CGRG Bibliography of Canadian Geomorphology
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Author : Clague, J.J.
Date : 2010.
Title : Dating landslides with trees.
Publication : In: Tree-Rings and Natural Hazards. A State-of-the-Art. Edited by: M. Stoffel; M.Bollschweiler; D.R. Butler; and B.H, Luckman. Springer Dordrecht Heidelberg, London, New York.
Issue :
Page(s) : 81-90.
Abstract
Dendrochronology, when integrated into geomorphic and stratigraphic studies, is a powerful tool for assessing landslide hazard and risk. It is the only technique that can provide annual, even seasonal, precision on the dates of prehistoric landslides and historic landslides for which no observational data exist. It may prove particularly useful in testing the hypothesis that several landslides suspected of being seismically triggered or caused by an unusually severe storm, are, in fact, the same age. It also can be used to establish chronologies for periods of earthflow activity and stability that, in turn, can be linked to fluctuations of climate on different timescales. Dendrochronology, however, is generally limited to dating landslides that are no more than several hundred years old. Another limitation of the technique is that living trees on landslide deposits and subfossil tree stems entombed within the debris may not closely date the time of the landslide. Caution is thus required in interpreting the relation between dendro-dated trees and the landslides with which they are associated.
Bibliography of Canadian Geomorphology