External report (Reports)
The Pingos of Prince Patrick Island (76 degrees N - 120 degrees W)
Pissart, Albert
1970
 

Files


Full Text
The Pingos of Prince Patrick Island.pdf
Publisher postprint (3.05 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
permafrost; arctic regions; landforms
Abstract :
[en] More than 150 pingos have been observed on Prince Patrick Island. The majority of these domes of injected ice may be divided into two distinct groups: The first group is made up of more than 100 pingos located on the surface of the island's summit at an altitude of about 100 metres. They are aligned in two parallel rows of domes, circular in ground plan, whose height and diameter do not exceed 13 metres and 250 metres respectively. Presenting no positive trace of present day evolution and showing no relationship with the topography, these forms exist in the valleys as well as on the summits. They are possibly related to some deep geological structure. The second group of pingos is made up of mounds at an altitude close to sea level and situated at the head of two bays more than 90 km distant from each other. In this group particularly are elongated pingos resembling eskers as well as those with the characteristic circular shape. Observed cuts have shown the arrangement of layers in the sides of the pingos as well as the core of injected ice. They appear to have developed following a definite change of sea level which drowned the bay and resulted in the melting of the upper permafrost. The later re-establishment of the permafrost may have begun with the appearance of this injected ice.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Pissart, Albert ;  Université de Liège - ULiège
Language :
English
Title :
The Pingos of Prince Patrick Island (76 degrees N - 120 degrees W)
Publication date :
1970
Publisher :
National Research Council Canada, Canada
Report number :
NRC-IRC-521
Number of pages :
45
Collection name :
Technical Translation (National Research Council of Canada); no. NRC-TT-1401
Available on ORBi :
since 01 September 2020

Statistics


Number of views
15 (0 by ULiège)
Number of downloads
36 (0 by ULiège)

OpenCitations
 
0

Bibliography


Similar publications



Contact ORBi