Earth Sciences 2281A/B Lecture 10: Section 10 Notes
12 Mar 2019
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Def: "movement of any materials due to gravity. Rock avalanche that was triggered by an earthquake. Site of a smaller landslide 8 years earlier which buried a village of 3500. Boulder up to 65 tonnes with vmax = 1000 km/hr and vav = 270 km/hr. A landslide of 260 million m3 of rock slid into the water behind the resevoir, and therefore pushing the water above the dam. This caused a flood which displaced 50 million m3 of water to over-top the dam and into the low-lying villages behind the. Canyon walls were steep and made of vuggy limestone with clay interbeds. An engineering failiure because they didn"t build the dam high enough in prediction of a landslide rising the water level. April 29, 1903, 30 million cubic meters of limestone detached from turtle mountain and crashed into the small mining town of frank, alberta.
