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More Information About Landslides


A video about the Quick Clay Landslide at Rissa - 1978 (with English commentary). 

Description:  On the 29th of April 1978, a quick clay landslide devastated large areas of the rural district of Rissa, Norway. One person died and: 13 farms; 2 homes; a cabin and a community center were taken by the landslide. Five to six million cubic meters of clay collapsed from an area of 330,000 m2 leaving a 1.5 kilometer slide face. The landslide caused great material damage to the community of Leira when a resulting three-meter high floodwave breached the opposite bank of Lake Botnen shortly after the main slide.  The Rissa landslide was caught on 8 mm cinefilm by two film amateurs. This is still used actively in avalanche preventative and educational work.

http://www.youtube.com/watch?v=3q-qfNlEP4A&feature=player_detailpage

 

Information About Sensitive Clays (also known as quick clay or sensitive clay) and Retrogressive Landslides:

http://www.inspectapedia.com/vision/Leda_Clay_Canada.htm

http://www.wisegeek.com/what-is-quick-clay.htm

http://www.getprepared.gc.ca/cnt/hzd/lndslds-eng.aspx

http://pubs.usgs.gov/circ/1325/pdf/Sections/Section1.pdf : see section on Earthflows

http://www.thecanadianencyclopedia.ca/en/article/landslide/

 

Information About the Landslide at Lemieux (1993) Retrogressive Landslides:

http://www.ottawagatineaugeoheritage.ca/subsites/11

http://www.canadiangeographic.ca/magazine/so05/indepth/soc_lemieux.asp

http://www.geocaching.com/geocache/GC1HVEX_lemieuxs-legendary-leda-landslide?guid=894820bf-b35f-499c-8011-c2ff89948086