GL 107 Earth Systems Science

K. Hannula

Discussion questions for 10/19/07

1.  Where and why is sediment deposited:

• on a delta

• in natural levees

• along a meandering stream

2.  How does building a dam change erosion and deposition upstream of the dam?  Downstream of a dam?

3.  Describe how a meandering stream's path changes through time.  (Aside: the Animas River just north of Durango is a beautiful example of a meandering stream.)

4.  How are flash floods different from other floods?  What areas are susceptible to flash floods, and why?