Iron-controlled oxidative sulfur cycling recorded in the distribution and isotopic composition of sulfur species in glacially influenced fjord sediments of west Svalbard

• Published in: Chemical Geology
• Main Authors: Wehrmann, Laura M., Riedinger, Natascha, Brunner, Benjamin, Kamyshny, Alexey, Hubert, Casey R. J., Herbert, Lisa C., Bruechert, Volker, Jorgensen, Bo Barker, Ferdelman, Timothy G., Formolo, Michael J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2017
• Subjects: Sediment biogeochemistry; Oxidative sulfur cycling; Arctic fjords; Sulfur and oxygen isotopes; Iron geochemistry; BACTERIAL SULFATE REDUCTION; ARCTIC MARINE-SEDIMENTS; ORGANIC-MATTER; ELEMENTAL SULFUR; OXYGEN-ISOTOPE; PYRITE FORMATION; REDUCING BACTERIA; SULFIDE OXIDATION; STABLE SULFUR; DISSIMILATORY SULFATE; Arctic; Smeerenburgfjorden; Svalbard; Van Mijenfjorden; Kongsfjord*; Kongsfjorden; Smeerenburgfjord*
• Online Access: https://pure.au.dk/portal/en/publications/fc94f00b-189a-4fab-abc8-9924c8434876; https://doi.org/10.1016/j.chemgeo.2017.06.013

This study investigates how glacially delivered reactive iron (oxyhydr) oxide and manganese oxide phases influence the biogeochemical cycling of sulfur in sediments of three Arctic fjords and how the biogeochemical signatures of these processes are preserved. Results reveal differences in the concen...