Iron Dynamics during Thermokarst Processes in the Yedoma Domain and Implications for Interactions between Iron and Organic Carbon

• Main Authors: Monhonval, Arthur, Opfergelt, Sophie, Mauclet, Elisabeth, Hirst, Catherine, Pereira, Benoît, Vandeuren, Aubry, Bemelmans, Nathan, Grosse Guido, Schirrmeister Lutz, Fuchs Matthias, AGU FALL MEETING
• Other Authors: UCL - SST/ELI/ELIE - Environmental Sciences
• Format: Conference Object
• Language: English
• Published: 2020
• Subjects: iron dynamics; thermokarst processes; Yedoma domain; organic carbon; Alaska; Laptev Sea; Kolyma; New Siberian Islands; Ice; laptev; permafrost; Thermokarst; Siberia
• Online Access: http://hdl.handle.net/2078.1/239965

Iron (Fe) plays a key role in mediating organic carbon (OC) decomposition rates in permafrost soils. Fe-bearing minerals stabilize OC through complexation, co-precipitation or aggregation processes and thus hinder degradation of OC. In addition, Fe(III) reduction can inhibit methanogenesis and decre...