Silicon Isotopes: A Tool to Capture Winter Biogeochemical Connectivity in Permafrost Soils (Stordalen, Sweden)

• Main Authors: Villani, Maëlle, Hirst, Catherine, Lundin, Erik, Giesler, Reiner, Mörth, Magnus, Opfergelt, Sophie, AGU Fall Meeting 2022
• Other Authors: UCL - SST/ELI/ELIE - Environmental Sciences
• Format: Conference Object
• Language: English
• Published: 2022
• Subjects: Permafrost; silicon isotopes; iron; carbon; taliks; connectivity; Stordalen; palsa; permafrost
• Online Access: http://hdl.handle.net/2078.1/268690

Silicon isotope fractionation upon amorphous silica precipitation is susceptible to freeze-thaw cycles. Here we make use of this characteristic to distinguish between a closed system in freezing soils: where silicic acid concentration is increasing, leading to amorphous silica precipitation that ind...