Article (Scientific journals)
Pingos and palsas: A review of the present state of knowledge
Pissart, Albert
1985In Polar Geography and Geology, 9 (3), p. 171-195
 

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Keywords :
perennial periglacial mounds; composition of pingos and palsas; freezing
Abstract :
[en] The article presents a summary of the present state of knowledge of perennial periglacial mounds, including descriptions of the external appearance and internal composition of pingos and palsas and a discussion of the genetic mechanisms. Pingos appear to be the result of the freezing of a mass of water trapped beneath permafrost under cryostatic or hydraulic pressure. Palsas are formed by the migration of groundwater to a freezing plane (cryosuction). The existence of mineral palsas is recognized; in this case the peat cover may be extremely thin or even totally non‐existent.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Pissart, Albert ;  Université de Liège - ULiège
Language :
English
Title :
Pingos and palsas: A review of the present state of knowledge
Publication date :
1985
Journal title :
Polar Geography and Geology
ISSN :
0273-8457
eISSN :
2377-7702
Publisher :
V.H. Winston and Sons, Silver Spring, United States - Maryland
Volume :
9
Issue :
3
Pages :
171-195
Funders :
National Council for Scientific Research: 111National Research Council Canada: 431National Research Council Canada: 432National Research Council Canada: 1073National Council for Scientific Research: 1130,1964
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