Quartz Weathering in Freeze-Thaw Cycles; Experiment and Application to Elgygytgyn Crater Lake Record for Tracing Siberian Permafrost History

• Main Authors: Schwamborn, Georg, Diekmann, Bernhard, Schirrmeister, Lutz, Foerster, A.
• Format: Conference Object
• Language: unknown
• Published: 2010
• Subjects: Arctic; Crater Lake; Chukotka; Ice; permafrost; Siberia
• Online Access: https://epic.awi.de/id/eprint/22793/; https://hdl.handle.net/10013/epic.35488

Brittle and fragile sand and silt is produced in near surface frozen ground. It makes up much of the re-golith in permafrost areas such as Arctic Siberia. Microscopical grain features (e.g. angular outlines, surficial microcracks) illustrate grooves of cryogenic destruction in the course of numerous...