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Geochemistry of sediments from Fehmarn Belt area, southern Baltic Sea during cruise EMB238

The geochemical composition of surface sediments and pore waters from the Fehmarn Belt area, southern Baltic Sea, was analyzed in the context of the establishment of exclusion areas for bottom trawling activity. Samples were taken on cruise EMB238 in May/June 2020 using a multi corer or benthic lander device. Besides on-site measurements, further dissolved major and trace elements, dissolved inorganic carbon, nutrients were analyzed in home laboratory. Results are complemented by the analysis of potential microbial gross sulfate reduction rates and the geochemical composition of CNS and extractable sulfur (AVS, CrS(II), and acid-extractable Fe, Zn, Pb, Fe, Mn contents.

Geochemistry of pore waters from Fehmarn Belt area, southern Baltic Sea during cruise EMB238

The geochemical composition of surface sediments and pore waters from the Fehmarn Belt area, southern Baltic Sea, was analyzed in the context of the establishment of exclusion areas for bottom trawling activity. Samples were taken on cruise EMB238 in May/June 2020 using a multi corer or benthic lander device. Besides on-site measurements, further dissolved major and trace elements, dissolved inorganic carbon, nutrients were analyzed in home laboratory. Results are complemented by the analysis of potential microbial gross sulfate reduction rates and the geochemical composition of CNS and extractable sulfur (AVS, CrS(II), and acid-extractable Fe, Zn, Pb, Fe, Mn contents.

Microbial sulfate reduction rates in sediments from Fehmarn Belt area, southern Baltic Sea during cruise EMB238

The geochemical composition of surface sediments and pore waters from the Fehmarn Belt area, southern Baltic Sea, was analyzed in the context of the establishment of exclusion areas for bottom trawling activity. Samples were taken on cruise EMB238 in May/June 2020 using a multi corer or benthic lander device. Besides on-site measurements, further dissolved major and trace elements, dissolved inorganic carbon, nutrients were analyzed in home laboratory. Results are complemented by the analysis of potential microbial gross sulfate reduction rates and the geochemical composition of CNS and extractable sulfur (AVS, CrS(II), and acid-extractable Fe, Zn, Pb, Fe, Mn contents.

Geochemistry of pore waters and microbial sulfate reduction rates in sediments from Fehmarn Belt area, southern Baltic Sea during cruise EMB238

The geochemical composition of surface sediments and pore waters from the Fehmarn Belt area, southern Baltic Sea, was analyzed in the context of the establishment of exclusion areas for bottom trawling activity. Samples were taken on cruise EMB238 in May/June 2020 using a multi corer or benthic lander device. Besides on-site measurements, further dissolved major and trace elements, dissolved inorganic carbon, nutrients were analyzed in home laboratory. Results are complemented by the analysis of potential microbial gross sulfate reduction rates and the geochemical composition of CNS and extractable sulfur (AVS, CrS(II), and acid-extractable Fe, Zn, Pb, Fe, Mn contents.

Biogeochemical parameters in sediment cores from MSM 16/1 August 2010 Baltic Gas

The samples presented here were collected with the intent to understand methane cycling in the sediments of the Baltic Sea as part of the BALTIC GAS project funded by the European Community's Seventh Framework Programme (FP/2007-2013) under grant agreement n° 217246 made with the joint Baltic Sea Research and Development programme BONUS. Sediment cores from the Baltic Sea were collected and serve as events in this archive. The events took place in Mecklenburg Bay, Arkona Basin, Bornholm Basin, Gotland Basin, Bothnian Sea, and Bothnian Bay. Ninety events took place between July 31- August 15, 2010 aboard RV Maria S. Merian cruise MSM16/1. From the sediment cores, porewater was extracted and analyzed for sulfate, chloride, ammonium, major ions (barium, calcium, potassium, magnesium, sodium), hydrogen sulfide, and dissolved inorganic carbon concentrations. Dissolved inorganic carbon was also measured for stable carbon isotope ratios. Sediment plugs were collected for measuring concentrations and stable carbon isotope ratios of methane. Sulfate reduction rates were also measured on sediment cores. Bulk sediment was then analyzed for total organic carbon and nitrogen content, along with stable carbon and nitrogen ratios on total organic matter. Sediments were also measured for wet bulk density and water content of wet mass, from which porosity was calculated.

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