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homework7_ans - SIO 10, Winter 2009 Homework # 7 Due...

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SIO 10, Winter 2009 Homework # 7 Due Monday, March 2 Lecture 19, 20, 21 Chapters 16, 17, 18, Interlude F 20 points Write your answers on a separate sheet of paper with your name and student ID on it. Short, concise answers are preferred above lengthy ones. Note that your handwriting must be legible to receive credit. Be sure to answer all sub-questions and to use your own words. 1. (a) What factors contribute to the high frequency of landslides in coastal southern California? (b) You are a geologist employed to evaluate landslides on a hillside in La Jolla. What types of features would you look for to decide if the area is at high risk for landslides or other types of mass movement? (c) What can you do to lower the risk of mass movement in that area? (5 points total) a) Southern California is an active plate boundary between the Pacific and North American plates. (1 pt) Earthquakes, steep cliffs, weak substrates, lack of vegetation, heavy rains and coastal wave erosion all contribute to the high frequency of landslides in coastal Southern California. Page 576. (1 pt) b) In order to identify landslide risk, a geologist would look for landforms known to have resulted from previous episodes of mass movement. (1 pt) These include:
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homework7_ans - SIO 10, Winter 2009 Homework # 7 Due...

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