Journal
ENGINEERING GEOLOGY
Volume 83, Issue 1-3, Pages 120-143Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.enggeo.2005.06.028
Keywords
large landslide; climate change; permafrost degradation; northern British Columbia
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At least thirty-eight, large, catastrophic landslides, each either larger than 0.5 M m(3) or longer than 1 km, have occurred in northern British Columbia in the last three decades. The landslides include low-gradient flowslides in cohesive sediments, long-runout rock slides (rock avalanches), and complex rock slide-flows. The flowslides have occurred in a variety of sediments, including glaciolacustrine silt, clay-rich till, and clay-rich colluvium. The rock failures have happened in weak shale overlain by sandstone and volcanic rocks. The frequency of large landslides in northern British Columbia appears to be increasing, suggesting a link to climate change. (c) 2005 Elsevier B.V. All rights reserved.
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