ratio ψ SEAL Analytical, continuous flow analyser QuAAtro Volz Jessica B jessica.volz@awi.de 0000-0002-7825-2174 [PO4]3- e rel [%] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Anthropogenic disturbances Clarion Clipperton Fracture Zone deep sea mining deep sea sediment Geochemical data author10649 author34470 author61745 author66739 author671 author83967 award352 basis5064 campaign3390190 campaign46192 curlevel30 event2913335 funder20473 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst20147 inst32 license21 method11340 method13107 method14507 param102005 param105290 param105291 param106858 param15060 param15373 param180076 param186945 param1874 param48492 param49320 param501907 param505286 param505288 param505295 param505298 param505304 param510644 param510645 param510646 param510647 param510648 param510649 param52 param62 param63 param64 param66 param722 param755 param756 param757 param758 param92377 pi66739 project4206 project4275 term1073131 term1073173 term1073482 term1073483 term1073484 term1073493 term26027 term28162 term38263 term38477 term38478 term38520 term38521 term39985 term40134 term40136 term40561 term40663 term40665 term40847 term40966 term41056 term42421 term43770 term43794 term43863 term44025 term44030 term49772 term51350 term54071 term67507 term69997 term77594 topotype3