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Ehlert von Ahn, Cátia Milene; Böttcher, Michael Ernst; Dellwig, Olaf; Schmiedinger, Iris; Scholten, Jan Christoph (2022): Geochemistry of sediments from Wismar Bay (Germany), southern Baltic Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.943750, In: Ehlert von Ahn, CM et al. (2022): Geochemistry of pore water and sediments from Wismar Bay (Germany), southern Baltic Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.944275

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Abstract:
Short sediment cores were taken at six stations in Wismar Bay, southern Baltic Sea (Germany) in May 2019 using a Rumohr-Lot device. Our aim in this study was to investigate the role of diagenetic element fluxes and different fresh water sources, including submarine groundwater discharge, on the water column in the bay. Porewaters were extracted from the sediment cores by applying the rhizon technique at a resolution between 2 and 5 cm. The porewaters were analyzed for major and trace metals and selected nutrients using a ICP-OES (iCAP, 7400, Duo Thermo Fischer Scientific), total sulphide by a Specord 40 spectrophotometer (Analytik Jena), dissolved inorganic carbon (DIC) and δ13CDIC using an isotope gas mass spectrometre (MAT 253) coupled to a Gasbench II, and δ18OH2O, and δ2HH2O using a CRDS system (laser cavity-ring-down-spectroscopy, Picarro L2140- I). Sediment cores were further sliced at 2 to 4 cm resolution and each freeze-dried solid subsample was analyzed for contents of total carbon, nitrogen, and sulphur using an Elemental Analyzer (Euro Vector EuroEA 3, 052), inorganic carbon using an Elemental Analyzer multi EA (Analytik Jena), total mercury by a DMA-80 analyzer, and HCl-extractable Pb, Mn and Fe using an ICP-OES (iCAP, 7400, Duo Thermo Fischer Scientific).
Keyword(s):
southern Baltic Sea; Stable isotope; submarine groundwate discharge
Related to:
Ehlert von Ahn, Cátia Milene; Scholten, Jan Christoph; Malik, Christoph; Feldens, Peter; Liu, Bo; Dellwig, Olaf; Jenner, Anna-Kathrina; Papenmeier, Svenja; Schmiedinger, Iris; Zeller, Mary A; Böttcher, Michael Ernst (2021): A Multi-Tracer Study of Fresh Water Sources for a Temperate Urbanized Coastal Bay (Southern Baltic Sea). Frontiers in Environmental Science, 9, https://doi.org/10.3389/fenvs.2021.642346
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0771B: Bonus Seamount
German Academic Exchange Service (DAAD), grant/award no. 57381412: DAAD_Phd scholarship
German Science Foundation (DFG), grant/award no. 240942083: DFG Research Training Group Baltic TRANSCOAST
German Science Foundation (DFG), grant/award no. MA7041/6-1: DFG supported KiSNet project
Seventh Framework Programme (FP7), grant/award no. PCIG09-GA-2011-293499: Marie Curie Career Integration Grant
Coverage:
Median Latitude: 53.970543 * Median Longitude: 11.322797 * South-bound Latitude: 53.948050 * West-bound Longitude: 11.230067 * North-bound Latitude: 54.011817 * East-bound Longitude: 11.402200
Date/Time Start: 2019-05-21T00:00:00 * Date/Time End: 2019-05-23T00:00:00
Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.55 m
Event(s):
WB_Site-2_RL * Latitude: 54.011817 * Longitude: 11.230067 * Date/Time: 2019-05-21T00:00:00 * Method/Device: Rumohr-Lot (RL)
WB_Site-10_RL * Latitude: 53.962517 * Longitude: 11.296650 * Date/Time: 2019-05-21T00:00:00 * Method/Device: Rumohr-Lot (RL)
WB_Site-11_RL * Latitude: 53.964833 * Longitude: 11.366233 * Date/Time: 2019-05-22T00:00:00 * Method/Device: Rumohr-Lot (RL)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1NitrogenN%Böttcher, Michael ErnstElemental analyzerwt.; Elemental Analyzer (Euro Vector EuroEA 3,052)
2Event labelEventBöttcher, Michael Ernst
3LATITUDELatitudeBöttcher, Michael ErnstGeocode
4LONGITUDELongitudeBöttcher, Michael ErnstGeocode
5DATE/TIMEDate/TimeBöttcher, Michael ErnstGeocode
6DEPTH, sediment/rockDepth sedmBöttcher, Michael ErnstGeocode
7TypeTypeBöttcher, Michael Ernst
8Depth, top/minDepth topmBöttcher, Michael Ernst
9Depth, bottom/maxDepth botmBöttcher, Michael Ernst
10Water content, sedimentWater sed%Böttcher, Michael Ernst
11Carbon, organic, totalTOC%Böttcher, Michael ErnstElemental analyzerwt.; Elemental Analyzer (Euro Vector EuroEA 3,052)
12NitrogenN%Böttcher, Michael ErnstElemental analyzerwt.; Elemental Analyzer (Euro Vector EuroEA 3,052)
13SulfurS%Böttcher, Michael ErnstElemental analyzerwt.; Elemental Analyzer (Euro Vector EuroEA 3,052)
14Carbon, inorganic, totalTIC%Böttcher, Michael ErnstElemental analyzerwt.; Elemental Analyzer multi-E-A (Analitik Jena)
15MercuryHgmg/kgBöttcher, Michael ErnstDirect Mercury Analyser DMA (Milestone Instruments)DMA-80 analyzer
16IronFemg/kgBöttcher, Michael ErnstICP-OES, Thermo Fisher iCAP 7400ICP-OES ( iCAP, 7400, Duo Thermo Fischer Scientific) after acid extraction
17LeadPbmg/kgBöttcher, Michael ErnstICP-OES, Thermo Fisher iCAP 7400ICP-OES ( iCAP, 7400, Duo Thermo Fischer Scientific) after acid extraction
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
662 data points

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