Periglacial Features From Morfee Mountain, North-Central British Columbia
ABSTRACT. Six periglacial features (sorted polygons, sorted steps, sorted nets, sorted stripes, sorted circles, felsenmeer and a possible altiplanation terrace) are described from a new location in Central British Columbia (locally known as Morfee Mountain, 55”26‘N, 123”02’W) between 1300- 1650 m el...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.4925 http://pubs.aina.ucalgary.ca/arctic/Arctic33-2-349.pdf |
| Summary: | ABSTRACT. Six periglacial features (sorted polygons, sorted steps, sorted nets, sorted stripes, sorted circles, felsenmeer and a possible altiplanation terrace) are described from a new location in Central British Columbia (locally known as Morfee Mountain, 55”26‘N, 123”02’W) between 1300- 1650 m elevation. These features are local in distribution over an area of several km2. Observations on specific features indicate a continuum of intermediate forms between sorted nets, sorted polygons and sorted stripes. The elevation of these features supports the suggestion of Brown and Pew6 (1973) that the lower elevation of permafrost and periglacial features should rise progressively southward along a north-south.transect through the Western Cordillera. RÉSUMÉ. Cet article analyse quelques figures periglaciaires de type Alpin, de la region de Morfee Mountain (B.C.) (55 ” 26’, 123’04’). Sur la face sud, le paysage Alpin commence à 1300m jusqu’au sommet A 1650111. Les figures periglaciaires se situent de 1725111 au sommet. Restent quelques arbres au dessus de cette hauteur, dans de petites zones protCgCs, le long de ruisseaux. La zone Alpine est IimitCe vers le bas par le zone biogeocli-matique subalpine A sapins, tandis que les vallees entourant la montagne, sont dans la zone |
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