CGRG Bibliography of Canadian Geomorphology
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Author : Begin, C.; and Filion, L.
Date : 1985
Title : Analyse dendrochronologique d'un glissement de terrain de la region du lac l'Eau Claire (Quebec nordique) [Tree-ring analysis of a landslide in the Clearwater Lake region, northern Quebec]
Publication : Canadian Journal of Earth Sciences
Issue : 22(2):
Page(s) : 175-182
Abstract
A landslide in Clearwater Lake has been dated to spring of 1933 from tree-ring analysis (reaction wood, growth suppression, and corrosion scars). From the 52 sampled trees, seven peak periods of movement were registered within the site before landslide occurrence: 1785, 1815, 1827, 1829, 1852-1853, 1871-1872, 1897, and 1926. After a slow progession lasting 200 years, the slope movements accelerated in 1926, as indicated by suppressed growth rings. It is proposed here that the landslide was the outcome of a long-term slope development partly controlled by climate (precipitation). Postdisturbance forest regeneration (between 1950 and 1976) on the newly exposed substrate is also related to climatic conditions.
Bibliography of Canadian Geomorphology