Class Notes (808,131)
Canada (493,086)
EARTHSC 2GG3 (203)
Lecture 12

Earth Science - Lecture 12 Notes.docx

2 Pages
Unlock Document

McMaster University
Earth Sciences
Sergei Basik

Lecture 12 October 2, 2013 LANDSLIDES AND OTHER DOWNSLOPE MOVEMENTS Forces on a Slope  Landslides as a result of torrential rains are classified as geophysical movement  Landslides are a good example that shows there is an interconnection between natural disasters  Only 1% or 2% of landslides start by themselves  When the slope will fail depends on: 1. Slope steepness 2. Material weight (different results if weight is larger than if is smaller) 3. Moisture content (water can change the structure of the landslide) Slope and Load  Slope failure: the relationship between steepness and weight Causes of Landslides  Human activity is the main cause of landslides Oversteepening and Overloading  Increasing the angle increases the chance of sliding movement downward  Adding material at the top (fill)  Material is taken away from the bottom (undercut) Adding Water  Ex. La Conchita Landslide, California, 2005  Can sometimes get this type of landslide naturally (rainfall, etc.)  60% of this type of landslide happens in tropical areas (the natural ones)  Anthropogenic landslides happen every
More Less

Related notes for EARTHSC 2GG3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.