See Fig. 8.6. Your good friend has the opportunity to buy this riverside land in a beautiful canyon at good price. She wants to build a log cabin on the site. Knowing some geology, what should you tell her?
Answer to relevant QuestionsMany massive debris flows are related to volcanism, as in 1985 when a volcanic eruption in Columbia caused debris flows that buried a village and about 20,000 people. Why are volcanoes often the sites of massive debris flows?“Running water, or surface runoff as in Fig. 8.1 of the previous chapter, means river water.” Is this a correct statement?Calculate the annual rate of erosion, based on the data in the previous question.The previous problem suggests that a stream’s velocity might change frequently. What if the velocity remained rather constant, as it commonly does, during a given period of time?At what point along a stream’s course should the discharge be the greatest, and why?
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