Reconstructing Permafrost Sedimentological Characteristics and Post-depositional Processes of the Yedoma Stratotype Duvanny Yar, Siberia

• Published in: Frontiers in Earth Science
• Main Authors: Denis Shmelev, Maria Cherbunina, Victor Rogov, Sophie Opfergelt, Arthur Monhonval, Jens Strauss
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2021
• Subjects: cryogenic weathering; Kolyma lowland; Arctic; permafrost; late Pleistocene; Holocene; Science; Q; Kolyma; Yar; Ice; Siberia
• Online Access: https://doi.org/10.3389/feart.2021.727315; https://doaj.org/article/b064548e600f4513858084694b98d470

Cryogenic weathering is a key driver of periglacial sediment composition and properties. Selective mineral-grain weathering caused by freeze-thaw cycles in permafrost environments has the ability to dominate this process, leading to silt-rich grain-size distributions. The cryogenic weathering index...