Further Travels in the Canadian Cordillera
Marten Geertsema, David M Cruden
In the proceedings of: GeoHazards 6: 6th Canadian Geohazards ConferenceSession: Multi-element Scenarios
ABSTRACT: The travel angles of landslides continue to be an important parameter in risk analyses. We report on travel angles of 112 long runout landslides in the Canadian Cordillera, expanding on our 2008 study of 61 landslides. The lowest travel angles we report belong to the following groups (in ascending order) sensitive glaciomarine sediments, early deglacial earth flows in lake sediments, diamicts derived from clay shales (they may involve permafrost), glaciolacustrine sediments, earth flows generated by rock slides, confined and unconfined debris flows generated by rock slides, rock avalanches on glaciers, dry planar rock avalanches, and undifferentiated rock avalanches.
RÉSUMÉ: Le fahrboschung d’un mouvement de terrain est un paramètre important dans l’analyse de risque. Ici, nous examinons la première utilisation du concept au Canada, appliquée au glissement de terrain Frank, en Alberta. Nous présentons aussi 112 autres exemples de fahrboschungs associés aux glissements de terrain qui ont eu lieu dans les Cordillières canadiennes, la plupart étant situés dans le nord-est de la Colombie-Britannique. Nous avons aussi divisé les fahrboschungs selon des intervalles appartenant à certains groupes de glissements de terrain. Ceux-ci sont, par ordre de croissance, les sédiments glaciomarins sensibles, les coulées de terre générées par des glissements rocheux, les diamictons dérivés des ardoises, les sédiments glaciolacustres provenant d’une phase d’avancement glaciaire, les avalanches rocheuses, les glissements rocheux-coulées de débris, les glissements rocheux-avalanches de débris et les avalanches rocheuses. 1.
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Geertsema, Marten, Cruden, David M (2014) Further Travels in the Canadian Cordillera in GeoHazards6. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Geertsema_GeoHazards6_144,
author = {{Geertsema, Marten}, {Cruden, David M}}
title = {Further Travels in the Canadian Cordillera }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Further Travels in the Canadian Cordillera }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }