Cyclic Development and Thermokarstic Degradation of Palsas in the Mid‐Alpine Zone at Leirpullan, Dovrefjell, Southern Norway

The palsas of Leirpullan are developed in deltaic sands and silts in the zone of alpine permafrost at an altitude of 1437 m (estimated mean annual air temperature −2.7°C). Five mounds that represent a chronosequence are analysed with particular reference to initiation, aggradation and degradation ph...

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Bibliographic Details
Main Authors: John A. Matthews, Svein‐Olaf Dahl, Mark S. Berrisford, Atle Nesje
Format: Article in Journal/Newspaper
Language:unknown
Subjects:
Online Access:https://doi.org/10.1002/(SICI)1099-1530(199701)8:13.0.CO;2-Z
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Summary:The palsas of Leirpullan are developed in deltaic sands and silts in the zone of alpine permafrost at an altitude of 1437 m (estimated mean annual air temperature −2.7°C). Five mounds that represent a chronosequence are analysed with particular reference to initiation, aggradation and degradation phases. It is inferred that geoecological factors control initial mound formation beneath areas of thin (