Geochemistry and Weathering Indices of Yedoma and Alas Deposits beneath Thermokarst Lakes in Central Yakutia

• Published in: Frontiers in Earth Science
• Main Authors: Mathias Ulrich, Loeka L. Jongejans, Guido Grosse, Birgit Schneider, Thomas Opel, Sebastian Wetterich, Alexander N. Fedorov, Lutz Schirrmeister, Torben Windirsch, Julia Wiedmann, Jens Strauss
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2021
• Subjects: inorganic geochemistry characteristics; weathering indices; thermokarst landscapes; Siberia (Russia); environmental reconstruction; permafrost; Science; Q; Aldan; Ice; Thermokarst; Yakutia; Siberia
• Online Access: https://doi.org/10.3389/feart.2021.704141; https://doaj.org/article/392eceacb5f74e688fe1e88169c45b26

Ice- and organic-rich deposits of late Pleistocene age, known as Yedoma Ice Complex (IC), are widespread across large permafrost regions in Northeast Siberia. To reconstruct Yedoma IC formation in Central Yakutia, we analyzed the geochemistry, sedimentology, and stratigraphy of thawed and frozen dep...