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GEOL 158 - Study Guide Landslides a. From lecture notes: 1. All downslope movem

GEOL 158 - Study Guide Landslides a. From lecture notes: 1. All downslope movement is primarily driven by what factor? 2. What are the four human-caused causes of landslides? 3. Describe each of the four causes of landslides, and how human actions can make things worse. 4. Explain in detail why a little water is good, but a lot of water can lead to debris flows and mud flows. 5. Which natural process can also trigger landslides? 6. What is meant by the word “daylighted”? 7. What are the four types of downslope movement? What are the differences among them? 8. What is talus? Earthflow? 9. What region of the U.S. has the highest landslide susceptibility? 10. How do geologists identify ancient landslides? Give an example. 11. What are four ways that landslide damage can be mitigated? b. From this website: St. Francis Dam disaster 1. When and why was this dam built? 2. How many people were killed when this dam burst? 3. This is considered the second greatest disaster in California’s history. What is the first? 4. What is the LA aqueduct? How long is it and what makes the water flow from the Owens Valley to Los Angeles? 5. How long did the dam hold water before it started leaking? 6. In the end, what was the cause of the dam failure? 7. Read the entire article about this disaster. How do you feel about the role of William Mulholland, the LADWP in this disaster? Could it have been prevented? If you were in charge, what would you have done differently? DO you think Mulholland should have done more? Your homework assignment for this week will be to write a short paragraph addressing these questions. You will post it to a discussion board that I will put up. c. From this article: Portuguese Bend Landslide 1. What natural conditions in this area are conducive to landslides? 2. What specific type of mass movement is likely to occur in this geologic setting? 3. Is it possible that the Portuguese Bend Landslide was triggered entirely by natural causes? 4. What human action(s) could have contributed or triggered this landslide? 5. How would the construction of Crenshaw Boulevard differ from the earlier construction of houses in terms of its ability to trigger a landslide? 6. What do the success of various corrective actions taken here suggest was (were) the cause(s) of the landslide? uploads/Finance/ study-guide-landslides.pdf