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Paleoclimatology (thesaurus)

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cryoturbation  

Definition

  • In gelisols (permafrost soils), cryoturbation (frost churning) refers to the mixing of materials from various horizons of the soil down to the bedrock due to freezing and thawing. Cryoturbation occurs to varying degrees in most gelisols. The cause of cryoturbation lies in the way in which the repeated freezing of the soil during autumn causes the formation of ice wedges at the most easily erodible parts of the parent rock. (Adapted from: https://en.wikipedia.org/wiki/Cryoturbation)

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http://data.loterre.fr/ark:/67375/QX8-3C8RT6M8-3

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