The characterization and dating of landslides in the Tsitika River and Schmidt Creek watersheds, northern Vancouver Island, British Columbia

Forty three natural landslide events at 31 landslide sites were examined in the Tsitika River and Schmidt Creek watersheds on Vancouver Island. The watersheds were chosen as a test case, and it is expected that the results will be applicable to similar biogeoclimatic regions on both Vancouver Island and coastal mainland British Columbia. The 365 km;The landslides examined included debris slides, rockfalls, and rockfall/avalanches. They ranged in size from 7,000 m;The landslides were distributed over two bedrock types; a granitic intrusive body (Island Intrusives) and layered volcanics (Karmutsen Volcanics).;Landslides in the study area were dated using dendrochronology, air photograph analysis, and archival information.;Precipitation and seismic data were analyzed, and where possible, the occurrence of landslides were correlated to severe events. (Abstract shortened by UMI.)...