Gelifluction in the alpine periglacial environment of the Tianshan Mountains, China

Abstract Gelifluction in the periglacial zone of the Tianshan Mountains occurs at 2500‐3600 m above sea level on north‐facing slopes. Abundant groundwater, fine grained sediments and slopes 10°‐30° favour gelifluction. Most gelifluction forms are lobate, a few are tongue‐shaped. The mean surface rat...

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Bibliographic Details
Published in:Permafrost and Periglacial Processes
Main Authors: Gengnian, Liu, Heigang, Xiong, Zhijiu, Cui
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1995
Subjects:
Online Access:http://dx.doi.org/10.1002/ppp.3430060308
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430060308
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430060308
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Summary:Abstract Gelifluction in the periglacial zone of the Tianshan Mountains occurs at 2500‐3600 m above sea level on north‐facing slopes. Abundant groundwater, fine grained sediments and slopes 10°‐30° favour gelifluction. Most gelifluction forms are lobate, a few are tongue‐shaped. The mean surface rate of movement is 11.14cm/a; the front advancing rate is 1.86cm/a. The moving rate in the middle part is greater than at the sides of gelifluction lobes, the mean rates being 3.1 cm/a and 0.86cm/a, respectively.