Chapter 6. The Work of Streams Section 6.2
Bed Load <ul><li>   Sediment  </li></ul><ul><li>that is  </li></ul><ul><li>carried by a  </li></ul><ul><li>stream along  <...
  Capacity <ul><li>the total amount  </li></ul><ul><li>of sediment a  </li></ul><ul><li>stream is able     </li></ul><ul><...
Alluvium    <ul><li>The sorted  </li></ul><ul><li>material  </li></ul><ul><li>deposited by     </li></ul><ul><li>a stream....
Delta  <ul><li>An accumulation  </li></ul><ul><li>of sediment  </li></ul><ul><li>formed where  </li></ul><ul><li>a stream ...
Natural Levee <ul><li>An elevated  </li></ul><ul><li>landform that </li></ul><ul><li>  parallels a       </li></ul><ul><li...
Floodplain  <ul><li>The flat,  </li></ul><ul><li>low-lying  </li></ul><ul><li>portion of a     </li></ul><ul><li>stream va...
Flood  <ul><li>Occurs when  </li></ul><ul><li>the discharge of  </li></ul><ul><li>a stream becomes    </li></ul><ul><li>so...
Draining Basin  <ul><li>The land  </li></ul><ul><li>area that  </li></ul><ul><li>contributes  </li></ul><ul><li>water to a...
Divide <ul><li>An imaginary  </li></ul><ul><li>line that separates  </li></ul><ul><li>the drainage of      </li></ul><ul><...
Key Concepts <ul><li>Q:  How do Streams erode their channels and transport sediment? </li></ul><ul><li>  </li></ul><ul><li...
  <ul><li>Q:  How does stream deposition occur? </li></ul><ul><li>Streams transport sediment in three ways. </li></ul><ul>...
  <ul><li>Q: What are the two types of stream valleys? </li></ul><ul><li>  </li></ul><ul><li>Two types of stream valleys a...
  <ul><li>Q:  What causes floods, and what are the major flood? </li></ul><ul><li>  </li></ul><ul><li>Most floods are caus...
  <ul><li>Q : What is the relationship between a stream and a drainage basin? </li></ul><ul><li>  </li></ul><ul><li>A drai...
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Chapter 6 the_work_of_streams[1][1]

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Chapter 6 the_work_of_streams[1][1]

  1. 1. Chapter 6. The Work of Streams Section 6.2
  2. 2. Bed Load <ul><li>  Sediment </li></ul><ul><li>that is </li></ul><ul><li>carried by a </li></ul><ul><li>stream along </li></ul><ul><li>the bottom </li></ul><ul><li>of its channel. </li></ul>
  3. 3.   Capacity <ul><li>the total amount </li></ul><ul><li>of sediment a </li></ul><ul><li>stream is able    </li></ul><ul><li>to transport.    </li></ul>
  4. 4. Alluvium   <ul><li>The sorted </li></ul><ul><li>material  </li></ul><ul><li>deposited by    </li></ul><ul><li>a stream.                          </li></ul>
  5. 5. Delta <ul><li>An accumulation </li></ul><ul><li>of sediment </li></ul><ul><li>formed where </li></ul><ul><li>a stream enters    </li></ul><ul><li>  a lake or an </li></ul><ul><li>ocean. </li></ul>
  6. 6. Natural Levee <ul><li>An elevated </li></ul><ul><li>landform that </li></ul><ul><li>  parallels a      </li></ul><ul><li>stream and       </li></ul><ul><li>acts to confine its </li></ul><ul><li>water, except </li></ul><ul><li>during floodstage. </li></ul>
  7. 7. Floodplain <ul><li>The flat,  </li></ul><ul><li>low-lying </li></ul><ul><li>portion of a    </li></ul><ul><li>stream valley </li></ul><ul><li>subject to </li></ul><ul><li>periodic flooding. </li></ul>
  8. 8. Flood <ul><li>Occurs when </li></ul><ul><li>the discharge of </li></ul><ul><li>a stream becomes   </li></ul><ul><li>so great that it </li></ul><ul><li>exceeds the      </li></ul><ul><li>carrying capacity </li></ul><ul><li>of its channel and </li></ul><ul><li>overflows its banks. </li></ul>
  9. 9. Draining Basin <ul><li>The land </li></ul><ul><li>area that </li></ul><ul><li>contributes </li></ul><ul><li>water to a </li></ul><ul><li>stream.   </li></ul>
  10. 10. Divide <ul><li>An imaginary  </li></ul><ul><li>line that separates </li></ul><ul><li>the drainage of     </li></ul><ul><li>  two streams; </li></ul><ul><li>often found </li></ul><ul><li>along a ridge. </li></ul>
  11. 11. Key Concepts <ul><li>Q: How do Streams erode their channels and transport sediment? </li></ul><ul><li>  </li></ul><ul><li>  Streams generally erode their channels lifting loose particles by abrasion,grinding, and by dissolving soluble material. </li></ul>
  12. 12.   <ul><li>Q: How does stream deposition occur? </li></ul><ul><li>Streams transport sediment in three ways. </li></ul><ul><li>1. In solution (dissolved load) </li></ul><ul><li>2. In suspension (suspension) </li></ul><ul><li>3. Scooting or rolling along the bottom (bed load) </li></ul>
  13. 13.   <ul><li>Q: What are the two types of stream valleys? </li></ul><ul><li>  </li></ul><ul><li>Two types of stream valleys are Narrow Valleys and Wide Valleys.  </li></ul><ul><li>  </li></ul>
  14. 14.   <ul><li>Q: What causes floods, and what are the major flood? </li></ul><ul><li>  </li></ul><ul><li>Most floods are caused by rapid spring snow melt or storms that bring heavy rains over a large region. </li></ul>
  15. 15.   <ul><li>Q : What is the relationship between a stream and a drainage basin? </li></ul><ul><li>  </li></ul><ul><li>A drainage basin is the land area that contributes water to a stream. </li></ul>

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