14. Floods and Streams_06

14. Floods and Streams_06 - FLOODS AND STREAMS 1) What does...

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FLOODS AND STREAMS 1) What does the term “stream” mean to a geologist? Anything in the runoff category 2) Know how the mouth, head, and base level of a stream are spatially related to the stream’s longitudinal profile. Head is at the top of the stream and the mouth is at its lowest altitude Base level is the altitude of the bottom of the stream 3) Know what will happen if a portion of the land a stream runs through should rise above, or fall below the longitudinal profile. If it rises above, the stream will cut down into the land If the land subsides, the stream will deposit material to get back to profile 4) Besides vertical movement of the land, why else might a stream have to adjust to a new longitudinal profile? A change in base level
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5) Know the difference between a young, middle aged, and old aged stream. 6) Be able to identify the following on a diagram: flood plain, cut bank, point bar, oxbow lake, meander scar, yazoo stream/tributary, terrace, and levee. Floodplain – plain that will flood
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14. Floods and Streams_06 - FLOODS AND STREAMS 1) What does...

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